--- /dev/null
+From b9b13c86d7f5f592e2e25c775c75c9fc2a7d09ed Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Tue, 1 Oct 2024 23:28:34 +0200
+Subject: ACPI: battery: Fix possible crash when unregistering a battery hook
+
+From: Armin Wolf <W_Armin@gmx.de>
+
+[ Upstream commit 76959aff14a0012ad6b984ec7686d163deccdc16 ]
+
+When a battery hook returns an error when adding a new battery, then
+the battery hook is automatically unregistered.
+However the battery hook provider cannot know that, so it will later
+call battery_hook_unregister() on the already unregistered battery
+hook, resulting in a crash.
+
+Fix this by using the list head to mark already unregistered battery
+hooks as already being unregistered so that they can be ignored by
+battery_hook_unregister().
+
+Fixes: fa93854f7a7e ("battery: Add the battery hooking API")
+Signed-off-by: Armin Wolf <W_Armin@gmx.de>
+Link: https://patch.msgid.link/20241001212835.341788-3-W_Armin@gmx.de
+Cc: All applicable <stable@vger.kernel.org>
+Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/acpi/battery.c | 12 +++++++++---
+ 1 file changed, 9 insertions(+), 3 deletions(-)
+
+diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
+index a14852b612bba..e3cbaf3c3bbc1 100644
+--- a/drivers/acpi/battery.c
++++ b/drivers/acpi/battery.c
+@@ -715,7 +715,7 @@ static void battery_hook_unregister_unlocked(struct acpi_battery_hook *hook)
+ if (!hook->remove_battery(battery->bat, hook))
+ power_supply_changed(battery->bat);
+ }
+- list_del(&hook->list);
++ list_del_init(&hook->list);
+
+ pr_info("extension unregistered: %s\n", hook->name);
+ }
+@@ -723,7 +723,14 @@ static void battery_hook_unregister_unlocked(struct acpi_battery_hook *hook)
+ void battery_hook_unregister(struct acpi_battery_hook *hook)
+ {
+ mutex_lock(&hook_mutex);
+- battery_hook_unregister_unlocked(hook);
++ /*
++ * Ignore already unregistered battery hooks. This might happen
++ * if a battery hook was previously unloaded due to an error when
++ * adding a new battery.
++ */
++ if (!list_empty(&hook->list))
++ battery_hook_unregister_unlocked(hook);
++
+ mutex_unlock(&hook_mutex);
+ }
+ EXPORT_SYMBOL_GPL(battery_hook_unregister);
+@@ -733,7 +740,6 @@ void battery_hook_register(struct acpi_battery_hook *hook)
+ struct acpi_battery *battery;
+
+ mutex_lock(&hook_mutex);
+- INIT_LIST_HEAD(&hook->list);
+ list_add(&hook->list, &battery_hook_list);
+ /*
+ * Now that the driver is registered, we need
+--
+2.43.0
+
--- /dev/null
+From 325417cada364a3a96e8e344f5d88a325ed88a3e Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Tue, 1 Oct 2024 23:28:33 +0200
+Subject: ACPI: battery: Simplify battery hook locking
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Armin Wolf <W_Armin@gmx.de>
+
+[ Upstream commit 86309cbed26139e1caae7629dcca1027d9a28e75 ]
+
+Move the conditional locking from __battery_hook_unregister()
+into battery_hook_unregister() and rename the low-level function
+to simplify the locking during battery hook removal.
+
+Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
+Reviewed-by: Pali Rohár <pali@kernel.org>
+Signed-off-by: Armin Wolf <W_Armin@gmx.de>
+Link: https://patch.msgid.link/20241001212835.341788-2-W_Armin@gmx.de
+Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Stable-dep-of: 76959aff14a0 ("ACPI: battery: Fix possible crash when unregistering a battery hook")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/acpi/battery.c | 18 +++++++++---------
+ 1 file changed, 9 insertions(+), 9 deletions(-)
+
+diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
+index 7f7ad94f22b91..a14852b612bba 100644
+--- a/drivers/acpi/battery.c
++++ b/drivers/acpi/battery.c
+@@ -703,28 +703,28 @@ static LIST_HEAD(acpi_battery_list);
+ static LIST_HEAD(battery_hook_list);
+ static DEFINE_MUTEX(hook_mutex);
+
+-static void __battery_hook_unregister(struct acpi_battery_hook *hook, int lock)
++static void battery_hook_unregister_unlocked(struct acpi_battery_hook *hook)
+ {
+ struct acpi_battery *battery;
++
+ /*
+ * In order to remove a hook, we first need to
+ * de-register all the batteries that are registered.
+ */
+- if (lock)
+- mutex_lock(&hook_mutex);
+ list_for_each_entry(battery, &acpi_battery_list, list) {
+ if (!hook->remove_battery(battery->bat, hook))
+ power_supply_changed(battery->bat);
+ }
+ list_del(&hook->list);
+- if (lock)
+- mutex_unlock(&hook_mutex);
++
+ pr_info("extension unregistered: %s\n", hook->name);
+ }
+
+ void battery_hook_unregister(struct acpi_battery_hook *hook)
+ {
+- __battery_hook_unregister(hook, 1);
++ mutex_lock(&hook_mutex);
++ battery_hook_unregister_unlocked(hook);
++ mutex_unlock(&hook_mutex);
+ }
+ EXPORT_SYMBOL_GPL(battery_hook_unregister);
+
+@@ -750,7 +750,7 @@ void battery_hook_register(struct acpi_battery_hook *hook)
+ * hooks.
+ */
+ pr_err("extension failed to load: %s", hook->name);
+- __battery_hook_unregister(hook, 0);
++ battery_hook_unregister_unlocked(hook);
+ goto end;
+ }
+
+@@ -789,7 +789,7 @@ static void battery_hook_add_battery(struct acpi_battery *battery)
+ */
+ pr_err("error in extension, unloading: %s",
+ hook_node->name);
+- __battery_hook_unregister(hook_node, 0);
++ battery_hook_unregister_unlocked(hook_node);
+ }
+ }
+ mutex_unlock(&hook_mutex);
+@@ -822,7 +822,7 @@ static void __exit battery_hook_exit(void)
+ * need to remove the hooks.
+ */
+ list_for_each_entry_safe(hook, ptr, &battery_hook_list, list) {
+- __battery_hook_unregister(hook, 1);
++ battery_hook_unregister(hook);
+ }
+ mutex_destroy(&hook_mutex);
+ }
+--
+2.43.0
+
--- /dev/null
+From 3249efc382a1a762d4bcb98330144da4fe7afc37 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 7 Oct 2024 13:08:20 +0100
+Subject: arm64: cputype: Add Neoverse-N3 definitions
+
+From: Mark Rutland <mark.rutland@arm.com>
+
+[ Upstream commit 924725707d80bc2588cefafef76ff3f164d299bc ]
+
+Add cputype definitions for Neoverse-N3. These will be used for errata
+detection in subsequent patches.
+
+These values can be found in Table A-261 ("MIDR_EL1 bit descriptions")
+in issue 02 of the Neoverse-N3 TRM, which can be found at:
+
+ https://developer.arm.com/documentation/107997/0000/?lang=en
+
+Signed-off-by: Mark Rutland <mark.rutland@arm.com>
+Cc: James Morse <james.morse@arm.com>
+Cc: Will Deacon <will@kernel.org>
+Link: https://lore.kernel.org/r/20240930111705.3352047-2-mark.rutland@arm.com
+Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
+[ Mark: trivial backport ]
+Signed-off-by: Mark Rutland <mark.rutland@arm.com>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ arch/arm64/include/asm/cputype.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
+index 5a7dfeb8e8eb5..488f8e7513495 100644
+--- a/arch/arm64/include/asm/cputype.h
++++ b/arch/arm64/include/asm/cputype.h
+@@ -94,6 +94,7 @@
+ #define ARM_CPU_PART_NEOVERSE_V3 0xD84
+ #define ARM_CPU_PART_CORTEX_X925 0xD85
+ #define ARM_CPU_PART_CORTEX_A725 0xD87
++#define ARM_CPU_PART_NEOVERSE_N3 0xD8E
+
+ #define APM_CPU_PART_XGENE 0x000
+ #define APM_CPU_VAR_POTENZA 0x00
+@@ -176,6 +177,7 @@
+ #define MIDR_NEOVERSE_V3 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_V3)
+ #define MIDR_CORTEX_X925 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X925)
+ #define MIDR_CORTEX_A725 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A725)
++#define MIDR_NEOVERSE_N3 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N3)
+ #define MIDR_THUNDERX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
+ #define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
+ #define MIDR_THUNDERX_83XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_83XX)
+--
+2.43.0
+
--- /dev/null
+From c75df3e79cdaefa147a071b7ee2cc648b0445124 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 7 Oct 2024 13:08:21 +0100
+Subject: arm64: errata: Expand speculative SSBS workaround once more
+
+From: Mark Rutland <mark.rutland@arm.com>
+
+[ Upstream commit 081eb7932c2b244f63317a982c5e3990e2c7fbdd ]
+
+A number of Arm Ltd CPUs suffer from errata whereby an MSR to the SSBS
+special-purpose register does not affect subsequent speculative
+instructions, permitting speculative store bypassing for a window of
+time.
+
+We worked around this for a number of CPUs in commits:
+
+* 7187bb7d0b5c7dfa ("arm64: errata: Add workaround for Arm errata 3194386 and 3312417")
+* 75b3c43eab594bfb ("arm64: errata: Expand speculative SSBS workaround")
+* 145502cac7ea70b5 ("arm64: errata: Expand speculative SSBS workaround (again)")
+
+Since then, a (hopefully final) batch of updates have been published,
+with two more affected CPUs. For the affected CPUs the existing
+mitigation is sufficient, as described in their respective Software
+Developer Errata Notice (SDEN) documents:
+
+* Cortex-A715 (MP148) SDEN v15.0, erratum 3456084
+ https://developer.arm.com/documentation/SDEN-2148827/1500/
+
+* Neoverse-N3 (MP195) SDEN v5.0, erratum 3456111
+ https://developer.arm.com/documentation/SDEN-3050973/0500/
+
+Enable the existing mitigation by adding the relevant MIDRs to
+erratum_spec_ssbs_list, and update silicon-errata.rst and the
+Kconfig text accordingly.
+
+Signed-off-by: Mark Rutland <mark.rutland@arm.com>
+Cc: James Morse <james.morse@arm.com>
+Cc: Will Deacon <will@kernel.org>
+Link: https://lore.kernel.org/r/20240930111705.3352047-3-mark.rutland@arm.com
+Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
+[ Mark: fix conflict in silicon-errata.rst ]
+Signed-off-by: Mark Rutland <mark.rutland@arm.com>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ Documentation/arch/arm64/silicon-errata.rst | 4 ++++
+ arch/arm64/Kconfig | 2 ++
+ arch/arm64/kernel/cpu_errata.c | 2 ++
+ 3 files changed, 8 insertions(+)
+
+diff --git a/Documentation/arch/arm64/silicon-errata.rst b/Documentation/arch/arm64/silicon-errata.rst
+index 815be40244f79..3cf806733083c 100644
+--- a/Documentation/arch/arm64/silicon-errata.rst
++++ b/Documentation/arch/arm64/silicon-errata.rst
+@@ -141,6 +141,8 @@ stable kernels.
+ +----------------+-----------------+-----------------+-----------------------------+
+ | ARM | Cortex-A715 | #2645198 | ARM64_ERRATUM_2645198 |
+ +----------------+-----------------+-----------------+-----------------------------+
++| ARM | Cortex-A715 | #3456084 | ARM64_ERRATUM_3194386 |
+++----------------+-----------------+-----------------+-----------------------------+
+ | ARM | Cortex-A720 | #3456091 | ARM64_ERRATUM_3194386 |
+ +----------------+-----------------+-----------------+-----------------------------+
+ | ARM | Cortex-A725 | #3456106 | ARM64_ERRATUM_3194386 |
+@@ -177,6 +179,8 @@ stable kernels.
+ +----------------+-----------------+-----------------+-----------------------------+
+ | ARM | Neoverse-N2 | #3324339 | ARM64_ERRATUM_3194386 |
+ +----------------+-----------------+-----------------+-----------------------------+
++| ARM | Neoverse-N3 | #3456111 | ARM64_ERRATUM_3194386 |
+++----------------+-----------------+-----------------+-----------------------------+
+ | ARM | Neoverse-V1 | #3324341 | ARM64_ERRATUM_3194386 |
+ +----------------+-----------------+-----------------+-----------------------------+
+ | ARM | Neoverse-V2 | #3324336 | ARM64_ERRATUM_3194386 |
+diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
+index fbd840c0948b5..eab866d690334 100644
+--- a/arch/arm64/Kconfig
++++ b/arch/arm64/Kconfig
+@@ -1079,6 +1079,7 @@ config ARM64_ERRATUM_3194386
+ * ARM Cortex-A78C erratum 3324346
+ * ARM Cortex-A78C erratum 3324347
+ * ARM Cortex-A710 erratam 3324338
++ * ARM Cortex-A715 errartum 3456084
+ * ARM Cortex-A720 erratum 3456091
+ * ARM Cortex-A725 erratum 3456106
+ * ARM Cortex-X1 erratum 3324344
+@@ -1089,6 +1090,7 @@ config ARM64_ERRATUM_3194386
+ * ARM Cortex-X925 erratum 3324334
+ * ARM Neoverse-N1 erratum 3324349
+ * ARM Neoverse N2 erratum 3324339
++ * ARM Neoverse-N3 erratum 3456111
+ * ARM Neoverse-V1 erratum 3324341
+ * ARM Neoverse V2 erratum 3324336
+ * ARM Neoverse-V3 erratum 3312417
+diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
+index 437f96205e4fc..463b48d0f9250 100644
+--- a/arch/arm64/kernel/cpu_errata.c
++++ b/arch/arm64/kernel/cpu_errata.c
+@@ -455,6 +455,7 @@ static const struct midr_range erratum_spec_ssbs_list[] = {
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
++ MIDR_ALL_VERSIONS(MIDR_CORTEX_A715),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A720),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A725),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
+@@ -466,6 +467,7 @@ static const struct midr_range erratum_spec_ssbs_list[] = {
+ MIDR_ALL_VERSIONS(MIDR_MICROSOFT_AZURE_COBALT_100),
+ MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
+ MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
++ MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N3),
+ MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
+ MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V2),
+ MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3),
+--
+2.43.0
+
--- /dev/null
+From 6b98c95b9f5cb72dfb253611015d57f67ce8e133 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Tue, 24 Sep 2024 16:50:22 -0400
+Subject: btrfs: drop the backref cache during relocation if we commit
+
+From: Josef Bacik <josef@toxicpanda.com>
+
+[ Upstream commit db7e68b522c01eb666cfe1f31637775f18997811 ]
+
+Since the inception of relocation we have maintained the backref cache
+across transaction commits, updating the backref cache with the new
+bytenr whenever we COWed blocks that were in the cache, and then
+updating their bytenr once we detected a transaction id change.
+
+This works as long as we're only ever modifying blocks, not changing the
+structure of the tree.
+
+However relocation does in fact change the structure of the tree. For
+example, if we are relocating a data extent, we will look up all the
+leaves that point to this data extent. We will then call
+do_relocation() on each of these leaves, which will COW down to the leaf
+and then update the file extent location.
+
+But, a key feature of do_relocation() is the pending list. This is all
+the pending nodes that we modified when we updated the file extent item.
+We will then process all of these blocks via finish_pending_nodes, which
+calls do_relocation() on all of the nodes that led up to that leaf.
+
+The purpose of this is to make sure we don't break sharing unless we
+absolutely have to. Consider the case that we have 3 snapshots that all
+point to this leaf through the same nodes, the initial COW would have
+created a whole new path. If we did this for all 3 snapshots we would
+end up with 3x the number of nodes we had originally. To avoid this we
+will cycle through each of the snapshots that point to each of these
+nodes and update their pointers to point at the new nodes.
+
+Once we update the pointer to the new node we will drop the node we
+removed the link for and all of its children via btrfs_drop_subtree().
+This is essentially just btrfs_drop_snapshot(), but for an arbitrary
+point in the snapshot.
+
+The problem with this is that we will never reflect this in the backref
+cache. If we do this btrfs_drop_snapshot() for a node that is in the
+backref tree, we will leave the node in the backref tree. This becomes
+a problem when we change the transid, as now the backref cache has
+entire subtrees that no longer exist, but exist as if they still are
+pointed to by the same roots.
+
+In the best case scenario you end up with "adding refs to an existing
+tree ref" errors from insert_inline_extent_backref(), where we attempt
+to link in nodes on roots that are no longer valid.
+
+Worst case you will double free some random block and re-use it when
+there's still references to the block.
+
+This is extremely subtle, and the consequences are quite bad. There
+isn't a way to make sure our backref cache is consistent between
+transid's.
+
+In order to fix this we need to simply evict the entire backref cache
+anytime we cross transid's. This reduces performance in that we have to
+rebuild this backref cache every time we change transid's, but fixes the
+bug.
+
+This has existed since relocation was added, and is a pretty critical
+bug. There's a lot more cleanup that can be done now that this
+functionality is going away, but this patch is as small as possible in
+order to fix the problem and make it easy for us to backport it to all
+the kernels it needs to be backported to.
+
+Followup series will dismantle more of this code and simplify relocation
+drastically to remove this functionality.
+
+We have a reproducer that reproduced the corruption within a few minutes
+of running. With this patch it survives several iterations/hours of
+running the reproducer.
+
+Fixes: 3fd0a5585eb9 ("Btrfs: Metadata ENOSPC handling for balance")
+CC: stable@vger.kernel.org
+Reviewed-by: Boris Burkov <boris@bur.io>
+Signed-off-by: Josef Bacik <josef@toxicpanda.com>
+Signed-off-by: David Sterba <dsterba@suse.com>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ fs/btrfs/backref.c | 12 ++++---
+ fs/btrfs/relocation.c | 75 ++-----------------------------------------
+ 2 files changed, 11 insertions(+), 76 deletions(-)
+
+diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
+index df223ebf2551c..a2ba1c7fc16af 100644
+--- a/fs/btrfs/backref.c
++++ b/fs/btrfs/backref.c
+@@ -3098,10 +3098,14 @@ void btrfs_backref_release_cache(struct btrfs_backref_cache *cache)
+ btrfs_backref_cleanup_node(cache, node);
+ }
+
+- cache->last_trans = 0;
+-
+- for (i = 0; i < BTRFS_MAX_LEVEL; i++)
+- ASSERT(list_empty(&cache->pending[i]));
++ for (i = 0; i < BTRFS_MAX_LEVEL; i++) {
++ while (!list_empty(&cache->pending[i])) {
++ node = list_first_entry(&cache->pending[i],
++ struct btrfs_backref_node,
++ list);
++ btrfs_backref_cleanup_node(cache, node);
++ }
++ }
+ ASSERT(list_empty(&cache->pending_edge));
+ ASSERT(list_empty(&cache->useless_node));
+ ASSERT(list_empty(&cache->changed));
+diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
+index 6e590da98742b..299eac696eb42 100644
+--- a/fs/btrfs/relocation.c
++++ b/fs/btrfs/relocation.c
+@@ -235,70 +235,6 @@ static struct btrfs_backref_node *walk_down_backref(
+ return NULL;
+ }
+
+-static void update_backref_node(struct btrfs_backref_cache *cache,
+- struct btrfs_backref_node *node, u64 bytenr)
+-{
+- struct rb_node *rb_node;
+- rb_erase(&node->rb_node, &cache->rb_root);
+- node->bytenr = bytenr;
+- rb_node = rb_simple_insert(&cache->rb_root, node->bytenr, &node->rb_node);
+- if (rb_node)
+- btrfs_backref_panic(cache->fs_info, bytenr, -EEXIST);
+-}
+-
+-/*
+- * update backref cache after a transaction commit
+- */
+-static int update_backref_cache(struct btrfs_trans_handle *trans,
+- struct btrfs_backref_cache *cache)
+-{
+- struct btrfs_backref_node *node;
+- int level = 0;
+-
+- if (cache->last_trans == 0) {
+- cache->last_trans = trans->transid;
+- return 0;
+- }
+-
+- if (cache->last_trans == trans->transid)
+- return 0;
+-
+- /*
+- * detached nodes are used to avoid unnecessary backref
+- * lookup. transaction commit changes the extent tree.
+- * so the detached nodes are no longer useful.
+- */
+- while (!list_empty(&cache->detached)) {
+- node = list_entry(cache->detached.next,
+- struct btrfs_backref_node, list);
+- btrfs_backref_cleanup_node(cache, node);
+- }
+-
+- while (!list_empty(&cache->changed)) {
+- node = list_entry(cache->changed.next,
+- struct btrfs_backref_node, list);
+- list_del_init(&node->list);
+- BUG_ON(node->pending);
+- update_backref_node(cache, node, node->new_bytenr);
+- }
+-
+- /*
+- * some nodes can be left in the pending list if there were
+- * errors during processing the pending nodes.
+- */
+- for (level = 0; level < BTRFS_MAX_LEVEL; level++) {
+- list_for_each_entry(node, &cache->pending[level], list) {
+- BUG_ON(!node->pending);
+- if (node->bytenr == node->new_bytenr)
+- continue;
+- update_backref_node(cache, node, node->new_bytenr);
+- }
+- }
+-
+- cache->last_trans = 0;
+- return 1;
+-}
+-
+ static bool reloc_root_is_dead(const struct btrfs_root *root)
+ {
+ /*
+@@ -557,9 +493,6 @@ static int clone_backref_node(struct btrfs_trans_handle *trans,
+ struct btrfs_backref_edge *new_edge;
+ struct rb_node *rb_node;
+
+- if (cache->last_trans > 0)
+- update_backref_cache(trans, cache);
+-
+ rb_node = rb_simple_search(&cache->rb_root, src->commit_root->start);
+ if (rb_node) {
+ node = rb_entry(rb_node, struct btrfs_backref_node, rb_node);
+@@ -3682,11 +3615,9 @@ static noinline_for_stack int relocate_block_group(struct reloc_control *rc)
+ break;
+ }
+ restart:
+- if (update_backref_cache(trans, &rc->backref_cache)) {
+- btrfs_end_transaction(trans);
+- trans = NULL;
+- continue;
+- }
++ if (rc->backref_cache.last_trans != trans->transid)
++ btrfs_backref_release_cache(&rc->backref_cache);
++ rc->backref_cache.last_trans = trans->transid;
+
+ ret = find_next_extent(rc, path, &key);
+ if (ret < 0)
+--
+2.43.0
+
--- /dev/null
+From 861e1398f70e051251ee35ea90353554dee616c4 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Fri, 22 Sep 2023 13:07:29 +0200
+Subject: btrfs: relocation: constify parameters where possible
+
+From: David Sterba <dsterba@suse.com>
+
+[ Upstream commit ab7c8bbf3a088730e58da224bcad512f1dd9ca74 ]
+
+Lots of the functions in relocation.c don't change pointer parameters
+but lack the annotations. Add them and reformat according to current
+coding style if needed.
+
+Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
+Signed-off-by: David Sterba <dsterba@suse.com>
+Stable-dep-of: db7e68b522c0 ("btrfs: drop the backref cache during relocation if we commit")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ fs/btrfs/relocation.c | 56 +++++++++++++++++++++----------------------
+ fs/btrfs/relocation.h | 9 +++----
+ 2 files changed, 33 insertions(+), 32 deletions(-)
+
+diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
+index 1f4fd6c86fb00..6e590da98742b 100644
+--- a/fs/btrfs/relocation.c
++++ b/fs/btrfs/relocation.c
+@@ -299,7 +299,7 @@ static int update_backref_cache(struct btrfs_trans_handle *trans,
+ return 1;
+ }
+
+-static bool reloc_root_is_dead(struct btrfs_root *root)
++static bool reloc_root_is_dead(const struct btrfs_root *root)
+ {
+ /*
+ * Pair with set_bit/clear_bit in clean_dirty_subvols and
+@@ -320,7 +320,7 @@ static bool reloc_root_is_dead(struct btrfs_root *root)
+ * from no reloc root. But btrfs_should_ignore_reloc_root() below is a
+ * special case.
+ */
+-static bool have_reloc_root(struct btrfs_root *root)
++static bool have_reloc_root(const struct btrfs_root *root)
+ {
+ if (reloc_root_is_dead(root))
+ return false;
+@@ -329,7 +329,7 @@ static bool have_reloc_root(struct btrfs_root *root)
+ return true;
+ }
+
+-bool btrfs_should_ignore_reloc_root(struct btrfs_root *root)
++bool btrfs_should_ignore_reloc_root(const struct btrfs_root *root)
+ {
+ struct btrfs_root *reloc_root;
+
+@@ -546,7 +546,7 @@ static noinline_for_stack struct btrfs_backref_node *build_backref_tree(
+ */
+ static int clone_backref_node(struct btrfs_trans_handle *trans,
+ struct reloc_control *rc,
+- struct btrfs_root *src,
++ const struct btrfs_root *src,
+ struct btrfs_root *dest)
+ {
+ struct btrfs_root *reloc_root = src->reloc_root;
+@@ -1186,9 +1186,9 @@ int replace_file_extents(struct btrfs_trans_handle *trans,
+ return ret;
+ }
+
+-static noinline_for_stack
+-int memcmp_node_keys(struct extent_buffer *eb, int slot,
+- struct btrfs_path *path, int level)
++static noinline_for_stack int memcmp_node_keys(const struct extent_buffer *eb,
++ int slot, const struct btrfs_path *path,
++ int level)
+ {
+ struct btrfs_disk_key key1;
+ struct btrfs_disk_key key2;
+@@ -1517,8 +1517,8 @@ int walk_down_reloc_tree(struct btrfs_root *root, struct btrfs_path *path,
+ * [min_key, max_key)
+ */
+ static int invalidate_extent_cache(struct btrfs_root *root,
+- struct btrfs_key *min_key,
+- struct btrfs_key *max_key)
++ const struct btrfs_key *min_key,
++ const struct btrfs_key *max_key)
+ {
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ struct inode *inode = NULL;
+@@ -2829,7 +2829,7 @@ int relocate_tree_blocks(struct btrfs_trans_handle *trans,
+
+ static noinline_for_stack int prealloc_file_extent_cluster(
+ struct btrfs_inode *inode,
+- struct file_extent_cluster *cluster)
++ const struct file_extent_cluster *cluster)
+ {
+ u64 alloc_hint = 0;
+ u64 start;
+@@ -2964,7 +2964,7 @@ static noinline_for_stack int setup_relocation_extent_mapping(struct inode *inod
+ /*
+ * Allow error injection to test balance/relocation cancellation
+ */
+-noinline int btrfs_should_cancel_balance(struct btrfs_fs_info *fs_info)
++noinline int btrfs_should_cancel_balance(const struct btrfs_fs_info *fs_info)
+ {
+ return atomic_read(&fs_info->balance_cancel_req) ||
+ atomic_read(&fs_info->reloc_cancel_req) ||
+@@ -2972,7 +2972,7 @@ noinline int btrfs_should_cancel_balance(struct btrfs_fs_info *fs_info)
+ }
+ ALLOW_ERROR_INJECTION(btrfs_should_cancel_balance, TRUE);
+
+-static u64 get_cluster_boundary_end(struct file_extent_cluster *cluster,
++static u64 get_cluster_boundary_end(const struct file_extent_cluster *cluster,
+ int cluster_nr)
+ {
+ /* Last extent, use cluster end directly */
+@@ -2984,7 +2984,7 @@ static u64 get_cluster_boundary_end(struct file_extent_cluster *cluster,
+ }
+
+ static int relocate_one_page(struct inode *inode, struct file_ra_state *ra,
+- struct file_extent_cluster *cluster,
++ const struct file_extent_cluster *cluster,
+ int *cluster_nr, unsigned long page_index)
+ {
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+@@ -3119,7 +3119,7 @@ static int relocate_one_page(struct inode *inode, struct file_ra_state *ra,
+ }
+
+ static int relocate_file_extent_cluster(struct inode *inode,
+- struct file_extent_cluster *cluster)
++ const struct file_extent_cluster *cluster)
+ {
+ u64 offset = BTRFS_I(inode)->index_cnt;
+ unsigned long index;
+@@ -3157,9 +3157,9 @@ static int relocate_file_extent_cluster(struct inode *inode,
+ return ret;
+ }
+
+-static noinline_for_stack
+-int relocate_data_extent(struct inode *inode, struct btrfs_key *extent_key,
+- struct file_extent_cluster *cluster)
++static noinline_for_stack int relocate_data_extent(struct inode *inode,
++ const struct btrfs_key *extent_key,
++ struct file_extent_cluster *cluster)
+ {
+ int ret;
+
+@@ -3192,7 +3192,7 @@ int relocate_data_extent(struct inode *inode, struct btrfs_key *extent_key,
+ * the major work is getting the generation and level of the block
+ */
+ static int add_tree_block(struct reloc_control *rc,
+- struct btrfs_key *extent_key,
++ const struct btrfs_key *extent_key,
+ struct btrfs_path *path,
+ struct rb_root *blocks)
+ {
+@@ -3443,11 +3443,10 @@ static int delete_v1_space_cache(struct extent_buffer *leaf,
+ /*
+ * helper to find all tree blocks that reference a given data extent
+ */
+-static noinline_for_stack
+-int add_data_references(struct reloc_control *rc,
+- struct btrfs_key *extent_key,
+- struct btrfs_path *path,
+- struct rb_root *blocks)
++static noinline_for_stack int add_data_references(struct reloc_control *rc,
++ const struct btrfs_key *extent_key,
++ struct btrfs_path *path,
++ struct rb_root *blocks)
+ {
+ struct btrfs_backref_walk_ctx ctx = { 0 };
+ struct ulist_iterator leaf_uiter;
+@@ -3873,9 +3872,9 @@ static void delete_orphan_inode(struct btrfs_trans_handle *trans,
+ * helper to create inode for data relocation.
+ * the inode is in data relocation tree and its link count is 0
+ */
+-static noinline_for_stack
+-struct inode *create_reloc_inode(struct btrfs_fs_info *fs_info,
+- struct btrfs_block_group *group)
++static noinline_for_stack struct inode *create_reloc_inode(
++ struct btrfs_fs_info *fs_info,
++ const struct btrfs_block_group *group)
+ {
+ struct inode *inode = NULL;
+ struct btrfs_trans_handle *trans;
+@@ -4421,7 +4420,8 @@ int btrfs_reloc_clone_csums(struct btrfs_ordered_extent *ordered)
+ }
+
+ int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans,
+- struct btrfs_root *root, struct extent_buffer *buf,
++ struct btrfs_root *root,
++ const struct extent_buffer *buf,
+ struct extent_buffer *cow)
+ {
+ struct btrfs_fs_info *fs_info = root->fs_info;
+@@ -4560,7 +4560,7 @@ int btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
+ *
+ * Return U64_MAX if no running relocation.
+ */
+-u64 btrfs_get_reloc_bg_bytenr(struct btrfs_fs_info *fs_info)
++u64 btrfs_get_reloc_bg_bytenr(const struct btrfs_fs_info *fs_info)
+ {
+ u64 logical = U64_MAX;
+
+diff --git a/fs/btrfs/relocation.h b/fs/btrfs/relocation.h
+index af749c780b4e7..5fb60f2deb530 100644
+--- a/fs/btrfs/relocation.h
++++ b/fs/btrfs/relocation.h
+@@ -10,15 +10,16 @@ int btrfs_update_reloc_root(struct btrfs_trans_handle *trans,
+ int btrfs_recover_relocation(struct btrfs_fs_info *fs_info);
+ int btrfs_reloc_clone_csums(struct btrfs_ordered_extent *ordered);
+ int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans,
+- struct btrfs_root *root, struct extent_buffer *buf,
++ struct btrfs_root *root,
++ const struct extent_buffer *buf,
+ struct extent_buffer *cow);
+ void btrfs_reloc_pre_snapshot(struct btrfs_pending_snapshot *pending,
+ u64 *bytes_to_reserve);
+ int btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
+ struct btrfs_pending_snapshot *pending);
+-int btrfs_should_cancel_balance(struct btrfs_fs_info *fs_info);
++int btrfs_should_cancel_balance(const struct btrfs_fs_info *fs_info);
+ struct btrfs_root *find_reloc_root(struct btrfs_fs_info *fs_info, u64 bytenr);
+-bool btrfs_should_ignore_reloc_root(struct btrfs_root *root);
+-u64 btrfs_get_reloc_bg_bytenr(struct btrfs_fs_info *fs_info);
++bool btrfs_should_ignore_reloc_root(const struct btrfs_root *root);
++u64 btrfs_get_reloc_bg_bytenr(const struct btrfs_fs_info *fs_info);
+
+ #endif
+--
+2.43.0
+
--- /dev/null
+From 672bbdb39106b9f2e610300cdd2bb15f287c2630 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Fri, 22 Sep 2023 13:07:25 +0200
+Subject: btrfs: relocation: return bool from btrfs_should_ignore_reloc_root
+
+From: David Sterba <dsterba@suse.com>
+
+[ Upstream commit 32f2abca380fedc60f7a8d3288e4c9586672e207 ]
+
+btrfs_should_ignore_reloc_root() is a predicate so it should return
+bool.
+
+Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
+Reviewed-by: Qu Wenruo <wqu@suse.com>
+Signed-off-by: David Sterba <dsterba@suse.com>
+Stable-dep-of: db7e68b522c0 ("btrfs: drop the backref cache during relocation if we commit")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ fs/btrfs/relocation.c | 19 +++++++++----------
+ fs/btrfs/relocation.h | 2 +-
+ 2 files changed, 10 insertions(+), 11 deletions(-)
+
+diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
+index 05b2a59ce8897..1f4fd6c86fb00 100644
+--- a/fs/btrfs/relocation.c
++++ b/fs/btrfs/relocation.c
+@@ -329,31 +329,30 @@ static bool have_reloc_root(struct btrfs_root *root)
+ return true;
+ }
+
+-int btrfs_should_ignore_reloc_root(struct btrfs_root *root)
++bool btrfs_should_ignore_reloc_root(struct btrfs_root *root)
+ {
+ struct btrfs_root *reloc_root;
+
+ if (!test_bit(BTRFS_ROOT_SHAREABLE, &root->state))
+- return 0;
++ return false;
+
+ /* This root has been merged with its reloc tree, we can ignore it */
+ if (reloc_root_is_dead(root))
+- return 1;
++ return true;
+
+ reloc_root = root->reloc_root;
+ if (!reloc_root)
+- return 0;
++ return false;
+
+ if (btrfs_header_generation(reloc_root->commit_root) ==
+ root->fs_info->running_transaction->transid)
+- return 0;
++ return false;
+ /*
+- * if there is reloc tree and it was created in previous
+- * transaction backref lookup can find the reloc tree,
+- * so backref node for the fs tree root is useless for
+- * relocation.
++ * If there is reloc tree and it was created in previous transaction
++ * backref lookup can find the reloc tree, so backref node for the fs
++ * tree root is useless for relocation.
+ */
+- return 1;
++ return true;
+ }
+
+ /*
+diff --git a/fs/btrfs/relocation.h b/fs/btrfs/relocation.h
+index 77d69f6ae967c..af749c780b4e7 100644
+--- a/fs/btrfs/relocation.h
++++ b/fs/btrfs/relocation.h
+@@ -18,7 +18,7 @@ int btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
+ struct btrfs_pending_snapshot *pending);
+ int btrfs_should_cancel_balance(struct btrfs_fs_info *fs_info);
+ struct btrfs_root *find_reloc_root(struct btrfs_fs_info *fs_info, u64 bytenr);
+-int btrfs_should_ignore_reloc_root(struct btrfs_root *root);
++bool btrfs_should_ignore_reloc_root(struct btrfs_root *root);
+ u64 btrfs_get_reloc_bg_bytenr(struct btrfs_fs_info *fs_info);
+
+ #endif
+--
+2.43.0
+
--- /dev/null
+From 5806715b646c58b9f18a3ddc2baa1e1e79c4ae94 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Fri, 21 Jun 2024 21:39:33 +0300
+Subject: build-id: require program headers to be right after ELF header
+
+From: Alexey Dobriyan <adobriyan@gmail.com>
+
+[ Upstream commit 961a2851324561caed579764ffbee3db82b32829 ]
+
+Neither ELF spec not ELF loader require program header to be placed right
+after ELF header, but build-id code very much assumes such placement:
+
+See
+
+ find_get_page(vma->vm_file->f_mapping, 0);
+
+line and checks against PAGE_SIZE.
+
+Returns errors for now until someone rewrites build-id parser
+to be more inline with load_elf_binary().
+
+Link: https://lkml.kernel.org/r/d58bc281-6ca7-467a-9a64-40fa214bd63e@p183
+Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
+Reviewed-by: Jiri Olsa <jolsa@kernel.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Stable-dep-of: 905415ff3ffb ("lib/buildid: harden build ID parsing logic")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ lib/buildid.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/lib/buildid.c b/lib/buildid.c
+index e3a7acdeef0ed..cdc0950f73843 100644
+--- a/lib/buildid.c
++++ b/lib/buildid.c
+@@ -73,6 +73,13 @@ static int get_build_id_32(const void *page_addr, unsigned char *build_id,
+ Elf32_Phdr *phdr;
+ int i;
+
++ /*
++ * FIXME
++ * Neither ELF spec nor ELF loader require that program headers
++ * start immediately after ELF header.
++ */
++ if (ehdr->e_phoff != sizeof(Elf32_Ehdr))
++ return -EINVAL;
+ /* only supports phdr that fits in one page */
+ if (ehdr->e_phnum >
+ (PAGE_SIZE - sizeof(Elf32_Ehdr)) / sizeof(Elf32_Phdr))
+@@ -98,6 +105,13 @@ static int get_build_id_64(const void *page_addr, unsigned char *build_id,
+ Elf64_Phdr *phdr;
+ int i;
+
++ /*
++ * FIXME
++ * Neither ELF spec nor ELF loader require that program headers
++ * start immediately after ELF header.
++ */
++ if (ehdr->e_phoff != sizeof(Elf64_Ehdr))
++ return -EINVAL;
+ /* only supports phdr that fits in one page */
+ if (ehdr->e_phnum >
+ (PAGE_SIZE - sizeof(Elf64_Ehdr)) / sizeof(Elf64_Phdr))
+--
+2.43.0
+
--- /dev/null
+From 2cbac7e701d4dd122454b2ffe93683c8d35b99d7 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 12 Aug 2024 10:43:03 +0530
+Subject: clk: qcom: gcc-sc8180x: Add GPLL9 support
+
+From: Satya Priya Kakitapalli <quic_skakitap@quicinc.com>
+
+[ Upstream commit 818a2f8d5e4ad2c1e39a4290158fe8e39a744c70 ]
+
+Add the missing GPLL9 pll and fix the gcc_parents_7 data to use
+the correct pll hw.
+
+Fixes: 4433594bbe5d ("clk: qcom: gcc: Add global clock controller driver for SC8180x")
+Cc: stable@vger.kernel.org
+Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+Signed-off-by: Satya Priya Kakitapalli <quic_skakitap@quicinc.com>
+Link: https://lore.kernel.org/r/20240812-gcc-sc8180x-fixes-v2-3-8b3eaa5fb856@quicinc.com
+Signed-off-by: Bjorn Andersson <andersson@kernel.org>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/clk/qcom/gcc-sc8180x.c | 20 +++++++++++++++++++-
+ 1 file changed, 19 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/clk/qcom/gcc-sc8180x.c b/drivers/clk/qcom/gcc-sc8180x.c
+index 283bda4d1e701..ec0c45881c67a 100644
+--- a/drivers/clk/qcom/gcc-sc8180x.c
++++ b/drivers/clk/qcom/gcc-sc8180x.c
+@@ -142,6 +142,23 @@ static struct clk_alpha_pll gpll7 = {
+ },
+ };
+
++static struct clk_alpha_pll gpll9 = {
++ .offset = 0x1c000,
++ .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_TRION],
++ .clkr = {
++ .enable_reg = 0x52000,
++ .enable_mask = BIT(9),
++ .hw.init = &(const struct clk_init_data) {
++ .name = "gpll9",
++ .parent_data = &(const struct clk_parent_data) {
++ .fw_name = "bi_tcxo",
++ },
++ .num_parents = 1,
++ .ops = &clk_alpha_pll_fixed_trion_ops,
++ },
++ },
++};
++
+ static const struct parent_map gcc_parent_map_0[] = {
+ { P_BI_TCXO, 0 },
+ { P_GPLL0_OUT_MAIN, 1 },
+@@ -241,7 +258,7 @@ static const struct parent_map gcc_parent_map_7[] = {
+ static const struct clk_parent_data gcc_parents_7[] = {
+ { .fw_name = "bi_tcxo", },
+ { .hw = &gpll0.clkr.hw },
+- { .name = "gppl9" },
++ { .hw = &gpll9.clkr.hw },
+ { .hw = &gpll4.clkr.hw },
+ { .hw = &gpll0_out_even.clkr.hw },
+ };
+@@ -4419,6 +4436,7 @@ static struct clk_regmap *gcc_sc8180x_clocks[] = {
+ [GPLL1] = &gpll1.clkr,
+ [GPLL4] = &gpll4.clkr,
+ [GPLL7] = &gpll7.clkr,
++ [GPLL9] = &gpll9.clkr,
+ };
+
+ static const struct qcom_reset_map gcc_sc8180x_resets[] = {
+--
+2.43.0
+
--- /dev/null
+From 12ece7b7eda838489b08fbe44e0445d67af49266 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Sun, 6 Oct 2024 22:51:07 +0200
+Subject: cpufreq: intel_pstate: Make hwp_notify_lock a raw spinlock
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Uwe Kleine-König <ukleinek@debian.org>
+
+commit 8b4865cd904650cbed7f2407e653934c621b8127 upstream.
+
+notify_hwp_interrupt() is called via sysvec_thermal() ->
+smp_thermal_vector() -> intel_thermal_interrupt() in hard irq context.
+For this reason it must not use a simple spin_lock that sleeps with
+PREEMPT_RT enabled. So convert it to a raw spinlock.
+
+Reported-by: xiao sheng wen <atzlinux@sina.com>
+Link: https://bugs.debian.org/1076483
+Signed-off-by: Uwe Kleine-König <ukleinek@debian.org>
+Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
+Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+Tested-by: xiao sheng wen <atzlinux@sina.com>
+Link: https://patch.msgid.link/20240919081121.10784-2-ukleinek@debian.org
+Cc: All applicable <stable@vger.kernel.org>
+Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+[ukleinek: Backport to v6.6.y]
+Signed-off-by: Uwe Kleine-König <ukleinek@debian.org>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/cpufreq/intel_pstate.c | 20 ++++++++++----------
+ 1 file changed, 10 insertions(+), 10 deletions(-)
+
+diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
+index 0ee3a04bb1022..8a4fdf212ce0d 100644
+--- a/drivers/cpufreq/intel_pstate.c
++++ b/drivers/cpufreq/intel_pstate.c
+@@ -1632,7 +1632,7 @@ static void intel_pstate_notify_work(struct work_struct *work)
+ wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_STATUS, 0);
+ }
+
+-static DEFINE_SPINLOCK(hwp_notify_lock);
++static DEFINE_RAW_SPINLOCK(hwp_notify_lock);
+ static cpumask_t hwp_intr_enable_mask;
+
+ void notify_hwp_interrupt(void)
+@@ -1649,7 +1649,7 @@ void notify_hwp_interrupt(void)
+ if (!(value & 0x01))
+ return;
+
+- spin_lock_irqsave(&hwp_notify_lock, flags);
++ raw_spin_lock_irqsave(&hwp_notify_lock, flags);
+
+ if (!cpumask_test_cpu(this_cpu, &hwp_intr_enable_mask))
+ goto ack_intr;
+@@ -1673,13 +1673,13 @@ void notify_hwp_interrupt(void)
+
+ schedule_delayed_work(&cpudata->hwp_notify_work, msecs_to_jiffies(10));
+
+- spin_unlock_irqrestore(&hwp_notify_lock, flags);
++ raw_spin_unlock_irqrestore(&hwp_notify_lock, flags);
+
+ return;
+
+ ack_intr:
+ wrmsrl_safe(MSR_HWP_STATUS, 0);
+- spin_unlock_irqrestore(&hwp_notify_lock, flags);
++ raw_spin_unlock_irqrestore(&hwp_notify_lock, flags);
+ }
+
+ static void intel_pstate_disable_hwp_interrupt(struct cpudata *cpudata)
+@@ -1692,10 +1692,10 @@ static void intel_pstate_disable_hwp_interrupt(struct cpudata *cpudata)
+ /* wrmsrl_on_cpu has to be outside spinlock as this can result in IPC */
+ wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x00);
+
+- spin_lock_irqsave(&hwp_notify_lock, flags);
++ raw_spin_lock_irqsave(&hwp_notify_lock, flags);
+ if (cpumask_test_and_clear_cpu(cpudata->cpu, &hwp_intr_enable_mask))
+ cancel_delayed_work(&cpudata->hwp_notify_work);
+- spin_unlock_irqrestore(&hwp_notify_lock, flags);
++ raw_spin_unlock_irqrestore(&hwp_notify_lock, flags);
+ }
+
+ static void intel_pstate_enable_hwp_interrupt(struct cpudata *cpudata)
+@@ -1704,10 +1704,10 @@ static void intel_pstate_enable_hwp_interrupt(struct cpudata *cpudata)
+ if (boot_cpu_has(X86_FEATURE_HWP_NOTIFY)) {
+ unsigned long flags;
+
+- spin_lock_irqsave(&hwp_notify_lock, flags);
++ raw_spin_lock_irqsave(&hwp_notify_lock, flags);
+ INIT_DELAYED_WORK(&cpudata->hwp_notify_work, intel_pstate_notify_work);
+ cpumask_set_cpu(cpudata->cpu, &hwp_intr_enable_mask);
+- spin_unlock_irqrestore(&hwp_notify_lock, flags);
++ raw_spin_unlock_irqrestore(&hwp_notify_lock, flags);
+
+ /* wrmsrl_on_cpu has to be outside spinlock as this can result in IPC */
+ wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x01);
+@@ -3136,10 +3136,10 @@ static void intel_pstate_driver_cleanup(void)
+ if (intel_pstate_driver == &intel_pstate)
+ intel_pstate_clear_update_util_hook(cpu);
+
+- spin_lock(&hwp_notify_lock);
++ raw_spin_lock(&hwp_notify_lock);
+ kfree(all_cpu_data[cpu]);
+ WRITE_ONCE(all_cpu_data[cpu], NULL);
+- spin_unlock(&hwp_notify_lock);
++ raw_spin_unlock(&hwp_notify_lock);
+ }
+ }
+ cpus_read_unlock();
+--
+2.43.0
+
--- /dev/null
+From 4412a727ca15c4487cf841c233a737f74df89f09 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Sun, 15 Sep 2024 14:28:37 -0500
+Subject: drm/amd/display: Allow backlight to go below
+ `AMDGPU_DM_DEFAULT_MIN_BACKLIGHT`
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Mario Limonciello <mario.limonciello@amd.com>
+
+[ Upstream commit 87d749a6aab73d8069d0345afaa98297816cb220 ]
+
+The issue with panel power savings compatibility below
+`AMDGPU_DM_DEFAULT_MIN_BACKLIGHT` happens at
+`AMDGPU_DM_DEFAULT_MIN_BACKLIGHT` as well.
+
+That issue will be fixed separately, so don't prevent the backlight
+brightness from going that low.
+
+Cc: Harry Wentland <harry.wentland@amd.com>
+Cc: Thomas Weißschuh <linux@weissschuh.net>
+Link: https://lore.kernel.org/amd-gfx/be04226a-a9e3-4a45-a83b-6d263c6557d8@t-8ch.de/T/#m400dee4e2fc61fe9470334d20a7c8c89c9aef44f
+Reviewed-by: Harry Wentland <harry.wentland@amd.com>
+Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+index 3636872429d19..a3f17c572bf06 100644
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+@@ -4064,7 +4064,7 @@ static void amdgpu_dm_update_backlight_caps(struct amdgpu_display_manager *dm,
+ int spread = caps.max_input_signal - caps.min_input_signal;
+
+ if (caps.max_input_signal > AMDGPU_DM_DEFAULT_MAX_BACKLIGHT ||
+- caps.min_input_signal < AMDGPU_DM_DEFAULT_MIN_BACKLIGHT ||
++ caps.min_input_signal < 0 ||
+ spread > AMDGPU_DM_DEFAULT_MAX_BACKLIGHT ||
+ spread < AMDGPU_DM_MIN_SPREAD) {
+ DRM_DEBUG_KMS("DM: Invalid backlight caps: min=%d, max=%d\n",
+--
+2.43.0
+
--- /dev/null
+From d24ccf1e2ce7475dcd16e7a0958701575f501240 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 12 Aug 2024 10:43:02 +0530
+Subject: dt-bindings: clock: qcom: Add GPLL9 support on gcc-sc8180x
+
+From: Satya Priya Kakitapalli <quic_skakitap@quicinc.com>
+
+[ Upstream commit 648b4bde0aca2980ebc0b90cdfbb80d222370c3d ]
+
+Add the missing GPLL9 which is required for the gcc sdcc2 clock.
+
+Fixes: 0fadcdfdcf57 ("dt-bindings: clock: Add SC8180x GCC binding")
+Cc: stable@vger.kernel.org
+Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+Signed-off-by: Satya Priya Kakitapalli <quic_skakitap@quicinc.com>
+Link: https://lore.kernel.org/r/20240812-gcc-sc8180x-fixes-v2-2-8b3eaa5fb856@quicinc.com
+Signed-off-by: Bjorn Andersson <andersson@kernel.org>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ include/dt-bindings/clock/qcom,gcc-sc8180x.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/include/dt-bindings/clock/qcom,gcc-sc8180x.h b/include/dt-bindings/clock/qcom,gcc-sc8180x.h
+index 90c6e021a0356..2569f874fe13c 100644
+--- a/include/dt-bindings/clock/qcom,gcc-sc8180x.h
++++ b/include/dt-bindings/clock/qcom,gcc-sc8180x.h
+@@ -248,6 +248,7 @@
+ #define GCC_USB3_SEC_CLKREF_CLK 238
+ #define GCC_UFS_MEM_CLKREF_EN 239
+ #define GCC_UFS_CARD_CLKREF_EN 240
++#define GPLL9 241
+
+ #define GCC_EMAC_BCR 0
+ #define GCC_GPU_BCR 1
+--
+2.43.0
+
--- /dev/null
+From f704a2be34d9edf3ac7b0ca9f646bd39fd21ecef Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Wed, 31 Jan 2024 12:37:26 +0530
+Subject: dt-bindings: clock: qcom: Add missing UFS QREF clocks
+
+From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+[ Upstream commit 26447dad8119fd084d7c6f167c3026700b701666 ]
+
+Add missing QREF clocks for UFS MEM and UFS CARD controllers.
+
+Fixes: 0fadcdfdcf57 ("dt-bindings: clock: Add SC8180x GCC binding")
+Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+Link: https://lore.kernel.org/r/20240131-ufs-phy-clock-v3-3-58a49d2f4605@linaro.org
+Signed-off-by: Bjorn Andersson <andersson@kernel.org>
+Stable-dep-of: 648b4bde0aca ("dt-bindings: clock: qcom: Add GPLL9 support on gcc-sc8180x")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ include/dt-bindings/clock/qcom,gcc-sc8180x.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/include/dt-bindings/clock/qcom,gcc-sc8180x.h b/include/dt-bindings/clock/qcom,gcc-sc8180x.h
+index e893415ae13d0..90c6e021a0356 100644
+--- a/include/dt-bindings/clock/qcom,gcc-sc8180x.h
++++ b/include/dt-bindings/clock/qcom,gcc-sc8180x.h
+@@ -246,6 +246,8 @@
+ #define GCC_PCIE_3_CLKREF_CLK 236
+ #define GCC_USB3_PRIM_CLKREF_CLK 237
+ #define GCC_USB3_SEC_CLKREF_CLK 238
++#define GCC_UFS_MEM_CLKREF_EN 239
++#define GCC_UFS_CARD_CLKREF_EN 240
+
+ #define GCC_EMAC_BCR 0
+ #define GCC_GPU_BCR 1
+--
+2.43.0
+
--- /dev/null
+From b0dcbd43674eae6796c28e524d86431cbbe2ee09 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Thu, 15 Aug 2024 21:44:50 +0200
+Subject: i2c: core: Lock address during client device instantiation
+
+From: Heiner Kallweit <hkallweit1@gmail.com>
+
+[ Upstream commit 8d3cefaf659265aa82b0373a563fdb9d16a2b947 ]
+
+Krzysztof reported an issue [0] which is caused by parallel attempts to
+instantiate the same I2C client device. This can happen if driver
+supports auto-detection, but certain devices are also instantiated
+explicitly.
+The original change isn't actually wrong, it just revealed that I2C core
+isn't prepared yet to handle this scenario.
+Calls to i2c_new_client_device() can be nested, therefore we can't use a
+simple mutex here. Parallel instantiation of devices at different addresses
+is ok, so we just have to prevent parallel instantiation at the same address.
+We can use a bitmap with one bit per 7-bit I2C client address, and atomic
+bit operations to set/check/clear bits.
+Now a parallel attempt to instantiate a device at the same address will
+result in -EBUSY being returned, avoiding the "sysfs: cannot create duplicate
+filename" splash.
+
+Note: This patch version includes small cosmetic changes to the Tested-by
+ version, only functional change is that address locking is supported
+ for slave addresses too.
+
+[0] https://lore.kernel.org/linux-i2c/9479fe4e-eb0c-407e-84c0-bd60c15baf74@ans.pl/T/#m12706546e8e2414d8f1a0dc61c53393f731685cc
+
+Fixes: caba40ec3531 ("eeprom: at24: Probe for DDR3 thermal sensor in the SPD case")
+Cc: stable@vger.kernel.org
+Tested-by: Krzysztof Piotr Oledzki <ole@ans.pl>
+Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
+Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/i2c/i2c-core-base.c | 28 ++++++++++++++++++++++++++++
+ include/linux/i2c.h | 3 +++
+ 2 files changed, 31 insertions(+)
+
+diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
+index 9d918a7dfddae..943f0021d6a2c 100644
+--- a/drivers/i2c/i2c-core-base.c
++++ b/drivers/i2c/i2c-core-base.c
+@@ -915,6 +915,27 @@ int i2c_dev_irq_from_resources(const struct resource *resources,
+ return 0;
+ }
+
++/*
++ * Serialize device instantiation in case it can be instantiated explicitly
++ * and by auto-detection
++ */
++static int i2c_lock_addr(struct i2c_adapter *adap, unsigned short addr,
++ unsigned short flags)
++{
++ if (!(flags & I2C_CLIENT_TEN) &&
++ test_and_set_bit(addr, adap->addrs_in_instantiation))
++ return -EBUSY;
++
++ return 0;
++}
++
++static void i2c_unlock_addr(struct i2c_adapter *adap, unsigned short addr,
++ unsigned short flags)
++{
++ if (!(flags & I2C_CLIENT_TEN))
++ clear_bit(addr, adap->addrs_in_instantiation);
++}
++
+ /**
+ * i2c_new_client_device - instantiate an i2c device
+ * @adap: the adapter managing the device
+@@ -962,6 +983,10 @@ i2c_new_client_device(struct i2c_adapter *adap, struct i2c_board_info const *inf
+ goto out_err_silent;
+ }
+
++ status = i2c_lock_addr(adap, client->addr, client->flags);
++ if (status)
++ goto out_err_silent;
++
+ /* Check for address business */
+ status = i2c_check_addr_busy(adap, i2c_encode_flags_to_addr(client));
+ if (status)
+@@ -993,6 +1018,8 @@ i2c_new_client_device(struct i2c_adapter *adap, struct i2c_board_info const *inf
+ dev_dbg(&adap->dev, "client [%s] registered with bus id %s\n",
+ client->name, dev_name(&client->dev));
+
++ i2c_unlock_addr(adap, client->addr, client->flags);
++
+ return client;
+
+ out_remove_swnode:
+@@ -1004,6 +1031,7 @@ i2c_new_client_device(struct i2c_adapter *adap, struct i2c_board_info const *inf
+ dev_err(&adap->dev,
+ "Failed to register i2c client %s at 0x%02x (%d)\n",
+ client->name, client->addr, status);
++ i2c_unlock_addr(adap, client->addr, client->flags);
+ out_err_silent:
+ if (need_put)
+ put_device(&client->dev);
+diff --git a/include/linux/i2c.h b/include/linux/i2c.h
+index 033de64d09bba..a3166100f0cce 100644
+--- a/include/linux/i2c.h
++++ b/include/linux/i2c.h
+@@ -748,6 +748,9 @@ struct i2c_adapter {
+ struct regulator *bus_regulator;
+
+ struct dentry *debugfs;
++
++ /* 7bit address space */
++ DECLARE_BITMAP(addrs_in_instantiation, 1 << 7);
+ };
+ #define to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev)
+
+--
+2.43.0
+
--- /dev/null
+From 9aa01d4ec68b0fb752f0491873c5f1b941566b92 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Sun, 12 Nov 2023 17:54:41 -0500
+Subject: i2c: create debugfs entry per adapter
+
+From: Wolfram Sang <wsa+renesas@sang-engineering.com>
+
+[ Upstream commit 73febd775bdbdb98c81255ff85773ac410ded5c4 ]
+
+Two drivers already implement custom debugfs handling for their
+i2c_adapter and more will come. So, let the core create a debugfs
+directory per adapter and pass that to drivers for their debugfs files.
+
+Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
+Signed-off-by: Wolfram Sang <wsa@kernel.org>
+Stable-dep-of: 8d3cefaf6592 ("i2c: core: Lock address during client device instantiation")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/i2c/i2c-core-base.c | 11 +++++++++++
+ include/linux/i2c.h | 2 ++
+ 2 files changed, 13 insertions(+)
+
+diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
+index 1e873ff0a624d..9d918a7dfddae 100644
+--- a/drivers/i2c/i2c-core-base.c
++++ b/drivers/i2c/i2c-core-base.c
+@@ -16,6 +16,7 @@
+ #include <linux/acpi.h>
+ #include <linux/clk/clk-conf.h>
+ #include <linux/completion.h>
++#include <linux/debugfs.h>
+ #include <linux/delay.h>
+ #include <linux/err.h>
+ #include <linux/errno.h>
+@@ -67,6 +68,8 @@ static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver);
+ static DEFINE_STATIC_KEY_FALSE(i2c_trace_msg_key);
+ static bool is_registered;
+
++static struct dentry *i2c_debugfs_root;
++
+ int i2c_transfer_trace_reg(void)
+ {
+ static_branch_inc(&i2c_trace_msg_key);
+@@ -1523,6 +1526,8 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
+ goto out_list;
+ }
+
++ adap->debugfs = debugfs_create_dir(dev_name(&adap->dev), i2c_debugfs_root);
++
+ res = i2c_setup_smbus_alert(adap);
+ if (res)
+ goto out_reg;
+@@ -1562,6 +1567,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
+ return 0;
+
+ out_reg:
++ debugfs_remove_recursive(adap->debugfs);
+ init_completion(&adap->dev_released);
+ device_unregister(&adap->dev);
+ wait_for_completion(&adap->dev_released);
+@@ -1763,6 +1769,8 @@ void i2c_del_adapter(struct i2c_adapter *adap)
+
+ i2c_host_notify_irq_teardown(adap);
+
++ debugfs_remove_recursive(adap->debugfs);
++
+ /* wait until all references to the device are gone
+ *
+ * FIXME: This is old code and should ideally be replaced by an
+@@ -2060,6 +2068,8 @@ static int __init i2c_init(void)
+
+ is_registered = true;
+
++ i2c_debugfs_root = debugfs_create_dir("i2c", NULL);
++
+ #ifdef CONFIG_I2C_COMPAT
+ i2c_adapter_compat_class = class_compat_register("i2c-adapter");
+ if (!i2c_adapter_compat_class) {
+@@ -2098,6 +2108,7 @@ static void __exit i2c_exit(void)
+ #ifdef CONFIG_I2C_COMPAT
+ class_compat_unregister(i2c_adapter_compat_class);
+ #endif
++ debugfs_remove_recursive(i2c_debugfs_root);
+ bus_unregister(&i2c_bus_type);
+ tracepoint_synchronize_unregister();
+ }
+diff --git a/include/linux/i2c.h b/include/linux/i2c.h
+index 32cf5708d5a5b..033de64d09bba 100644
+--- a/include/linux/i2c.h
++++ b/include/linux/i2c.h
+@@ -746,6 +746,8 @@ struct i2c_adapter {
+
+ struct irq_domain *host_notify_domain;
+ struct regulator *bus_regulator;
++
++ struct dentry *debugfs;
+ };
+ #define to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev)
+
+--
+2.43.0
+
--- /dev/null
+From 57c15c027cad8dd14a8916fa165abb4341459f82 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Thu, 12 Sep 2024 12:46:31 +0200
+Subject: i2c: synquacer: Deal with optional PCLK correctly
+
+From: Ard Biesheuvel <ardb@kernel.org>
+
+[ Upstream commit f2990f8630531a99cad4dc5c44cb2a11ded42492 ]
+
+ACPI boot does not provide clocks and regulators, but instead, provides
+the PCLK rate directly, and enables the clock in firmware. So deal
+gracefully with this.
+
+Fixes: 55750148e559 ("i2c: synquacer: Fix an error handling path in synquacer_i2c_probe()")
+Cc: stable@vger.kernel.org # v6.10+
+Cc: Andi Shyti <andi.shyti@kernel.org>
+Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
+Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
+Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/i2c/busses/i2c-synquacer.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/i2c/busses/i2c-synquacer.c b/drivers/i2c/busses/i2c-synquacer.c
+index e774b9f499b63..9bb69a8ab6582 100644
+--- a/drivers/i2c/busses/i2c-synquacer.c
++++ b/drivers/i2c/busses/i2c-synquacer.c
+@@ -550,12 +550,13 @@ static int synquacer_i2c_probe(struct platform_device *pdev)
+ device_property_read_u32(&pdev->dev, "socionext,pclk-rate",
+ &i2c->pclkrate);
+
+- pclk = devm_clk_get_enabled(&pdev->dev, "pclk");
++ pclk = devm_clk_get_optional_enabled(&pdev->dev, "pclk");
+ if (IS_ERR(pclk))
+ return dev_err_probe(&pdev->dev, PTR_ERR(pclk),
+ "failed to get and enable clock\n");
+
+- i2c->pclkrate = clk_get_rate(pclk);
++ if (pclk)
++ i2c->pclkrate = clk_get_rate(pclk);
+
+ if (i2c->pclkrate < SYNQUACER_I2C_MIN_CLK_RATE ||
+ i2c->pclkrate > SYNQUACER_I2C_MAX_CLK_RATE)
+--
+2.43.0
+
--- /dev/null
+From fc6f41807cd7c6bc8cc6889e28b4f5a3afefb43d Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Sat, 6 Jan 2024 13:48:25 +0100
+Subject: i2c: synquacer: Remove a clk reference from struct synquacer_i2c
+
+From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
+
+[ Upstream commit e6722ea6b9ed731f7392277d76ca912dfffca7ee ]
+
+'pclk' is only used locally in the probe. Remove it from the
+'synquacer_i2c' structure.
+
+Also remove a useless debug message.
+
+Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
+Acked-by: Ard Biesheuvel <ardb@kernel.org>
+Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
+Stable-dep-of: f2990f863053 ("i2c: synquacer: Deal with optional PCLK correctly")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/i2c/busses/i2c-synquacer.c | 11 +++++------
+ 1 file changed, 5 insertions(+), 6 deletions(-)
+
+diff --git a/drivers/i2c/busses/i2c-synquacer.c b/drivers/i2c/busses/i2c-synquacer.c
+index a73f5bb9a1645..e774b9f499b63 100644
+--- a/drivers/i2c/busses/i2c-synquacer.c
++++ b/drivers/i2c/busses/i2c-synquacer.c
+@@ -138,7 +138,6 @@ struct synquacer_i2c {
+ int irq;
+ struct device *dev;
+ void __iomem *base;
+- struct clk *pclk;
+ u32 pclkrate;
+ u32 speed_khz;
+ u32 timeout_ms;
+@@ -535,6 +534,7 @@ static const struct i2c_adapter synquacer_i2c_ops = {
+ static int synquacer_i2c_probe(struct platform_device *pdev)
+ {
+ struct synquacer_i2c *i2c;
++ struct clk *pclk;
+ u32 bus_speed;
+ int ret;
+
+@@ -550,13 +550,12 @@ static int synquacer_i2c_probe(struct platform_device *pdev)
+ device_property_read_u32(&pdev->dev, "socionext,pclk-rate",
+ &i2c->pclkrate);
+
+- i2c->pclk = devm_clk_get_enabled(&pdev->dev, "pclk");
+- if (IS_ERR(i2c->pclk))
+- return dev_err_probe(&pdev->dev, PTR_ERR(i2c->pclk),
++ pclk = devm_clk_get_enabled(&pdev->dev, "pclk");
++ if (IS_ERR(pclk))
++ return dev_err_probe(&pdev->dev, PTR_ERR(pclk),
+ "failed to get and enable clock\n");
+
+- dev_dbg(&pdev->dev, "clock source %p\n", i2c->pclk);
+- i2c->pclkrate = clk_get_rate(i2c->pclk);
++ i2c->pclkrate = clk_get_rate(pclk);
+
+ if (i2c->pclkrate < SYNQUACER_I2C_MIN_CLK_RATE ||
+ i2c->pclkrate > SYNQUACER_I2C_MAX_CLK_RATE)
+--
+2.43.0
+
--- /dev/null
+From 399b83593538517e48cdd1e53b8ca0924cca50ce Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Sun, 22 Oct 2023 19:22:20 +0200
+Subject: iio: pressure: bmp280: Allow multiple chips id per family of devices
+
+From: Angel Iglesias <ang.iglesiasg@gmail.com>
+
+[ Upstream commit 33564435c8084ff29837c9ed9bb9574ec957751d ]
+
+Improve device detection in certain chip families known to have
+various chip IDs. When no ID matches, give a warning but follow
+along what device said on the firmware side and try to configure
+it.
+
+Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com>
+Link: https://lore.kernel.org/r/eade22d11e9de4405ea19fdaa5a8249143ae94df.1697994521.git.ang.iglesiasg@gmail.com
+Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
+Stable-dep-of: b9065b0250e1 ("iio: pressure: bmp280: Fix regmap for BMP280 device")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/iio/pressure/bmp280-core.c | 35 ++++++++++++++++++++++--------
+ drivers/iio/pressure/bmp280.h | 3 ++-
+ 2 files changed, 28 insertions(+), 10 deletions(-)
+
+diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
+index a65630d5742f0..ac72b175ffcc1 100644
+--- a/drivers/iio/pressure/bmp280-core.c
++++ b/drivers/iio/pressure/bmp280-core.c
+@@ -794,10 +794,12 @@ static int bmp280_chip_config(struct bmp280_data *data)
+ }
+
+ static const int bmp280_oversampling_avail[] = { 1, 2, 4, 8, 16 };
++static const u8 bmp280_chip_ids[] = { BMP280_CHIP_ID };
+
+ const struct bmp280_chip_info bmp280_chip_info = {
+ .id_reg = BMP280_REG_ID,
+- .chip_id = BMP280_CHIP_ID,
++ .chip_id = bmp280_chip_ids,
++ .num_chip_id = ARRAY_SIZE(bmp280_chip_ids),
+ .regmap_config = &bmp280_regmap_config,
+ .start_up_time = 2000,
+ .channels = bmp280_channels,
+@@ -846,9 +848,12 @@ static int bme280_chip_config(struct bmp280_data *data)
+ return bmp280_chip_config(data);
+ }
+
++static const u8 bme280_chip_ids[] = { BME280_CHIP_ID };
++
+ const struct bmp280_chip_info bme280_chip_info = {
+ .id_reg = BMP280_REG_ID,
+- .chip_id = BME280_CHIP_ID,
++ .chip_id = bme280_chip_ids,
++ .num_chip_id = ARRAY_SIZE(bme280_chip_ids),
+ .regmap_config = &bmp280_regmap_config,
+ .start_up_time = 2000,
+ .channels = bmp280_channels,
+@@ -1220,10 +1225,12 @@ static int bmp380_chip_config(struct bmp280_data *data)
+
+ static const int bmp380_oversampling_avail[] = { 1, 2, 4, 8, 16, 32 };
+ static const int bmp380_iir_filter_coeffs_avail[] = { 1, 2, 4, 8, 16, 32, 64, 128};
++static const u8 bmp380_chip_ids[] = { BMP380_CHIP_ID };
+
+ const struct bmp280_chip_info bmp380_chip_info = {
+ .id_reg = BMP380_REG_ID,
+- .chip_id = BMP380_CHIP_ID,
++ .chip_id = bmp380_chip_ids,
++ .num_chip_id = ARRAY_SIZE(bmp380_chip_ids),
+ .regmap_config = &bmp380_regmap_config,
+ .start_up_time = 2000,
+ .channels = bmp380_channels,
+@@ -1720,10 +1727,12 @@ static int bmp580_chip_config(struct bmp280_data *data)
+ }
+
+ static const int bmp580_oversampling_avail[] = { 1, 2, 4, 8, 16, 32, 64, 128 };
++static const u8 bmp580_chip_ids[] = { BMP580_CHIP_ID, BMP580_CHIP_ID_ALT };
+
+ const struct bmp280_chip_info bmp580_chip_info = {
+ .id_reg = BMP580_REG_CHIP_ID,
+- .chip_id = BMP580_CHIP_ID,
++ .chip_id = bmp580_chip_ids,
++ .num_chip_id = ARRAY_SIZE(bmp580_chip_ids),
+ .regmap_config = &bmp580_regmap_config,
+ .start_up_time = 2000,
+ .channels = bmp380_channels,
+@@ -1983,10 +1992,12 @@ static int bmp180_chip_config(struct bmp280_data *data)
+
+ static const int bmp180_oversampling_temp_avail[] = { 1 };
+ static const int bmp180_oversampling_press_avail[] = { 1, 2, 4, 8 };
++static const u8 bmp180_chip_ids[] = { BMP180_CHIP_ID };
+
+ const struct bmp280_chip_info bmp180_chip_info = {
+ .id_reg = BMP280_REG_ID,
+- .chip_id = BMP180_CHIP_ID,
++ .chip_id = bmp180_chip_ids,
++ .num_chip_id = ARRAY_SIZE(bmp180_chip_ids),
+ .regmap_config = &bmp180_regmap_config,
+ .start_up_time = 2000,
+ .channels = bmp280_channels,
+@@ -2077,6 +2088,7 @@ int bmp280_common_probe(struct device *dev,
+ struct bmp280_data *data;
+ struct gpio_desc *gpiod;
+ unsigned int chip_id;
++ unsigned int i;
+ int ret;
+
+ indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
+@@ -2142,12 +2154,17 @@ int bmp280_common_probe(struct device *dev,
+ ret = regmap_read(regmap, data->chip_info->id_reg, &chip_id);
+ if (ret < 0)
+ return ret;
+- if (chip_id != data->chip_info->chip_id) {
+- dev_err(dev, "bad chip id: expected %x got %x\n",
+- data->chip_info->chip_id, chip_id);
+- return -EINVAL;
++
++ for (i = 0; i < data->chip_info->num_chip_id; i++) {
++ if (chip_id == data->chip_info->chip_id[i]) {
++ dev_info(dev, "0x%x is a known chip id for %s\n", chip_id, name);
++ break;
++ }
+ }
+
++ if (i == data->chip_info->num_chip_id)
++ dev_warn(dev, "bad chip id: 0x%x is not a known chip id\n", chip_id);
++
+ if (data->chip_info->preinit) {
+ ret = data->chip_info->preinit(data);
+ if (ret)
+diff --git a/drivers/iio/pressure/bmp280.h b/drivers/iio/pressure/bmp280.h
+index 9d9f4ce2baa6e..a44ea33221635 100644
+--- a/drivers/iio/pressure/bmp280.h
++++ b/drivers/iio/pressure/bmp280.h
+@@ -418,7 +418,8 @@ struct bmp280_data {
+
+ struct bmp280_chip_info {
+ unsigned int id_reg;
+- const unsigned int chip_id;
++ const u8 *chip_id;
++ int num_chip_id;
+
+ const struct regmap_config *regmap_config;
+
+--
+2.43.0
+
--- /dev/null
+From 66c0d6e31094c10458bed2eee0926c8682e61f60 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Thu, 11 Jul 2024 23:15:49 +0200
+Subject: iio: pressure: bmp280: Fix regmap for BMP280 device
+
+From: Vasileios Amoiridis <vassilisamir@gmail.com>
+
+[ Upstream commit b9065b0250e1705935445ede0a18c1850afe7b75 ]
+
+Up to now, the BMP280 device is using the regmap of the BME280 which
+has registers that exist only in the BME280 device.
+
+Fixes: 14e8015f8569 ("iio: pressure: bmp280: split driver in logical parts")
+Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
+Link: https://patch.msgid.link/20240711211558.106327-2-vassilisamir@gmail.com
+Cc: <Stable@vger.kernel.org>
+Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/iio/pressure/bmp280-core.c | 2 +-
+ drivers/iio/pressure/bmp280-regmap.c | 45 ++++++++++++++++++++++++++--
+ drivers/iio/pressure/bmp280.h | 1 +
+ 3 files changed, 44 insertions(+), 4 deletions(-)
+
+diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
+index 8f70fd72f132a..3ba718b11c464 100644
+--- a/drivers/iio/pressure/bmp280-core.c
++++ b/drivers/iio/pressure/bmp280-core.c
+@@ -852,7 +852,7 @@ const struct bmp280_chip_info bme280_chip_info = {
+ .id_reg = BMP280_REG_ID,
+ .chip_id = bme280_chip_ids,
+ .num_chip_id = ARRAY_SIZE(bme280_chip_ids),
+- .regmap_config = &bmp280_regmap_config,
++ .regmap_config = &bme280_regmap_config,
+ .start_up_time = 2000,
+ .channels = bmp280_channels,
+ .num_channels = 3,
+diff --git a/drivers/iio/pressure/bmp280-regmap.c b/drivers/iio/pressure/bmp280-regmap.c
+index fa52839474b18..d27d68edd9065 100644
+--- a/drivers/iio/pressure/bmp280-regmap.c
++++ b/drivers/iio/pressure/bmp280-regmap.c
+@@ -41,7 +41,7 @@ const struct regmap_config bmp180_regmap_config = {
+ };
+ EXPORT_SYMBOL_NS(bmp180_regmap_config, IIO_BMP280);
+
+-static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
++static bool bme280_is_writeable_reg(struct device *dev, unsigned int reg)
+ {
+ switch (reg) {
+ case BMP280_REG_CONFIG:
+@@ -54,7 +54,35 @@ static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
+ }
+ }
+
++static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
++{
++ switch (reg) {
++ case BMP280_REG_CONFIG:
++ case BMP280_REG_CTRL_MEAS:
++ case BMP280_REG_RESET:
++ return true;
++ default:
++ return false;
++ }
++}
++
+ static bool bmp280_is_volatile_reg(struct device *dev, unsigned int reg)
++{
++ switch (reg) {
++ case BMP280_REG_TEMP_XLSB:
++ case BMP280_REG_TEMP_LSB:
++ case BMP280_REG_TEMP_MSB:
++ case BMP280_REG_PRESS_XLSB:
++ case BMP280_REG_PRESS_LSB:
++ case BMP280_REG_PRESS_MSB:
++ case BMP280_REG_STATUS:
++ return true;
++ default:
++ return false;
++ }
++}
++
++static bool bme280_is_volatile_reg(struct device *dev, unsigned int reg)
+ {
+ switch (reg) {
+ case BME280_REG_HUMIDITY_LSB:
+@@ -71,7 +99,6 @@ static bool bmp280_is_volatile_reg(struct device *dev, unsigned int reg)
+ return false;
+ }
+ }
+-
+ static bool bmp380_is_writeable_reg(struct device *dev, unsigned int reg)
+ {
+ switch (reg) {
+@@ -167,7 +194,7 @@ const struct regmap_config bmp280_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+- .max_register = BME280_REG_HUMIDITY_LSB,
++ .max_register = BMP280_REG_TEMP_XLSB,
+ .cache_type = REGCACHE_RBTREE,
+
+ .writeable_reg = bmp280_is_writeable_reg,
+@@ -175,6 +202,18 @@ const struct regmap_config bmp280_regmap_config = {
+ };
+ EXPORT_SYMBOL_NS(bmp280_regmap_config, IIO_BMP280);
+
++const struct regmap_config bme280_regmap_config = {
++ .reg_bits = 8,
++ .val_bits = 8,
++
++ .max_register = BME280_REG_HUMIDITY_LSB,
++ .cache_type = REGCACHE_RBTREE,
++
++ .writeable_reg = bme280_is_writeable_reg,
++ .volatile_reg = bme280_is_volatile_reg,
++};
++EXPORT_SYMBOL_NS(bme280_regmap_config, IIO_BMP280);
++
+ const struct regmap_config bmp380_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+diff --git a/drivers/iio/pressure/bmp280.h b/drivers/iio/pressure/bmp280.h
+index 1a6903a917add..b60e551b7d318 100644
+--- a/drivers/iio/pressure/bmp280.h
++++ b/drivers/iio/pressure/bmp280.h
+@@ -468,6 +468,7 @@ extern const struct bmp280_chip_info bmp580_chip_info;
+ /* Regmap configurations */
+ extern const struct regmap_config bmp180_regmap_config;
+ extern const struct regmap_config bmp280_regmap_config;
++extern const struct regmap_config bme280_regmap_config;
+ extern const struct regmap_config bmp380_regmap_config;
+ extern const struct regmap_config bmp580_regmap_config;
+
+--
+2.43.0
+
--- /dev/null
+From 29b97d5e12a4580ac3af54f98065bc4a03b40b13 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Thu, 11 Jul 2024 23:15:50 +0200
+Subject: iio: pressure: bmp280: Fix waiting time for BMP3xx configuration
+
+From: Vasileios Amoiridis <vassilisamir@gmail.com>
+
+[ Upstream commit 262a6634bcc4f0c1c53d13aa89882909f281a6aa ]
+
+According to the datasheet, both pressure and temperature can go up to
+oversampling x32. With this option, the maximum measurement time is not
+80ms (this is for press x32 and temp x2), but it is 130ms nominal
+(calculated from table 3.9.2) and since most of the maximum values
+are around +15%, it is configured to 150ms.
+
+Fixes: 8d329309184d ("iio: pressure: bmp280: Add support for BMP380 sensor family")
+Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
+Link: https://patch.msgid.link/20240711211558.106327-3-vassilisamir@gmail.com
+Cc: <Stable@vger.kernel.org>
+Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/iio/pressure/bmp280-core.c | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
+index 3ba718b11c464..84f6b333c9195 100644
+--- a/drivers/iio/pressure/bmp280-core.c
++++ b/drivers/iio/pressure/bmp280-core.c
+@@ -1203,10 +1203,11 @@ static int bmp380_chip_config(struct bmp280_data *data)
+ }
+ /*
+ * Waits for measurement before checking configuration error
+- * flag. Selected longest measure time indicated in
+- * section 3.9.1 in the datasheet.
++ * flag. Selected longest measurement time, calculated from
++ * formula in datasheet section 3.9.2 with an offset of ~+15%
++ * as it seen as well in table 3.9.1.
+ */
+- msleep(80);
++ msleep(150);
+
+ /* Check config error flag */
+ ret = regmap_read(data->regmap, BMP380_REG_ERROR, &tmp);
+--
+2.43.0
+
--- /dev/null
+From 042ba03dc0ccd66bc07b06eef215ebf984319d8a Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 29 Apr 2024 21:00:37 +0200
+Subject: iio: pressure: bmp280: Improve indentation and line wrapping
+
+From: Vasileios Amoiridis <vassilisamir@gmail.com>
+
+[ Upstream commit 439ce8961bdd2e925c1f6adc82ce9fe3931e2c08 ]
+
+Fix indentations that are not following the standards, remove
+extra white lines and add missing white lines.
+
+Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
+Link: https://lore.kernel.org/r/20240429190046.24252-2-vassilisamir@gmail.com
+Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
+Stable-dep-of: b9065b0250e1 ("iio: pressure: bmp280: Fix regmap for BMP280 device")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/iio/pressure/bmp280-core.c | 108 ++++++++++++++++-------------
+ drivers/iio/pressure/bmp280-spi.c | 4 +-
+ 2 files changed, 61 insertions(+), 51 deletions(-)
+
+diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
+index ac72b175ffcc1..dac2a4e237929 100644
+--- a/drivers/iio/pressure/bmp280-core.c
++++ b/drivers/iio/pressure/bmp280-core.c
+@@ -51,7 +51,6 @@
+ */
+ enum { AC1, AC2, AC3, AC4, AC5, AC6, B1, B2, MB, MC, MD };
+
+-
+ enum bmp380_odr {
+ BMP380_ODR_200HZ,
+ BMP380_ODR_100HZ,
+@@ -180,18 +179,19 @@ static int bmp280_read_calib(struct bmp280_data *data)
+ struct bmp280_calib *calib = &data->calib.bmp280;
+ int ret;
+
+-
+ /* Read temperature and pressure calibration values. */
+ ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_TEMP_START,
+- data->bmp280_cal_buf, sizeof(data->bmp280_cal_buf));
++ data->bmp280_cal_buf,
++ sizeof(data->bmp280_cal_buf));
+ if (ret < 0) {
+ dev_err(data->dev,
+- "failed to read temperature and pressure calibration parameters\n");
++ "failed to read calibration parameters\n");
+ return ret;
+ }
+
+- /* Toss the temperature and pressure calibration data into the entropy pool */
+- add_device_randomness(data->bmp280_cal_buf, sizeof(data->bmp280_cal_buf));
++ /* Toss calibration data into the entropy pool */
++ add_device_randomness(data->bmp280_cal_buf,
++ sizeof(data->bmp280_cal_buf));
+
+ /* Parse temperature calibration values. */
+ calib->T1 = le16_to_cpu(data->bmp280_cal_buf[T1]);
+@@ -222,7 +222,7 @@ static int bme280_read_calib(struct bmp280_data *data)
+ /* Load shared calibration params with bmp280 first */
+ ret = bmp280_read_calib(data);
+ if (ret < 0) {
+- dev_err(dev, "failed to read common bmp280 calibration parameters\n");
++ dev_err(dev, "failed to read calibration parameters\n");
+ return ret;
+ }
+
+@@ -282,6 +282,7 @@ static int bme280_read_calib(struct bmp280_data *data)
+
+ return 0;
+ }
++
+ /*
+ * Returns humidity in percent, resolution is 0.01 percent. Output value of
+ * "47445" represents 47445/1024 = 46.333 %RH.
+@@ -304,7 +305,7 @@ static u32 bmp280_compensate_humidity(struct bmp280_data *data,
+ var = clamp_val(var, 0, 419430400);
+
+ return var >> 12;
+-};
++}
+
+ /*
+ * Returns temperature in DegC, resolution is 0.01 DegC. Output value of
+@@ -537,7 +538,7 @@ static int bmp280_read_raw(struct iio_dev *indio_dev,
+ }
+
+ static int bmp280_write_oversampling_ratio_humid(struct bmp280_data *data,
+- int val)
++ int val)
+ {
+ const int *avail = data->chip_info->oversampling_humid_avail;
+ const int n = data->chip_info->num_oversampling_humid_avail;
+@@ -562,7 +563,7 @@ static int bmp280_write_oversampling_ratio_humid(struct bmp280_data *data,
+ }
+
+ static int bmp280_write_oversampling_ratio_temp(struct bmp280_data *data,
+- int val)
++ int val)
+ {
+ const int *avail = data->chip_info->oversampling_temp_avail;
+ const int n = data->chip_info->num_oversampling_temp_avail;
+@@ -587,7 +588,7 @@ static int bmp280_write_oversampling_ratio_temp(struct bmp280_data *data,
+ }
+
+ static int bmp280_write_oversampling_ratio_press(struct bmp280_data *data,
+- int val)
++ int val)
+ {
+ const int *avail = data->chip_info->oversampling_press_avail;
+ const int n = data->chip_info->num_oversampling_press_avail;
+@@ -771,13 +772,12 @@ static int bmp280_chip_config(struct bmp280_data *data)
+ int ret;
+
+ ret = regmap_write_bits(data->regmap, BMP280_REG_CTRL_MEAS,
+- BMP280_OSRS_TEMP_MASK |
+- BMP280_OSRS_PRESS_MASK |
+- BMP280_MODE_MASK,
+- osrs | BMP280_MODE_NORMAL);
++ BMP280_OSRS_TEMP_MASK |
++ BMP280_OSRS_PRESS_MASK |
++ BMP280_MODE_MASK,
++ osrs | BMP280_MODE_NORMAL);
+ if (ret < 0) {
+- dev_err(data->dev,
+- "failed to write ctrl_meas register\n");
++ dev_err(data->dev, "failed to write ctrl_meas register\n");
+ return ret;
+ }
+
+@@ -785,8 +785,7 @@ static int bmp280_chip_config(struct bmp280_data *data)
+ BMP280_FILTER_MASK,
+ BMP280_FILTER_4X);
+ if (ret < 0) {
+- dev_err(data->dev,
+- "failed to write config register\n");
++ dev_err(data->dev, "failed to write config register\n");
+ return ret;
+ }
+
+@@ -925,8 +924,8 @@ static int bmp380_cmd(struct bmp280_data *data, u8 cmd)
+ }
+
+ /*
+- * Returns temperature in Celsius degrees, resolution is 0.01º C. Output value of
+- * "5123" equals 51.2º C. t_fine carries fine temperature as global value.
++ * Returns temperature in Celsius degrees, resolution is 0.01º C. Output value
++ * of "5123" equals 51.2º C. t_fine carries fine temperature as global value.
+ *
+ * Taken from datasheet, Section Appendix 9, "Compensation formula" and repo
+ * https://github.com/BoschSensortec/BMP3-Sensor-API.
+@@ -1068,7 +1067,8 @@ static int bmp380_read_calib(struct bmp280_data *data)
+
+ /* Read temperature and pressure calibration data */
+ ret = regmap_bulk_read(data->regmap, BMP380_REG_CALIB_TEMP_START,
+- data->bmp380_cal_buf, sizeof(data->bmp380_cal_buf));
++ data->bmp380_cal_buf,
++ sizeof(data->bmp380_cal_buf));
+ if (ret) {
+ dev_err(data->dev,
+ "failed to read temperature calibration parameters\n");
+@@ -1076,7 +1076,8 @@ static int bmp380_read_calib(struct bmp280_data *data)
+ }
+
+ /* Toss the temperature calibration data into the entropy pool */
+- add_device_randomness(data->bmp380_cal_buf, sizeof(data->bmp380_cal_buf));
++ add_device_randomness(data->bmp380_cal_buf,
++ sizeof(data->bmp380_cal_buf));
+
+ /* Parse calibration values */
+ calib->T1 = get_unaligned_le16(&data->bmp380_cal_buf[BMP380_T1]);
+@@ -1158,7 +1159,8 @@ static int bmp380_chip_config(struct bmp280_data *data)
+
+ /* Configure output data rate */
+ ret = regmap_update_bits_check(data->regmap, BMP380_REG_ODR,
+- BMP380_ODRS_MASK, data->sampling_freq, &aux);
++ BMP380_ODRS_MASK, data->sampling_freq,
++ &aux);
+ if (ret) {
+ dev_err(data->dev, "failed to write ODR selection register\n");
+ return ret;
+@@ -1177,12 +1179,13 @@ static int bmp380_chip_config(struct bmp280_data *data)
+
+ if (change) {
+ /*
+- * The configurations errors are detected on the fly during a measurement
+- * cycle. If the sampling frequency is too low, it's faster to reset
+- * the measurement loop than wait until the next measurement is due.
++ * The configurations errors are detected on the fly during a
++ * measurement cycle. If the sampling frequency is too low, it's
++ * faster to reset the measurement loop than wait until the next
++ * measurement is due.
+ *
+- * Resets sensor measurement loop toggling between sleep and normal
+- * operating modes.
++ * Resets sensor measurement loop toggling between sleep and
++ * normal operating modes.
+ */
+ ret = regmap_write_bits(data->regmap, BMP380_REG_POWER_CONTROL,
+ BMP380_MODE_MASK,
+@@ -1200,22 +1203,21 @@ static int bmp380_chip_config(struct bmp280_data *data)
+ return ret;
+ }
+ /*
+- * Waits for measurement before checking configuration error flag.
+- * Selected longest measure time indicated in section 3.9.1
+- * in the datasheet.
++ * Waits for measurement before checking configuration error
++ * flag. Selected longest measure time indicated in
++ * section 3.9.1 in the datasheet.
+ */
+ msleep(80);
+
+ /* Check config error flag */
+ ret = regmap_read(data->regmap, BMP380_REG_ERROR, &tmp);
+ if (ret) {
+- dev_err(data->dev,
+- "failed to read error register\n");
++ dev_err(data->dev, "failed to read error register\n");
+ return ret;
+ }
+ if (tmp & BMP380_ERR_CONF_MASK) {
+ dev_warn(data->dev,
+- "sensor flagged configuration as incompatible\n");
++ "sensor flagged configuration as incompatible\n");
+ return -EINVAL;
+ }
+ }
+@@ -1315,9 +1317,11 @@ static int bmp580_nvm_operation(struct bmp280_data *data, bool is_write)
+ }
+
+ /* Start NVM operation sequence */
+- ret = regmap_write(data->regmap, BMP580_REG_CMD, BMP580_CMD_NVM_OP_SEQ_0);
++ ret = regmap_write(data->regmap, BMP580_REG_CMD,
++ BMP580_CMD_NVM_OP_SEQ_0);
+ if (ret) {
+- dev_err(data->dev, "failed to send nvm operation's first sequence\n");
++ dev_err(data->dev,
++ "failed to send nvm operation's first sequence\n");
+ return ret;
+ }
+ if (is_write) {
+@@ -1325,7 +1329,8 @@ static int bmp580_nvm_operation(struct bmp280_data *data, bool is_write)
+ ret = regmap_write(data->regmap, BMP580_REG_CMD,
+ BMP580_CMD_NVM_WRITE_SEQ_1);
+ if (ret) {
+- dev_err(data->dev, "failed to send nvm write sequence\n");
++ dev_err(data->dev,
++ "failed to send nvm write sequence\n");
+ return ret;
+ }
+ /* Datasheet says on 4.8.1.2 it takes approximately 10ms */
+@@ -1336,7 +1341,8 @@ static int bmp580_nvm_operation(struct bmp280_data *data, bool is_write)
+ ret = regmap_write(data->regmap, BMP580_REG_CMD,
+ BMP580_CMD_NVM_READ_SEQ_1);
+ if (ret) {
+- dev_err(data->dev, "failed to send nvm read sequence\n");
++ dev_err(data->dev,
++ "failed to send nvm read sequence\n");
+ return ret;
+ }
+ /* Datasheet says on 4.8.1.1 it takes approximately 200us */
+@@ -1499,8 +1505,8 @@ static int bmp580_nvmem_read(void *priv, unsigned int offset, void *val,
+ if (ret)
+ goto exit;
+
+- ret = regmap_bulk_read(data->regmap, BMP580_REG_NVM_DATA_LSB, &data->le16,
+- sizeof(data->le16));
++ ret = regmap_bulk_read(data->regmap, BMP580_REG_NVM_DATA_LSB,
++ &data->le16, sizeof(data->le16));
+ if (ret) {
+ dev_err(data->dev, "error reading nvm data regs\n");
+ goto exit;
+@@ -1544,7 +1550,8 @@ static int bmp580_nvmem_write(void *priv, unsigned int offset, void *val,
+ while (bytes >= sizeof(*buf)) {
+ addr = bmp580_nvmem_addrs[offset / sizeof(*buf)];
+
+- ret = regmap_write(data->regmap, BMP580_REG_NVM_ADDR, BMP580_NVM_PROG_EN |
++ ret = regmap_write(data->regmap, BMP580_REG_NVM_ADDR,
++ BMP580_NVM_PROG_EN |
+ FIELD_PREP(BMP580_NVM_ROW_ADDR_MASK, addr));
+ if (ret) {
+ dev_err(data->dev, "error writing nvm address\n");
+@@ -1552,8 +1559,8 @@ static int bmp580_nvmem_write(void *priv, unsigned int offset, void *val,
+ }
+ data->le16 = cpu_to_le16(*buf++);
+
+- ret = regmap_bulk_write(data->regmap, BMP580_REG_NVM_DATA_LSB, &data->le16,
+- sizeof(data->le16));
++ ret = regmap_bulk_write(data->regmap, BMP580_REG_NVM_DATA_LSB,
++ &data->le16, sizeof(data->le16));
+ if (ret) {
+ dev_err(data->dev, "error writing LSB NVM data regs\n");
+ goto exit;
+@@ -1660,7 +1667,8 @@ static int bmp580_chip_config(struct bmp280_data *data)
+ BMP580_OSR_PRESS_EN;
+
+ ret = regmap_update_bits_check(data->regmap, BMP580_REG_OSR_CONFIG,
+- BMP580_OSR_TEMP_MASK | BMP580_OSR_PRESS_MASK |
++ BMP580_OSR_TEMP_MASK |
++ BMP580_OSR_PRESS_MASK |
+ BMP580_OSR_PRESS_EN,
+ reg_val, &aux);
+ if (ret) {
+@@ -1711,7 +1719,8 @@ static int bmp580_chip_config(struct bmp280_data *data)
+ */
+ ret = regmap_read(data->regmap, BMP580_REG_EFF_OSR, &tmp);
+ if (ret) {
+- dev_err(data->dev, "error reading effective OSR register\n");
++ dev_err(data->dev,
++ "error reading effective OSR register\n");
+ return ret;
+ }
+ if (!(tmp & BMP580_EFF_OSR_VALID_ODR)) {
+@@ -1846,7 +1855,8 @@ static int bmp180_read_calib(struct bmp280_data *data)
+ }
+
+ /* Toss the calibration data into the entropy pool */
+- add_device_randomness(data->bmp180_cal_buf, sizeof(data->bmp180_cal_buf));
++ add_device_randomness(data->bmp180_cal_buf,
++ sizeof(data->bmp180_cal_buf));
+
+ calib->AC1 = be16_to_cpu(data->bmp180_cal_buf[AC1]);
+ calib->AC2 = be16_to_cpu(data->bmp180_cal_buf[AC2]);
+@@ -1961,8 +1971,7 @@ static u32 bmp180_compensate_press(struct bmp280_data *data, s32 adc_press)
+ return p + ((x1 + x2 + 3791) >> 4);
+ }
+
+-static int bmp180_read_press(struct bmp280_data *data,
+- int *val, int *val2)
++static int bmp180_read_press(struct bmp280_data *data, int *val, int *val2)
+ {
+ u32 comp_press;
+ s32 adc_press;
+@@ -2239,6 +2248,7 @@ static int bmp280_runtime_resume(struct device *dev)
+ ret = regulator_bulk_enable(BMP280_NUM_SUPPLIES, data->supplies);
+ if (ret)
+ return ret;
++
+ usleep_range(data->start_up_time, data->start_up_time + 100);
+ return data->chip_info->chip_config(data);
+ }
+diff --git a/drivers/iio/pressure/bmp280-spi.c b/drivers/iio/pressure/bmp280-spi.c
+index 9de923228a9f4..47122da8e716d 100644
+--- a/drivers/iio/pressure/bmp280-spi.c
++++ b/drivers/iio/pressure/bmp280-spi.c
+@@ -12,7 +12,7 @@
+ #include "bmp280.h"
+
+ static int bmp280_regmap_spi_write(void *context, const void *data,
+- size_t count)
++ size_t count)
+ {
+ struct device *dev = context;
+ struct spi_device *spi = to_spi_device(dev);
+@@ -29,7 +29,7 @@ static int bmp280_regmap_spi_write(void *context, const void *data,
+ }
+
+ static int bmp280_regmap_spi_read(void *context, const void *reg,
+- size_t reg_size, void *val, size_t val_size)
++ size_t reg_size, void *val, size_t val_size)
+ {
+ struct device *dev = context;
+ struct spi_device *spi = to_spi_device(dev);
+--
+2.43.0
+
--- /dev/null
+From b50e8262fc726c3792745b124299512510b77530 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 29 Apr 2024 21:00:38 +0200
+Subject: iio: pressure: bmp280: Use BME prefix for BME280 specifics
+
+From: Vasileios Amoiridis <vassilisamir@gmail.com>
+
+[ Upstream commit b23be4cd99a6f1f46963b87952632268174e62c1 ]
+
+Change the rest of the defines and function names that are
+used specifically by the BME280 humidity sensor to BME280
+as it is done for the rest of the BMP{0,1,3,5}80 sensors.
+
+Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
+Link: https://lore.kernel.org/r/20240429190046.24252-3-vassilisamir@gmail.com
+Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
+Stable-dep-of: b9065b0250e1 ("iio: pressure: bmp280: Fix regmap for BMP280 device")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/iio/pressure/bmp280-core.c | 37 +++++++++++------------
+ drivers/iio/pressure/bmp280-regmap.c | 8 ++---
+ drivers/iio/pressure/bmp280.h | 45 +++++++++++++++-------------
+ 3 files changed, 46 insertions(+), 44 deletions(-)
+
+diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
+index dac2a4e237929..8f70fd72f132a 100644
+--- a/drivers/iio/pressure/bmp280-core.c
++++ b/drivers/iio/pressure/bmp280-core.c
+@@ -234,14 +234,14 @@ static int bme280_read_calib(struct bmp280_data *data)
+ * Humidity data is only available on BME280.
+ */
+
+- ret = regmap_read(data->regmap, BMP280_REG_COMP_H1, &tmp);
++ ret = regmap_read(data->regmap, BME280_REG_COMP_H1, &tmp);
+ if (ret < 0) {
+ dev_err(dev, "failed to read H1 comp value\n");
+ return ret;
+ }
+ calib->H1 = tmp;
+
+- ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_H2,
++ ret = regmap_bulk_read(data->regmap, BME280_REG_COMP_H2,
+ &data->le16, sizeof(data->le16));
+ if (ret < 0) {
+ dev_err(dev, "failed to read H2 comp value\n");
+@@ -249,14 +249,14 @@ static int bme280_read_calib(struct bmp280_data *data)
+ }
+ calib->H2 = sign_extend32(le16_to_cpu(data->le16), 15);
+
+- ret = regmap_read(data->regmap, BMP280_REG_COMP_H3, &tmp);
++ ret = regmap_read(data->regmap, BME280_REG_COMP_H3, &tmp);
+ if (ret < 0) {
+ dev_err(dev, "failed to read H3 comp value\n");
+ return ret;
+ }
+ calib->H3 = tmp;
+
+- ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_H4,
++ ret = regmap_bulk_read(data->regmap, BME280_REG_COMP_H4,
+ &data->be16, sizeof(data->be16));
+ if (ret < 0) {
+ dev_err(dev, "failed to read H4 comp value\n");
+@@ -265,15 +265,15 @@ static int bme280_read_calib(struct bmp280_data *data)
+ calib->H4 = sign_extend32(((be16_to_cpu(data->be16) >> 4) & 0xff0) |
+ (be16_to_cpu(data->be16) & 0xf), 11);
+
+- ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_H5,
++ ret = regmap_bulk_read(data->regmap, BME280_REG_COMP_H5,
+ &data->le16, sizeof(data->le16));
+ if (ret < 0) {
+ dev_err(dev, "failed to read H5 comp value\n");
+ return ret;
+ }
+- calib->H5 = sign_extend32(FIELD_GET(BMP280_COMP_H5_MASK, le16_to_cpu(data->le16)), 11);
++ calib->H5 = sign_extend32(FIELD_GET(BME280_COMP_H5_MASK, le16_to_cpu(data->le16)), 11);
+
+- ret = regmap_read(data->regmap, BMP280_REG_COMP_H6, &tmp);
++ ret = regmap_read(data->regmap, BME280_REG_COMP_H6, &tmp);
+ if (ret < 0) {
+ dev_err(dev, "failed to read H6 comp value\n");
+ return ret;
+@@ -289,7 +289,7 @@ static int bme280_read_calib(struct bmp280_data *data)
+ *
+ * Taken from BME280 datasheet, Section 4.2.3, "Compensation formula".
+ */
+-static u32 bmp280_compensate_humidity(struct bmp280_data *data,
++static u32 bme280_compensate_humidity(struct bmp280_data *data,
+ s32 adc_humidity)
+ {
+ struct bmp280_calib *calib = &data->calib.bmp280;
+@@ -429,7 +429,7 @@ static int bmp280_read_press(struct bmp280_data *data,
+ return IIO_VAL_FRACTIONAL;
+ }
+
+-static int bmp280_read_humid(struct bmp280_data *data, int *val, int *val2)
++static int bme280_read_humid(struct bmp280_data *data, int *val, int *val2)
+ {
+ u32 comp_humidity;
+ s32 adc_humidity;
+@@ -440,7 +440,7 @@ static int bmp280_read_humid(struct bmp280_data *data, int *val, int *val2)
+ if (ret < 0)
+ return ret;
+
+- ret = regmap_bulk_read(data->regmap, BMP280_REG_HUMIDITY_MSB,
++ ret = regmap_bulk_read(data->regmap, BME280_REG_HUMIDITY_MSB,
+ &data->be16, sizeof(data->be16));
+ if (ret < 0) {
+ dev_err(data->dev, "failed to read humidity\n");
+@@ -453,7 +453,7 @@ static int bmp280_read_humid(struct bmp280_data *data, int *val, int *val2)
+ dev_err(data->dev, "reading humidity skipped\n");
+ return -EIO;
+ }
+- comp_humidity = bmp280_compensate_humidity(data, adc_humidity);
++ comp_humidity = bme280_compensate_humidity(data, adc_humidity);
+
+ *val = comp_humidity * 1000 / 1024;
+
+@@ -537,7 +537,7 @@ static int bmp280_read_raw(struct iio_dev *indio_dev,
+ return ret;
+ }
+
+-static int bmp280_write_oversampling_ratio_humid(struct bmp280_data *data,
++static int bme280_write_oversampling_ratio_humid(struct bmp280_data *data,
+ int val)
+ {
+ const int *avail = data->chip_info->oversampling_humid_avail;
+@@ -681,7 +681,7 @@ static int bmp280_write_raw(struct iio_dev *indio_dev,
+ mutex_lock(&data->lock);
+ switch (chan->type) {
+ case IIO_HUMIDITYRELATIVE:
+- ret = bmp280_write_oversampling_ratio_humid(data, val);
++ ret = bme280_write_oversampling_ratio_humid(data, val);
+ break;
+ case IIO_PRESSURE:
+ ret = bmp280_write_oversampling_ratio_press(data, val);
+@@ -831,16 +831,15 @@ EXPORT_SYMBOL_NS(bmp280_chip_info, IIO_BMP280);
+
+ static int bme280_chip_config(struct bmp280_data *data)
+ {
+- u8 osrs = FIELD_PREP(BMP280_OSRS_HUMIDITY_MASK, data->oversampling_humid + 1);
++ u8 osrs = FIELD_PREP(BME280_OSRS_HUMIDITY_MASK, data->oversampling_humid + 1);
+ int ret;
+
+ /*
+ * Oversampling of humidity must be set before oversampling of
+ * temperature/pressure is set to become effective.
+ */
+- ret = regmap_update_bits(data->regmap, BMP280_REG_CTRL_HUMIDITY,
+- BMP280_OSRS_HUMIDITY_MASK, osrs);
+-
++ ret = regmap_update_bits(data->regmap, BME280_REG_CTRL_HUMIDITY,
++ BME280_OSRS_HUMIDITY_MASK, osrs);
+ if (ret < 0)
+ return ret;
+
+@@ -868,12 +867,12 @@ const struct bmp280_chip_info bme280_chip_info = {
+
+ .oversampling_humid_avail = bmp280_oversampling_avail,
+ .num_oversampling_humid_avail = ARRAY_SIZE(bmp280_oversampling_avail),
+- .oversampling_humid_default = BMP280_OSRS_HUMIDITY_16X - 1,
++ .oversampling_humid_default = BME280_OSRS_HUMIDITY_16X - 1,
+
+ .chip_config = bme280_chip_config,
+ .read_temp = bmp280_read_temp,
+ .read_press = bmp280_read_press,
+- .read_humid = bmp280_read_humid,
++ .read_humid = bme280_read_humid,
+ .read_calib = bme280_read_calib,
+ };
+ EXPORT_SYMBOL_NS(bme280_chip_info, IIO_BMP280);
+diff --git a/drivers/iio/pressure/bmp280-regmap.c b/drivers/iio/pressure/bmp280-regmap.c
+index 3ee56720428c5..fa52839474b18 100644
+--- a/drivers/iio/pressure/bmp280-regmap.c
++++ b/drivers/iio/pressure/bmp280-regmap.c
+@@ -45,7 +45,7 @@ static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
+ {
+ switch (reg) {
+ case BMP280_REG_CONFIG:
+- case BMP280_REG_CTRL_HUMIDITY:
++ case BME280_REG_CTRL_HUMIDITY:
+ case BMP280_REG_CTRL_MEAS:
+ case BMP280_REG_RESET:
+ return true;
+@@ -57,8 +57,8 @@ static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
+ static bool bmp280_is_volatile_reg(struct device *dev, unsigned int reg)
+ {
+ switch (reg) {
+- case BMP280_REG_HUMIDITY_LSB:
+- case BMP280_REG_HUMIDITY_MSB:
++ case BME280_REG_HUMIDITY_LSB:
++ case BME280_REG_HUMIDITY_MSB:
+ case BMP280_REG_TEMP_XLSB:
+ case BMP280_REG_TEMP_LSB:
+ case BMP280_REG_TEMP_MSB:
+@@ -167,7 +167,7 @@ const struct regmap_config bmp280_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+- .max_register = BMP280_REG_HUMIDITY_LSB,
++ .max_register = BME280_REG_HUMIDITY_LSB,
+ .cache_type = REGCACHE_RBTREE,
+
+ .writeable_reg = bmp280_is_writeable_reg,
+diff --git a/drivers/iio/pressure/bmp280.h b/drivers/iio/pressure/bmp280.h
+index a44ea33221635..1a6903a917add 100644
+--- a/drivers/iio/pressure/bmp280.h
++++ b/drivers/iio/pressure/bmp280.h
+@@ -192,8 +192,6 @@
+ #define BMP380_PRESS_SKIPPED 0x800000
+
+ /* BMP280 specific registers */
+-#define BMP280_REG_HUMIDITY_LSB 0xFE
+-#define BMP280_REG_HUMIDITY_MSB 0xFD
+ #define BMP280_REG_TEMP_XLSB 0xFC
+ #define BMP280_REG_TEMP_LSB 0xFB
+ #define BMP280_REG_TEMP_MSB 0xFA
+@@ -207,15 +205,6 @@
+ #define BMP280_REG_CONFIG 0xF5
+ #define BMP280_REG_CTRL_MEAS 0xF4
+ #define BMP280_REG_STATUS 0xF3
+-#define BMP280_REG_CTRL_HUMIDITY 0xF2
+-
+-/* Due to non linear mapping, and data sizes we can't do a bulk read */
+-#define BMP280_REG_COMP_H1 0xA1
+-#define BMP280_REG_COMP_H2 0xE1
+-#define BMP280_REG_COMP_H3 0xE3
+-#define BMP280_REG_COMP_H4 0xE4
+-#define BMP280_REG_COMP_H5 0xE5
+-#define BMP280_REG_COMP_H6 0xE7
+
+ #define BMP280_REG_COMP_TEMP_START 0x88
+ #define BMP280_COMP_TEMP_REG_COUNT 6
+@@ -223,8 +212,6 @@
+ #define BMP280_REG_COMP_PRESS_START 0x8E
+ #define BMP280_COMP_PRESS_REG_COUNT 18
+
+-#define BMP280_COMP_H5_MASK GENMASK(15, 4)
+-
+ #define BMP280_CONTIGUOUS_CALIB_REGS (BMP280_COMP_TEMP_REG_COUNT + \
+ BMP280_COMP_PRESS_REG_COUNT)
+
+@@ -235,14 +222,6 @@
+ #define BMP280_FILTER_8X 3
+ #define BMP280_FILTER_16X 4
+
+-#define BMP280_OSRS_HUMIDITY_MASK GENMASK(2, 0)
+-#define BMP280_OSRS_HUMIDITY_SKIP 0
+-#define BMP280_OSRS_HUMIDITY_1X 1
+-#define BMP280_OSRS_HUMIDITY_2X 2
+-#define BMP280_OSRS_HUMIDITY_4X 3
+-#define BMP280_OSRS_HUMIDITY_8X 4
+-#define BMP280_OSRS_HUMIDITY_16X 5
+-
+ #define BMP280_OSRS_TEMP_MASK GENMASK(7, 5)
+ #define BMP280_OSRS_TEMP_SKIP 0
+ #define BMP280_OSRS_TEMP_1X 1
+@@ -264,6 +243,30 @@
+ #define BMP280_MODE_FORCED 1
+ #define BMP280_MODE_NORMAL 3
+
++/* BME280 specific registers */
++#define BME280_REG_HUMIDITY_LSB 0xFE
++#define BME280_REG_HUMIDITY_MSB 0xFD
++
++#define BME280_REG_CTRL_HUMIDITY 0xF2
++
++/* Due to non linear mapping, and data sizes we can't do a bulk read */
++#define BME280_REG_COMP_H1 0xA1
++#define BME280_REG_COMP_H2 0xE1
++#define BME280_REG_COMP_H3 0xE3
++#define BME280_REG_COMP_H4 0xE4
++#define BME280_REG_COMP_H5 0xE5
++#define BME280_REG_COMP_H6 0xE7
++
++#define BME280_COMP_H5_MASK GENMASK(15, 4)
++
++#define BME280_OSRS_HUMIDITY_MASK GENMASK(2, 0)
++#define BME280_OSRS_HUMIDITY_SKIP 0
++#define BME280_OSRS_HUMIDITY_1X 1
++#define BME280_OSRS_HUMIDITY_2X 2
++#define BME280_OSRS_HUMIDITY_4X 3
++#define BME280_OSRS_HUMIDITY_8X 4
++#define BME280_OSRS_HUMIDITY_16X 5
++
+ /* BMP180 specific registers */
+ #define BMP180_REG_OUT_XLSB 0xF8
+ #define BMP180_REG_OUT_LSB 0xF7
+--
+2.43.0
+
--- /dev/null
+From cb7ff26400e66e2ce214690e6a2325fbb827511e Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Thu, 26 Sep 2024 07:08:10 -0600
+Subject: io_uring/net: harden multishot termination case for recv
+
+From: Jens Axboe <axboe@kernel.dk>
+
+[ Upstream commit c314094cb4cfa6fc5a17f4881ead2dfebfa717a7 ]
+
+If the recv returns zero, or an error, then it doesn't matter if more
+data has already been received for this buffer. A condition like that
+should terminate the multishot receive. Rather than pass in the
+collected return value, pass in whether to terminate or keep the recv
+going separately.
+
+Note that this isn't a bug right now, as the only way to get there is
+via setting MSG_WAITALL with multishot receive. And if an application
+does that, then -EINVAL is returned anyway. But it seems like an easy
+bug to introduce, so let's make it a bit more explicit.
+
+Link: https://github.com/axboe/liburing/issues/1246
+Cc: stable@vger.kernel.org
+Fixes: b3fdea6ecb55 ("io_uring: multishot recv")
+Signed-off-by: Jens Axboe <axboe@kernel.dk>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ io_uring/net.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/io_uring/net.c b/io_uring/net.c
+index cf1060fb04f43..7412904387bfa 100644
+--- a/io_uring/net.c
++++ b/io_uring/net.c
+@@ -930,6 +930,7 @@ int io_recv(struct io_kiocb *req, unsigned int issue_flags)
+ int ret, min_ret = 0;
+ bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;
+ size_t len = sr->len;
++ bool mshot_finished;
+
+ if (!(req->flags & REQ_F_POLLED) &&
+ (sr->flags & IORING_RECVSEND_POLL_FIRST))
+@@ -999,6 +1000,7 @@ int io_recv(struct io_kiocb *req, unsigned int issue_flags)
+ req_set_fail(req);
+ }
+
++ mshot_finished = ret <= 0;
+ if (ret > 0)
+ ret += sr->done_io;
+ else if (sr->done_io)
+@@ -1006,7 +1008,7 @@ int io_recv(struct io_kiocb *req, unsigned int issue_flags)
+ else
+ io_kbuf_recycle(req, issue_flags);
+
+- if (!io_recv_finish(req, &ret, &msg, ret <= 0, issue_flags))
++ if (!io_recv_finish(req, &ret, &msg, mshot_finished, issue_flags))
+ goto retry_multishot;
+
+ return ret;
+--
+2.43.0
+
--- /dev/null
+From ededfd6433c92f64522122c3e546ad8b2b13f264 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Tue, 1 Oct 2024 18:02:22 +0900
+Subject: kconfig: qconf: fix buffer overflow in debug links
+
+From: Masahiro Yamada <masahiroy@kernel.org>
+
+[ Upstream commit 984ed20ece1c6c20789ece040cbff3eb1a388fa9 ]
+
+If you enable "Option -> Show Debug Info" and click a link, the program
+terminates with the following error:
+
+ *** buffer overflow detected ***: terminated
+
+The buffer overflow is caused by the following line:
+
+ strcat(data, "$");
+
+The buffer needs one more byte to accommodate the additional character.
+
+Fixes: c4f7398bee9c ("kconfig: qconf: make debug links work again")
+Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ scripts/kconfig/qconf.cc | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
+index 620a3527c767a..4f3ba3debc08e 100644
+--- a/scripts/kconfig/qconf.cc
++++ b/scripts/kconfig/qconf.cc
+@@ -1174,7 +1174,7 @@ void ConfigInfoView::clicked(const QUrl &url)
+ {
+ QByteArray str = url.toEncoded();
+ const std::size_t count = str.size();
+- char *data = new char[count + 1];
++ char *data = new char[count + 2]; // '$' + '\0'
+ struct symbol **result;
+ struct menu *m = NULL;
+
+--
+2.43.0
+
--- /dev/null
+From 56ac1f323f02ee15ed9f42f99fb78356abfda50e Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Thu, 29 Aug 2024 10:42:23 -0700
+Subject: lib/buildid: harden build ID parsing logic
+
+From: Andrii Nakryiko <andrii@kernel.org>
+
+[ Upstream commit 905415ff3ffb1d7e5afa62bacabd79776bd24606 ]
+
+Harden build ID parsing logic, adding explicit READ_ONCE() where it's
+important to have a consistent value read and validated just once.
+
+Also, as pointed out by Andi Kleen, we need to make sure that entire ELF
+note is within a page bounds, so move the overflow check up and add an
+extra note_size boundaries validation.
+
+Fixes tag below points to the code that moved this code into
+lib/buildid.c, and then subsequently was used in perf subsystem, making
+this code exposed to perf_event_open() users in v5.12+.
+
+Cc: stable@vger.kernel.org
+Reviewed-by: Eduard Zingerman <eddyz87@gmail.com>
+Reviewed-by: Jann Horn <jannh@google.com>
+Suggested-by: Andi Kleen <ak@linux.intel.com>
+Fixes: bd7525dacd7e ("bpf: Move stack_map_get_build_id into lib")
+Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
+Link: https://lore.kernel.org/r/20240829174232.3133883-2-andrii@kernel.org
+Signed-off-by: Alexei Starovoitov <ast@kernel.org>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ lib/buildid.c | 76 +++++++++++++++++++++++++++++----------------------
+ 1 file changed, 44 insertions(+), 32 deletions(-)
+
+diff --git a/lib/buildid.c b/lib/buildid.c
+index cdc0950f73843..d3bc3d0528d5c 100644
+--- a/lib/buildid.c
++++ b/lib/buildid.c
+@@ -18,31 +18,37 @@ static int parse_build_id_buf(unsigned char *build_id,
+ const void *note_start,
+ Elf32_Word note_size)
+ {
+- Elf32_Word note_offs = 0, new_offs;
+-
+- while (note_offs + sizeof(Elf32_Nhdr) < note_size) {
+- Elf32_Nhdr *nhdr = (Elf32_Nhdr *)(note_start + note_offs);
++ const char note_name[] = "GNU";
++ const size_t note_name_sz = sizeof(note_name);
++ u64 note_off = 0, new_off, name_sz, desc_sz;
++ const char *data;
++
++ while (note_off + sizeof(Elf32_Nhdr) < note_size &&
++ note_off + sizeof(Elf32_Nhdr) > note_off /* overflow */) {
++ Elf32_Nhdr *nhdr = (Elf32_Nhdr *)(note_start + note_off);
++
++ name_sz = READ_ONCE(nhdr->n_namesz);
++ desc_sz = READ_ONCE(nhdr->n_descsz);
++
++ new_off = note_off + sizeof(Elf32_Nhdr);
++ if (check_add_overflow(new_off, ALIGN(name_sz, 4), &new_off) ||
++ check_add_overflow(new_off, ALIGN(desc_sz, 4), &new_off) ||
++ new_off > note_size)
++ break;
+
+ if (nhdr->n_type == BUILD_ID &&
+- nhdr->n_namesz == sizeof("GNU") &&
+- !strcmp((char *)(nhdr + 1), "GNU") &&
+- nhdr->n_descsz > 0 &&
+- nhdr->n_descsz <= BUILD_ID_SIZE_MAX) {
+- memcpy(build_id,
+- note_start + note_offs +
+- ALIGN(sizeof("GNU"), 4) + sizeof(Elf32_Nhdr),
+- nhdr->n_descsz);
+- memset(build_id + nhdr->n_descsz, 0,
+- BUILD_ID_SIZE_MAX - nhdr->n_descsz);
++ name_sz == note_name_sz &&
++ memcmp(nhdr + 1, note_name, note_name_sz) == 0 &&
++ desc_sz > 0 && desc_sz <= BUILD_ID_SIZE_MAX) {
++ data = note_start + note_off + ALIGN(note_name_sz, 4);
++ memcpy(build_id, data, desc_sz);
++ memset(build_id + desc_sz, 0, BUILD_ID_SIZE_MAX - desc_sz);
+ if (size)
+- *size = nhdr->n_descsz;
++ *size = desc_sz;
+ return 0;
+ }
+- new_offs = note_offs + sizeof(Elf32_Nhdr) +
+- ALIGN(nhdr->n_namesz, 4) + ALIGN(nhdr->n_descsz, 4);
+- if (new_offs <= note_offs) /* overflow */
+- break;
+- note_offs = new_offs;
++
++ note_off = new_off;
+ }
+
+ return -EINVAL;
+@@ -71,7 +77,7 @@ static int get_build_id_32(const void *page_addr, unsigned char *build_id,
+ {
+ Elf32_Ehdr *ehdr = (Elf32_Ehdr *)page_addr;
+ Elf32_Phdr *phdr;
+- int i;
++ __u32 i, phnum;
+
+ /*
+ * FIXME
+@@ -80,18 +86,19 @@ static int get_build_id_32(const void *page_addr, unsigned char *build_id,
+ */
+ if (ehdr->e_phoff != sizeof(Elf32_Ehdr))
+ return -EINVAL;
++
++ phnum = READ_ONCE(ehdr->e_phnum);
+ /* only supports phdr that fits in one page */
+- if (ehdr->e_phnum >
+- (PAGE_SIZE - sizeof(Elf32_Ehdr)) / sizeof(Elf32_Phdr))
++ if (phnum > (PAGE_SIZE - sizeof(Elf32_Ehdr)) / sizeof(Elf32_Phdr))
+ return -EINVAL;
+
+ phdr = (Elf32_Phdr *)(page_addr + sizeof(Elf32_Ehdr));
+
+- for (i = 0; i < ehdr->e_phnum; ++i) {
++ for (i = 0; i < phnum; ++i) {
+ if (phdr[i].p_type == PT_NOTE &&
+ !parse_build_id(page_addr, build_id, size,
+- page_addr + phdr[i].p_offset,
+- phdr[i].p_filesz))
++ page_addr + READ_ONCE(phdr[i].p_offset),
++ READ_ONCE(phdr[i].p_filesz)))
+ return 0;
+ }
+ return -EINVAL;
+@@ -103,7 +110,7 @@ static int get_build_id_64(const void *page_addr, unsigned char *build_id,
+ {
+ Elf64_Ehdr *ehdr = (Elf64_Ehdr *)page_addr;
+ Elf64_Phdr *phdr;
+- int i;
++ __u32 i, phnum;
+
+ /*
+ * FIXME
+@@ -112,18 +119,19 @@ static int get_build_id_64(const void *page_addr, unsigned char *build_id,
+ */
+ if (ehdr->e_phoff != sizeof(Elf64_Ehdr))
+ return -EINVAL;
++
++ phnum = READ_ONCE(ehdr->e_phnum);
+ /* only supports phdr that fits in one page */
+- if (ehdr->e_phnum >
+- (PAGE_SIZE - sizeof(Elf64_Ehdr)) / sizeof(Elf64_Phdr))
++ if (phnum > (PAGE_SIZE - sizeof(Elf64_Ehdr)) / sizeof(Elf64_Phdr))
+ return -EINVAL;
+
+ phdr = (Elf64_Phdr *)(page_addr + sizeof(Elf64_Ehdr));
+
+- for (i = 0; i < ehdr->e_phnum; ++i) {
++ for (i = 0; i < phnum; ++i) {
+ if (phdr[i].p_type == PT_NOTE &&
+ !parse_build_id(page_addr, build_id, size,
+- page_addr + phdr[i].p_offset,
+- phdr[i].p_filesz))
++ page_addr + READ_ONCE(phdr[i].p_offset),
++ READ_ONCE(phdr[i].p_filesz)))
+ return 0;
+ }
+ return -EINVAL;
+@@ -152,6 +160,10 @@ int build_id_parse(struct vm_area_struct *vma, unsigned char *build_id,
+ page = find_get_page(vma->vm_file->f_mapping, 0);
+ if (!page)
+ return -EFAULT; /* page not mapped */
++ if (!PageUptodate(page)) {
++ put_page(page);
++ return -EFAULT;
++ }
+
+ ret = -EINVAL;
+ page_addr = kmap_atomic(page);
+--
+2.43.0
+
--- /dev/null
+From d7c20dae9f77c5eabca99ec8dabef42c03c47498 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 11 Dec 2023 18:29:46 +0530
+Subject: media: i2c: imx335: Enable regulator supplies
+
+From: Kieran Bingham <kieran.bingham@ideasonboard.com>
+
+[ Upstream commit fea91ee73b7cd19f08017221923d789f984abc54 ]
+
+Provide support for enabling and disabling regulator supplies to control
+power to the camera sensor.
+
+While updating the power on function, document that a sleep is
+represented as 'T4' in the datasheet power on sequence.
+
+Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
+Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
+Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
+Stable-dep-of: 99d30e2fdea4 ("media: imx335: Fix reset-gpio handling")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/media/i2c/imx335.c | 36 ++++++++++++++++++++++++++++++++++--
+ 1 file changed, 34 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c
+index 26869abd77a67..771f13b524baf 100644
+--- a/drivers/media/i2c/imx335.c
++++ b/drivers/media/i2c/imx335.c
+@@ -75,6 +75,12 @@ struct imx335_reg_list {
+ const struct imx335_reg *regs;
+ };
+
++static const char * const imx335_supply_name[] = {
++ "avdd", /* Analog (2.9V) supply */
++ "ovdd", /* Digital I/O (1.8V) supply */
++ "dvdd", /* Digital Core (1.2V) supply */
++};
++
+ /**
+ * struct imx335_mode - imx335 sensor mode structure
+ * @width: Frame width
+@@ -108,6 +114,7 @@ struct imx335_mode {
+ * @sd: V4L2 sub-device
+ * @pad: Media pad. Only one pad supported
+ * @reset_gpio: Sensor reset gpio
++ * @supplies: Regulator supplies to handle power control
+ * @inclk: Sensor input clock
+ * @ctrl_handler: V4L2 control handler
+ * @link_freq_ctrl: Pointer to link frequency control
+@@ -127,6 +134,8 @@ struct imx335 {
+ struct v4l2_subdev sd;
+ struct media_pad pad;
+ struct gpio_desc *reset_gpio;
++ struct regulator_bulk_data supplies[ARRAY_SIZE(imx335_supply_name)];
++
+ struct clk *inclk;
+ struct v4l2_ctrl_handler ctrl_handler;
+ struct v4l2_ctrl *link_freq_ctrl;
+@@ -790,6 +799,17 @@ static int imx335_parse_hw_config(struct imx335 *imx335)
+ return PTR_ERR(imx335->reset_gpio);
+ }
+
++ for (i = 0; i < ARRAY_SIZE(imx335_supply_name); i++)
++ imx335->supplies[i].supply = imx335_supply_name[i];
++
++ ret = devm_regulator_bulk_get(imx335->dev,
++ ARRAY_SIZE(imx335_supply_name),
++ imx335->supplies);
++ if (ret) {
++ dev_err(imx335->dev, "Failed to get regulators\n");
++ return ret;
++ }
++
+ /* Get sensor input clock */
+ imx335->inclk = devm_clk_get(imx335->dev, NULL);
+ if (IS_ERR(imx335->inclk)) {
+@@ -868,6 +888,17 @@ static int imx335_power_on(struct device *dev)
+ struct imx335 *imx335 = to_imx335(sd);
+ int ret;
+
++ ret = regulator_bulk_enable(ARRAY_SIZE(imx335_supply_name),
++ imx335->supplies);
++ if (ret) {
++ dev_err(dev, "%s: failed to enable regulators\n",
++ __func__);
++ return ret;
++ }
++
++ usleep_range(500, 550); /* Tlow */
++
++ /* Set XCLR */
+ gpiod_set_value_cansleep(imx335->reset_gpio, 1);
+
+ ret = clk_prepare_enable(imx335->inclk);
+@@ -876,12 +907,13 @@ static int imx335_power_on(struct device *dev)
+ goto error_reset;
+ }
+
+- usleep_range(20, 22);
++ usleep_range(20, 22); /* T4 */
+
+ return 0;
+
+ error_reset:
+ gpiod_set_value_cansleep(imx335->reset_gpio, 0);
++ regulator_bulk_disable(ARRAY_SIZE(imx335_supply_name), imx335->supplies);
+
+ return ret;
+ }
+@@ -898,8 +930,8 @@ static int imx335_power_off(struct device *dev)
+ struct imx335 *imx335 = to_imx335(sd);
+
+ gpiod_set_value_cansleep(imx335->reset_gpio, 0);
+-
+ clk_disable_unprepare(imx335->inclk);
++ regulator_bulk_disable(ARRAY_SIZE(imx335_supply_name), imx335->supplies);
+
+ return 0;
+ }
+--
+2.43.0
+
--- /dev/null
+From 9e988135d9903a31a781ebbad70549fbf87b4b77 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Fri, 30 Aug 2024 11:41:52 +0530
+Subject: media: imx335: Fix reset-gpio handling
+
+From: Umang Jain <umang.jain@ideasonboard.com>
+
+[ Upstream commit 99d30e2fdea4086be4e66e2deb10de854b547ab8 ]
+
+Rectify the logical value of reset-gpio so that it is set to
+0 (disabled) during power-on and to 1 (enabled) during power-off.
+
+Set the reset-gpio to GPIO_OUT_HIGH at initialization time to make
+sure it starts off in reset. Also drop the "Set XCLR" comment which
+is not-so-informative.
+
+The existing usage of imx335 had reset-gpios polarity inverted
+(GPIO_ACTIVE_HIGH) in their device-tree sources. With this patch
+included, those DTS will not be able to stream imx335 anymore. The
+reset-gpio polarity will need to be rectified in the device-tree
+sources as shown in [1] example, in order to get imx335 functional
+again (as it remains in reset prior to this fix).
+
+Cc: stable@vger.kernel.org
+Fixes: 45d19b5fb9ae ("media: i2c: Add imx335 camera sensor driver")
+Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Link: https://lore.kernel.org/linux-media/20240729110437.199428-1-umang.jain@ideasonboard.com/
+Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
+Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
+Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/media/i2c/imx335.c | 9 ++++-----
+ 1 file changed, 4 insertions(+), 5 deletions(-)
+
+diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c
+index 771f13b524baf..cb3f4fc66a174 100644
+--- a/drivers/media/i2c/imx335.c
++++ b/drivers/media/i2c/imx335.c
+@@ -792,7 +792,7 @@ static int imx335_parse_hw_config(struct imx335 *imx335)
+
+ /* Request optional reset pin */
+ imx335->reset_gpio = devm_gpiod_get_optional(imx335->dev, "reset",
+- GPIOD_OUT_LOW);
++ GPIOD_OUT_HIGH);
+ if (IS_ERR(imx335->reset_gpio)) {
+ dev_err(imx335->dev, "failed to get reset gpio %ld",
+ PTR_ERR(imx335->reset_gpio));
+@@ -898,8 +898,7 @@ static int imx335_power_on(struct device *dev)
+
+ usleep_range(500, 550); /* Tlow */
+
+- /* Set XCLR */
+- gpiod_set_value_cansleep(imx335->reset_gpio, 1);
++ gpiod_set_value_cansleep(imx335->reset_gpio, 0);
+
+ ret = clk_prepare_enable(imx335->inclk);
+ if (ret) {
+@@ -912,7 +911,7 @@ static int imx335_power_on(struct device *dev)
+ return 0;
+
+ error_reset:
+- gpiod_set_value_cansleep(imx335->reset_gpio, 0);
++ gpiod_set_value_cansleep(imx335->reset_gpio, 1);
+ regulator_bulk_disable(ARRAY_SIZE(imx335_supply_name), imx335->supplies);
+
+ return ret;
+@@ -929,7 +928,7 @@ static int imx335_power_off(struct device *dev)
+ struct v4l2_subdev *sd = dev_get_drvdata(dev);
+ struct imx335 *imx335 = to_imx335(sd);
+
+- gpiod_set_value_cansleep(imx335->reset_gpio, 0);
++ gpiod_set_value_cansleep(imx335->reset_gpio, 1);
+ clk_disable_unprepare(imx335->inclk);
+ regulator_bulk_disable(ARRAY_SIZE(imx335_supply_name), imx335->supplies);
+
+--
+2.43.0
+
--- /dev/null
+From 28bbb2e3f6fbb1c8679803834e8646c7a5369e7f Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 7 Oct 2024 19:25:12 +0000
+Subject: mm: z3fold: deprecate CONFIG_Z3FOLD
+
+From: Yosry Ahmed <yosryahmed@google.com>
+
+The z3fold compressed pages allocator is rarely used, most users use
+zsmalloc. The only disadvantage of zsmalloc in comparison is the
+dependency on MMU, and zbud is a more common option for !MMU as it was the
+default zswap allocator for a long time.
+
+Historically, zsmalloc had worse latency than zbud and z3fold but offered
+better memory savings. This is no longer the case as shown by a simple
+recent analysis [1]. That analysis showed that z3fold does not have any
+advantage over zsmalloc or zbud considering both performance and memory
+usage. In a kernel build test on tmpfs in a limited cgroup, z3fold took
+3% more time and used 1.8% more memory. The latency of zswap_load() was
+7% higher, and that of zswap_store() was 10% higher. Zsmalloc is better
+in all metrics.
+
+Moreover, z3fold apparently has latent bugs, which was made noticeable by
+a recent soft lockup bug report with z3fold [2]. Switching to zsmalloc
+not only fixed the problem, but also reduced the swap usage from 6~8G to
+1~2G. Other users have also reported being bitten by mistakenly enabling
+z3fold.
+
+Other than hurting users, z3fold is repeatedly causing wasted engineering
+effort. Apart from investigating the above bug, it came up in multiple
+development discussions (e.g. [3]) as something we need to handle, when
+there aren't any legit users (at least not intentionally).
+
+The natural course of action is to deprecate z3fold, and remove in a few
+cycles if no objections are raised from active users. Next on the list
+should be zbud, as it offers marginal latency gains at the cost of huge
+memory waste when compared to zsmalloc. That one will need to wait until
+zsmalloc does not depend on MMU.
+
+Rename the user-visible config option from CONFIG_Z3FOLD to
+CONFIG_Z3FOLD_DEPRECATED so that users with CONFIG_Z3FOLD=y get a new
+prompt with explanation during make oldconfig. Also, remove
+CONFIG_Z3FOLD=y from defconfigs.
+
+[1]https://lore.kernel.org/lkml/CAJD7tkbRF6od-2x_L8-A1QL3=2Ww13sCj4S3i4bNndqF+3+_Vg@mail.gmail.com/
+[2]https://lore.kernel.org/lkml/EF0ABD3E-A239-4111-A8AB-5C442E759CF3@gmail.com/
+[3]https://lore.kernel.org/lkml/CAJD7tkbnmeVugfunffSovJf9FAgy9rhBVt_tx=nxUveLUfqVsA@mail.gmail.com/
+
+[arnd@arndb.de: deprecate ZSWAP_ZPOOL_DEFAULT_Z3FOLD as well]
+ Link: https://lkml.kernel.org/r/20240909202625.1054880-1-arnd@kernel.org
+Link: https://lkml.kernel.org/r/20240904233343.933462-1-yosryahmed@google.com
+Signed-off-by: Yosry Ahmed <yosryahmed@google.com>
+Signed-off-by: Arnd Bergmann <arnd@arndb.de>
+Acked-by: Chris Down <chris@chrisdown.name>
+Acked-by: Nhat Pham <nphamcs@gmail.com>
+Acked-by: Johannes Weiner <hannes@cmpxchg.org>
+Acked-by: Vitaly Wool <vitaly.wool@konsulko.com>
+Acked-by: Christoph Hellwig <hch@lst.de>
+Cc: Aneesh Kumar K.V <aneesh.kumar@kernel.org>
+Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
+Cc: Huacai Chen <chenhuacai@kernel.org>
+Cc: Miaohe Lin <linmiaohe@huawei.com>
+Cc: Michael Ellerman <mpe@ellerman.id.au>
+Cc: Naveen N. Rao <naveen.n.rao@linux.ibm.com>
+Cc: Nicholas Piggin <npiggin@gmail.com>
+Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
+Cc: WANG Xuerui <kernel@xen0n.name>
+Cc: <stable@vger.kernel.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+(cherry picked from commit 7a2369b74abf76cd3e54c45b30f6addb497f831b)
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ arch/loongarch/configs/loongson3_defconfig | 1 -
+ arch/powerpc/configs/ppc64_defconfig | 1 -
+ mm/Kconfig | 25 ++++++++++++++++------
+ 3 files changed, 19 insertions(+), 8 deletions(-)
+
+diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig
+index a3b52aaa83b33..e5f70642ed206 100644
+--- a/arch/loongarch/configs/loongson3_defconfig
++++ b/arch/loongarch/configs/loongson3_defconfig
+@@ -83,7 +83,6 @@ CONFIG_ZPOOL=y
+ CONFIG_ZSWAP=y
+ CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD=y
+ CONFIG_ZBUD=y
+-CONFIG_Z3FOLD=y
+ CONFIG_ZSMALLOC=m
+ # CONFIG_COMPAT_BRK is not set
+ CONFIG_MEMORY_HOTPLUG=y
+diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
+index 6e7b9e8fd2251..65e518dde2c2f 100644
+--- a/arch/powerpc/configs/ppc64_defconfig
++++ b/arch/powerpc/configs/ppc64_defconfig
+@@ -81,7 +81,6 @@ CONFIG_MODULE_SIG_SHA512=y
+ CONFIG_PARTITION_ADVANCED=y
+ CONFIG_BINFMT_MISC=m
+ CONFIG_ZSWAP=y
+-CONFIG_Z3FOLD=y
+ CONFIG_ZSMALLOC=y
+ # CONFIG_SLAB_MERGE_DEFAULT is not set
+ CONFIG_SLAB_FREELIST_RANDOM=y
+diff --git a/mm/Kconfig b/mm/Kconfig
+index ece4f2847e2b4..c11cd01169e8d 100644
+--- a/mm/Kconfig
++++ b/mm/Kconfig
+@@ -147,12 +147,15 @@ config ZSWAP_ZPOOL_DEFAULT_ZBUD
+ help
+ Use the zbud allocator as the default allocator.
+
+-config ZSWAP_ZPOOL_DEFAULT_Z3FOLD
+- bool "z3fold"
+- select Z3FOLD
++config ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED
++ bool "z3foldi (DEPRECATED)"
++ select Z3FOLD_DEPRECATED
+ help
+ Use the z3fold allocator as the default allocator.
+
++ Deprecated and scheduled for removal in a few cycles,
++ see CONFIG_Z3FOLD_DEPRECATED.
++
+ config ZSWAP_ZPOOL_DEFAULT_ZSMALLOC
+ bool "zsmalloc"
+ select ZSMALLOC
+@@ -164,7 +167,7 @@ config ZSWAP_ZPOOL_DEFAULT
+ string
+ depends on ZSWAP
+ default "zbud" if ZSWAP_ZPOOL_DEFAULT_ZBUD
+- default "z3fold" if ZSWAP_ZPOOL_DEFAULT_Z3FOLD
++ default "z3fold" if ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED
+ default "zsmalloc" if ZSWAP_ZPOOL_DEFAULT_ZSMALLOC
+ default ""
+
+@@ -178,15 +181,25 @@ config ZBUD
+ deterministic reclaim properties that make it preferable to a higher
+ density approach when reclaim will be used.
+
+-config Z3FOLD
+- tristate "3:1 compression allocator (z3fold)"
++config Z3FOLD_DEPRECATED
++ tristate "3:1 compression allocator (z3fold) (DEPRECATED)"
+ depends on ZSWAP
+ help
++ Deprecated and scheduled for removal in a few cycles. If you have
++ a good reason for using Z3FOLD over ZSMALLOC, please contact
++ linux-mm@kvack.org and the zswap maintainers.
++
+ A special purpose allocator for storing compressed pages.
+ It is designed to store up to three compressed pages per physical
+ page. It is a ZBUD derivative so the simplicity and determinism are
+ still there.
+
++config Z3FOLD
++ tristate
++ default y if Z3FOLD_DEPRECATED=y
++ default m if Z3FOLD_DEPRECATED=m
++ depends on Z3FOLD_DEPRECATED
++
+ config ZSMALLOC
+ tristate
+ prompt "N:1 compression allocator (zsmalloc)" if ZSWAP
+--
+2.43.0
+
--- /dev/null
+From 2464c87876ed0c7a9978ae776305f00dc823f868 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 17 Jun 2024 13:17:26 -0700
+Subject: net: mana: Add support for page sizes other than 4KB on ARM64
+
+From: Haiyang Zhang <haiyangz@microsoft.com>
+
+[ Upstream commit 382d1741b5b2feffef7942dd074206372afe1a96 ]
+
+As defined by the MANA Hardware spec, the queue size for DMA is 4KB
+minimal, and power of 2. And, the HWC queue size has to be exactly
+4KB.
+
+To support page sizes other than 4KB on ARM64, define the minimal
+queue size as a macro separately from the PAGE_SIZE, which we always
+assumed it to be 4KB before supporting ARM64.
+
+Also, add MANA specific macros and update code related to size
+alignment, DMA region calculations, etc.
+
+Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
+Reviewed-by: Michael Kelley <mhklinux@outlook.com>
+Link: https://lore.kernel.org/r/1718655446-6576-1-git-send-email-haiyangz@microsoft.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Stable-dep-of: 9e517a8e9d9a ("RDMA/mana_ib: use the correct page table index based on hardware page size")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/net/ethernet/microsoft/Kconfig | 2 +-
+ drivers/net/ethernet/microsoft/mana/gdma_main.c | 10 +++++-----
+ drivers/net/ethernet/microsoft/mana/hw_channel.c | 14 +++++++-------
+ drivers/net/ethernet/microsoft/mana/mana_en.c | 8 ++++----
+ drivers/net/ethernet/microsoft/mana/shm_channel.c | 13 +++++++------
+ include/net/mana/gdma.h | 10 +++++++++-
+ include/net/mana/mana.h | 3 ++-
+ 7 files changed, 35 insertions(+), 25 deletions(-)
+
+diff --git a/drivers/net/ethernet/microsoft/Kconfig b/drivers/net/ethernet/microsoft/Kconfig
+index 286f0d5697a16..901fbffbf718e 100644
+--- a/drivers/net/ethernet/microsoft/Kconfig
++++ b/drivers/net/ethernet/microsoft/Kconfig
+@@ -18,7 +18,7 @@ if NET_VENDOR_MICROSOFT
+ config MICROSOFT_MANA
+ tristate "Microsoft Azure Network Adapter (MANA) support"
+ depends on PCI_MSI
+- depends on X86_64 || (ARM64 && !CPU_BIG_ENDIAN && ARM64_4K_PAGES)
++ depends on X86_64 || (ARM64 && !CPU_BIG_ENDIAN)
+ depends on PCI_HYPERV
+ select AUXILIARY_BUS
+ select PAGE_POOL
+diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c
+index 6367de0c2c2e8..ae014e21eb605 100644
+--- a/drivers/net/ethernet/microsoft/mana/gdma_main.c
++++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c
+@@ -179,7 +179,7 @@ int mana_gd_alloc_memory(struct gdma_context *gc, unsigned int length,
+ dma_addr_t dma_handle;
+ void *buf;
+
+- if (length < PAGE_SIZE || !is_power_of_2(length))
++ if (length < MANA_PAGE_SIZE || !is_power_of_2(length))
+ return -EINVAL;
+
+ gmi->dev = gc->dev;
+@@ -720,7 +720,7 @@ EXPORT_SYMBOL_NS(mana_gd_destroy_dma_region, NET_MANA);
+ static int mana_gd_create_dma_region(struct gdma_dev *gd,
+ struct gdma_mem_info *gmi)
+ {
+- unsigned int num_page = gmi->length / PAGE_SIZE;
++ unsigned int num_page = gmi->length / MANA_PAGE_SIZE;
+ struct gdma_create_dma_region_req *req = NULL;
+ struct gdma_create_dma_region_resp resp = {};
+ struct gdma_context *gc = gd->gdma_context;
+@@ -730,10 +730,10 @@ static int mana_gd_create_dma_region(struct gdma_dev *gd,
+ int err;
+ int i;
+
+- if (length < PAGE_SIZE || !is_power_of_2(length))
++ if (length < MANA_PAGE_SIZE || !is_power_of_2(length))
+ return -EINVAL;
+
+- if (offset_in_page(gmi->virt_addr) != 0)
++ if (!MANA_PAGE_ALIGNED(gmi->virt_addr))
+ return -EINVAL;
+
+ hwc = gc->hwc.driver_data;
+@@ -754,7 +754,7 @@ static int mana_gd_create_dma_region(struct gdma_dev *gd,
+ req->page_addr_list_len = num_page;
+
+ for (i = 0; i < num_page; i++)
+- req->page_addr_list[i] = gmi->dma_handle + i * PAGE_SIZE;
++ req->page_addr_list[i] = gmi->dma_handle + i * MANA_PAGE_SIZE;
+
+ err = mana_gd_send_request(gc, req_msg_size, req, sizeof(resp), &resp);
+ if (err)
+diff --git a/drivers/net/ethernet/microsoft/mana/hw_channel.c b/drivers/net/ethernet/microsoft/mana/hw_channel.c
+index 236daa0535ba0..9d6426d4158e3 100644
+--- a/drivers/net/ethernet/microsoft/mana/hw_channel.c
++++ b/drivers/net/ethernet/microsoft/mana/hw_channel.c
+@@ -366,12 +366,12 @@ static int mana_hwc_create_cq(struct hw_channel_context *hwc, u16 q_depth,
+ int err;
+
+ eq_size = roundup_pow_of_two(GDMA_EQE_SIZE * q_depth);
+- if (eq_size < MINIMUM_SUPPORTED_PAGE_SIZE)
+- eq_size = MINIMUM_SUPPORTED_PAGE_SIZE;
++ if (eq_size < MANA_MIN_QSIZE)
++ eq_size = MANA_MIN_QSIZE;
+
+ cq_size = roundup_pow_of_two(GDMA_CQE_SIZE * q_depth);
+- if (cq_size < MINIMUM_SUPPORTED_PAGE_SIZE)
+- cq_size = MINIMUM_SUPPORTED_PAGE_SIZE;
++ if (cq_size < MANA_MIN_QSIZE)
++ cq_size = MANA_MIN_QSIZE;
+
+ hwc_cq = kzalloc(sizeof(*hwc_cq), GFP_KERNEL);
+ if (!hwc_cq)
+@@ -433,7 +433,7 @@ static int mana_hwc_alloc_dma_buf(struct hw_channel_context *hwc, u16 q_depth,
+
+ dma_buf->num_reqs = q_depth;
+
+- buf_size = PAGE_ALIGN(q_depth * max_msg_size);
++ buf_size = MANA_PAGE_ALIGN(q_depth * max_msg_size);
+
+ gmi = &dma_buf->mem_info;
+ err = mana_gd_alloc_memory(gc, buf_size, gmi);
+@@ -501,8 +501,8 @@ static int mana_hwc_create_wq(struct hw_channel_context *hwc,
+ else
+ queue_size = roundup_pow_of_two(GDMA_MAX_SQE_SIZE * q_depth);
+
+- if (queue_size < MINIMUM_SUPPORTED_PAGE_SIZE)
+- queue_size = MINIMUM_SUPPORTED_PAGE_SIZE;
++ if (queue_size < MANA_MIN_QSIZE)
++ queue_size = MANA_MIN_QSIZE;
+
+ hwc_wq = kzalloc(sizeof(*hwc_wq), GFP_KERNEL);
+ if (!hwc_wq)
+diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c
+index d8cce3771af21..89852bbc877c1 100644
+--- a/drivers/net/ethernet/microsoft/mana/mana_en.c
++++ b/drivers/net/ethernet/microsoft/mana/mana_en.c
+@@ -1902,10 +1902,10 @@ static int mana_create_txq(struct mana_port_context *apc,
+ * to prevent overflow.
+ */
+ txq_size = MAX_SEND_BUFFERS_PER_QUEUE * 32;
+- BUILD_BUG_ON(!PAGE_ALIGNED(txq_size));
++ BUILD_BUG_ON(!MANA_PAGE_ALIGNED(txq_size));
+
+ cq_size = MAX_SEND_BUFFERS_PER_QUEUE * COMP_ENTRY_SIZE;
+- cq_size = PAGE_ALIGN(cq_size);
++ cq_size = MANA_PAGE_ALIGN(cq_size);
+
+ gc = gd->gdma_context;
+
+@@ -2203,8 +2203,8 @@ static struct mana_rxq *mana_create_rxq(struct mana_port_context *apc,
+ if (err)
+ goto out;
+
+- rq_size = PAGE_ALIGN(rq_size);
+- cq_size = PAGE_ALIGN(cq_size);
++ rq_size = MANA_PAGE_ALIGN(rq_size);
++ cq_size = MANA_PAGE_ALIGN(cq_size);
+
+ /* Create RQ */
+ memset(&spec, 0, sizeof(spec));
+diff --git a/drivers/net/ethernet/microsoft/mana/shm_channel.c b/drivers/net/ethernet/microsoft/mana/shm_channel.c
+index 5553af9c8085a..0f1679ebad96b 100644
+--- a/drivers/net/ethernet/microsoft/mana/shm_channel.c
++++ b/drivers/net/ethernet/microsoft/mana/shm_channel.c
+@@ -6,6 +6,7 @@
+ #include <linux/io.h>
+ #include <linux/mm.h>
+
++#include <net/mana/gdma.h>
+ #include <net/mana/shm_channel.h>
+
+ #define PAGE_FRAME_L48_WIDTH_BYTES 6
+@@ -155,8 +156,8 @@ int mana_smc_setup_hwc(struct shm_channel *sc, bool reset_vf, u64 eq_addr,
+ return err;
+ }
+
+- if (!PAGE_ALIGNED(eq_addr) || !PAGE_ALIGNED(cq_addr) ||
+- !PAGE_ALIGNED(rq_addr) || !PAGE_ALIGNED(sq_addr))
++ if (!MANA_PAGE_ALIGNED(eq_addr) || !MANA_PAGE_ALIGNED(cq_addr) ||
++ !MANA_PAGE_ALIGNED(rq_addr) || !MANA_PAGE_ALIGNED(sq_addr))
+ return -EINVAL;
+
+ if ((eq_msix_index & VECTOR_MASK) != eq_msix_index)
+@@ -183,7 +184,7 @@ int mana_smc_setup_hwc(struct shm_channel *sc, bool reset_vf, u64 eq_addr,
+
+ /* EQ addr: low 48 bits of frame address */
+ shmem = (u64 *)ptr;
+- frame_addr = PHYS_PFN(eq_addr);
++ frame_addr = MANA_PFN(eq_addr);
+ *shmem = frame_addr & PAGE_FRAME_L48_MASK;
+ all_addr_h4bits |= (frame_addr >> PAGE_FRAME_L48_WIDTH_BITS) <<
+ (frame_addr_seq++ * PAGE_FRAME_H4_WIDTH_BITS);
+@@ -191,7 +192,7 @@ int mana_smc_setup_hwc(struct shm_channel *sc, bool reset_vf, u64 eq_addr,
+
+ /* CQ addr: low 48 bits of frame address */
+ shmem = (u64 *)ptr;
+- frame_addr = PHYS_PFN(cq_addr);
++ frame_addr = MANA_PFN(cq_addr);
+ *shmem = frame_addr & PAGE_FRAME_L48_MASK;
+ all_addr_h4bits |= (frame_addr >> PAGE_FRAME_L48_WIDTH_BITS) <<
+ (frame_addr_seq++ * PAGE_FRAME_H4_WIDTH_BITS);
+@@ -199,7 +200,7 @@ int mana_smc_setup_hwc(struct shm_channel *sc, bool reset_vf, u64 eq_addr,
+
+ /* RQ addr: low 48 bits of frame address */
+ shmem = (u64 *)ptr;
+- frame_addr = PHYS_PFN(rq_addr);
++ frame_addr = MANA_PFN(rq_addr);
+ *shmem = frame_addr & PAGE_FRAME_L48_MASK;
+ all_addr_h4bits |= (frame_addr >> PAGE_FRAME_L48_WIDTH_BITS) <<
+ (frame_addr_seq++ * PAGE_FRAME_H4_WIDTH_BITS);
+@@ -207,7 +208,7 @@ int mana_smc_setup_hwc(struct shm_channel *sc, bool reset_vf, u64 eq_addr,
+
+ /* SQ addr: low 48 bits of frame address */
+ shmem = (u64 *)ptr;
+- frame_addr = PHYS_PFN(sq_addr);
++ frame_addr = MANA_PFN(sq_addr);
+ *shmem = frame_addr & PAGE_FRAME_L48_MASK;
+ all_addr_h4bits |= (frame_addr >> PAGE_FRAME_L48_WIDTH_BITS) <<
+ (frame_addr_seq++ * PAGE_FRAME_H4_WIDTH_BITS);
+diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h
+index 88b6ef7ce1a6e..3965343fdee0c 100644
+--- a/include/net/mana/gdma.h
++++ b/include/net/mana/gdma.h
+@@ -222,7 +222,15 @@ struct gdma_dev {
+ struct auxiliary_device *adev;
+ };
+
+-#define MINIMUM_SUPPORTED_PAGE_SIZE PAGE_SIZE
++/* MANA_PAGE_SIZE is the DMA unit */
++#define MANA_PAGE_SHIFT 12
++#define MANA_PAGE_SIZE BIT(MANA_PAGE_SHIFT)
++#define MANA_PAGE_ALIGN(x) ALIGN((x), MANA_PAGE_SIZE)
++#define MANA_PAGE_ALIGNED(addr) IS_ALIGNED((unsigned long)(addr), MANA_PAGE_SIZE)
++#define MANA_PFN(a) ((a) >> MANA_PAGE_SHIFT)
++
++/* Required by HW */
++#define MANA_MIN_QSIZE MANA_PAGE_SIZE
+
+ #define GDMA_CQE_SIZE 64
+ #define GDMA_EQE_SIZE 16
+diff --git a/include/net/mana/mana.h b/include/net/mana/mana.h
+index 28e110f733ffd..7892b79854f62 100644
+--- a/include/net/mana/mana.h
++++ b/include/net/mana/mana.h
+@@ -42,7 +42,8 @@ enum TRI_STATE {
+
+ #define MAX_SEND_BUFFERS_PER_QUEUE 256
+
+-#define EQ_SIZE (8 * PAGE_SIZE)
++#define EQ_SIZE (8 * MANA_PAGE_SIZE)
++
+ #define LOG2_EQ_THROTTLE 3
+
+ #define MAX_PORTS_IN_MANA_DEV 256
+--
+2.43.0
+
--- /dev/null
+From f6f355125170e3b913622aeb514bd5202f91eb99 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 13 May 2024 13:29:01 -0700
+Subject: net: mana: Enable MANA driver on ARM64 with 4K page size
+
+From: Haiyang Zhang <haiyangz@microsoft.com>
+
+[ Upstream commit 40a1d11fc670ac03c5dc2e5a9724b330e74f38b0 ]
+
+Change the Kconfig dependency, so this driver can be built and run on ARM64
+with 4K page size.
+16/64K page sizes are not supported yet.
+
+Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
+Link: https://lore.kernel.org/r/1715632141-8089-1-git-send-email-haiyangz@microsoft.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Stable-dep-of: 9e517a8e9d9a ("RDMA/mana_ib: use the correct page table index based on hardware page size")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/net/ethernet/microsoft/Kconfig | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/net/ethernet/microsoft/Kconfig b/drivers/net/ethernet/microsoft/Kconfig
+index 01eb7445ead95..286f0d5697a16 100644
+--- a/drivers/net/ethernet/microsoft/Kconfig
++++ b/drivers/net/ethernet/microsoft/Kconfig
+@@ -17,7 +17,8 @@ if NET_VENDOR_MICROSOFT
+
+ config MICROSOFT_MANA
+ tristate "Microsoft Azure Network Adapter (MANA) support"
+- depends on PCI_MSI && X86_64
++ depends on PCI_MSI
++ depends on X86_64 || (ARM64 && !CPU_BIG_ENDIAN && ARM64_4K_PAGES)
+ depends on PCI_HYPERV
+ select AUXILIARY_BUS
+ select PAGE_POOL
+--
+2.43.0
+
--- /dev/null
+From 825a577f1cd2fb4ed109c396a3015f1c139a73f3 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Sat, 9 Sep 2023 16:18:13 +0200
+Subject: platform/x86: x86-android-tablets: Create a platform_device from
+ module_init()
+
+From: Hans de Goede <hdegoede@redhat.com>
+
+[ Upstream commit 8b57d33a6fdbb53d03da762b31e65a1027f74caf ]
+
+Create a platform_device from module_init() and change
+x86_android_tablet_init() / cleanup() into platform_device
+probe() and remove() functions.
+
+This is a preparation patch for refactoring x86_android_tablet_get_gpiod()
+to no longer use gpiolib private functions like gpiochip_find().
+
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+Acked-by: Linus Walleij <linus.walleij@linaro.org>
+Link: https://lore.kernel.org/r/20230909141816.58358-6-hdegoede@redhat.com
+Stable-dep-of: 2fae3129c0c0 ("platform/x86: x86-android-tablets: Fix use after free on platform_device_register() errors")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ .../platform/x86/x86-android-tablets/core.c | 51 ++++++++++++++-----
+ 1 file changed, 38 insertions(+), 13 deletions(-)
+
+diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c
+index 2fd6060a31bb0..ebfd9a3dac957 100644
+--- a/drivers/platform/x86/x86-android-tablets/core.c
++++ b/drivers/platform/x86/x86-android-tablets/core.c
+@@ -25,6 +25,8 @@
+ #include "../../../gpio/gpiolib.h"
+ #include "../../../gpio/gpiolib-acpi.h"
+
++static struct platform_device *x86_android_tablet_device;
++
+ static int gpiochip_find_match_label(struct gpio_chip *gc, void *data)
+ {
+ return gc->label && !strcmp(gc->label, data);
+@@ -224,7 +226,7 @@ static __init int x86_instantiate_serdev(const struct x86_serdev_info *info, int
+ return ret;
+ }
+
+-static void x86_android_tablet_cleanup(void)
++static void x86_android_tablet_remove(struct platform_device *pdev)
+ {
+ int i;
+
+@@ -255,7 +257,7 @@ static void x86_android_tablet_cleanup(void)
+ software_node_unregister(bat_swnode);
+ }
+
+-static __init int x86_android_tablet_init(void)
++static __init int x86_android_tablet_probe(struct platform_device *pdev)
+ {
+ const struct x86_dev_info *dev_info;
+ const struct dmi_system_id *id;
+@@ -267,6 +269,8 @@ static __init int x86_android_tablet_init(void)
+ return -ENODEV;
+
+ dev_info = id->driver_data;
++ /* Allow x86_android_tablet_device use before probe() exits */
++ x86_android_tablet_device = pdev;
+
+ /*
+ * The broken DSDTs on these devices often also include broken
+@@ -303,7 +307,7 @@ static __init int x86_android_tablet_init(void)
+ if (dev_info->init) {
+ ret = dev_info->init();
+ if (ret < 0) {
+- x86_android_tablet_cleanup();
++ x86_android_tablet_remove(pdev);
+ return ret;
+ }
+ exit_handler = dev_info->exit;
+@@ -311,7 +315,7 @@ static __init int x86_android_tablet_init(void)
+
+ i2c_clients = kcalloc(dev_info->i2c_client_count, sizeof(*i2c_clients), GFP_KERNEL);
+ if (!i2c_clients) {
+- x86_android_tablet_cleanup();
++ x86_android_tablet_remove(pdev);
+ return -ENOMEM;
+ }
+
+@@ -319,7 +323,7 @@ static __init int x86_android_tablet_init(void)
+ for (i = 0; i < i2c_client_count; i++) {
+ ret = x86_instantiate_i2c_client(dev_info, i);
+ if (ret < 0) {
+- x86_android_tablet_cleanup();
++ x86_android_tablet_remove(pdev);
+ return ret;
+ }
+ }
+@@ -327,7 +331,7 @@ static __init int x86_android_tablet_init(void)
+ /* + 1 to make space for (optional) gpio_keys_button pdev */
+ pdevs = kcalloc(dev_info->pdev_count + 1, sizeof(*pdevs), GFP_KERNEL);
+ if (!pdevs) {
+- x86_android_tablet_cleanup();
++ x86_android_tablet_remove(pdev);
+ return -ENOMEM;
+ }
+
+@@ -335,14 +339,14 @@ static __init int x86_android_tablet_init(void)
+ for (i = 0; i < pdev_count; i++) {
+ pdevs[i] = platform_device_register_full(&dev_info->pdev_info[i]);
+ if (IS_ERR(pdevs[i])) {
+- x86_android_tablet_cleanup();
++ x86_android_tablet_remove(pdev);
+ return PTR_ERR(pdevs[i]);
+ }
+ }
+
+ serdevs = kcalloc(dev_info->serdev_count, sizeof(*serdevs), GFP_KERNEL);
+ if (!serdevs) {
+- x86_android_tablet_cleanup();
++ x86_android_tablet_remove(pdev);
+ return -ENOMEM;
+ }
+
+@@ -350,7 +354,7 @@ static __init int x86_android_tablet_init(void)
+ for (i = 0; i < serdev_count; i++) {
+ ret = x86_instantiate_serdev(&dev_info->serdev_info[i], i);
+ if (ret < 0) {
+- x86_android_tablet_cleanup();
++ x86_android_tablet_remove(pdev);
+ return ret;
+ }
+ }
+@@ -361,7 +365,7 @@ static __init int x86_android_tablet_init(void)
+
+ buttons = kcalloc(dev_info->gpio_button_count, sizeof(*buttons), GFP_KERNEL);
+ if (!buttons) {
+- x86_android_tablet_cleanup();
++ x86_android_tablet_remove(pdev);
+ return -ENOMEM;
+ }
+
+@@ -369,7 +373,7 @@ static __init int x86_android_tablet_init(void)
+ ret = x86_android_tablet_get_gpiod(dev_info->gpio_button[i].chip,
+ dev_info->gpio_button[i].pin, &gpiod);
+ if (ret < 0) {
+- x86_android_tablet_cleanup();
++ x86_android_tablet_remove(pdev);
+ return ret;
+ }
+
+@@ -384,7 +388,7 @@ static __init int x86_android_tablet_init(void)
+ PLATFORM_DEVID_AUTO,
+ &pdata, sizeof(pdata));
+ if (IS_ERR(pdevs[pdev_count])) {
+- x86_android_tablet_cleanup();
++ x86_android_tablet_remove(pdev);
+ return PTR_ERR(pdevs[pdev_count]);
+ }
+ pdev_count++;
+@@ -393,8 +397,29 @@ static __init int x86_android_tablet_init(void)
+ return 0;
+ }
+
++static struct platform_driver x86_android_tablet_driver = {
++ .driver = {
++ .name = KBUILD_MODNAME,
++ },
++ .remove_new = x86_android_tablet_remove,
++};
++
++static int __init x86_android_tablet_init(void)
++{
++ x86_android_tablet_device = platform_create_bundle(&x86_android_tablet_driver,
++ x86_android_tablet_probe,
++ NULL, 0, NULL, 0);
++
++ return PTR_ERR_OR_ZERO(x86_android_tablet_device);
++}
+ module_init(x86_android_tablet_init);
+-module_exit(x86_android_tablet_cleanup);
++
++static void __exit x86_android_tablet_exit(void)
++{
++ platform_device_unregister(x86_android_tablet_device);
++ platform_driver_unregister(&x86_android_tablet_driver);
++}
++module_exit(x86_android_tablet_exit);
+
+ MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+ MODULE_DESCRIPTION("X86 Android tablets DSDT fixups driver");
+--
+2.43.0
+
--- /dev/null
+From 43f954625e8f70e0b77928d363f85ee86b5be406 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Sat, 5 Oct 2024 15:05:45 +0200
+Subject: platform/x86: x86-android-tablets: Fix use after free on
+ platform_device_register() errors
+
+From: Hans de Goede <hdegoede@redhat.com>
+
+[ Upstream commit 2fae3129c0c08e72b1fe93e61fd8fd203252094a ]
+
+x86_android_tablet_remove() frees the pdevs[] array, so it should not
+be used after calling x86_android_tablet_remove().
+
+When platform_device_register() fails, store the pdevs[x] PTR_ERR() value
+into the local ret variable before calling x86_android_tablet_remove()
+to avoid using pdevs[] after it has been freed.
+
+Fixes: 5eba0141206e ("platform/x86: x86-android-tablets: Add support for instantiating platform-devs")
+Fixes: e2200d3f26da ("platform/x86: x86-android-tablets: Add gpio_keys support to x86_android_tablet_init()")
+Cc: stable@vger.kernel.org
+Reported-by: Aleksandr Burakov <a.burakov@rosalinux.ru>
+Closes: https://lore.kernel.org/platform-driver-x86/20240917120458.7300-1-a.burakov@rosalinux.ru/
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+Link: https://lore.kernel.org/r/20241005130545.64136-1-hdegoede@redhat.com
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/platform/x86/x86-android-tablets/core.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c
+index ebfd9a3dac957..a0fa0b6859c9c 100644
+--- a/drivers/platform/x86/x86-android-tablets/core.c
++++ b/drivers/platform/x86/x86-android-tablets/core.c
+@@ -339,8 +339,9 @@ static __init int x86_android_tablet_probe(struct platform_device *pdev)
+ for (i = 0; i < pdev_count; i++) {
+ pdevs[i] = platform_device_register_full(&dev_info->pdev_info[i]);
+ if (IS_ERR(pdevs[i])) {
++ ret = PTR_ERR(pdevs[i]);
+ x86_android_tablet_remove(pdev);
+- return PTR_ERR(pdevs[i]);
++ return ret;
+ }
+ }
+
+@@ -388,8 +389,9 @@ static __init int x86_android_tablet_probe(struct platform_device *pdev)
+ PLATFORM_DEVID_AUTO,
+ &pdata, sizeof(pdata));
+ if (IS_ERR(pdevs[pdev_count])) {
++ ret = PTR_ERR(pdevs[pdev_count]);
+ x86_android_tablet_remove(pdev);
+- return PTR_ERR(pdevs[pdev_count]);
++ return ret;
+ }
+ pdev_count++;
+ }
+--
+2.43.0
+
--- /dev/null
+From 684b9f7be346ee40a627d3b957b07c29a3fabc74 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Tue, 17 Sep 2024 23:04:46 +0200
+Subject: r8169: add tally counter fields added with RTL8125
+
+From: Heiner Kallweit <hkallweit1@gmail.com>
+
+[ Upstream commit ced8e8b8f40accfcce4a2bbd8b150aa76d5eff9a ]
+
+RTL8125 added fields to the tally counter, what may result in the chip
+dma'ing these new fields to unallocated memory. Therefore make sure
+that the allocated memory area is big enough to hold all of the
+tally counter values, even if we use only parts of it.
+
+Fixes: f1bce4ad2f1c ("r8169: add support for RTL8125")
+Cc: stable@vger.kernel.org
+Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
+Reviewed-by: Simon Horman <horms@kernel.org>
+Link: https://patch.msgid.link/741d26a9-2b2b-485d-91d9-ecb302e345b5@gmail.com
+Signed-off-by: Paolo Abeni <pabeni@redhat.com>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/net/ethernet/realtek/r8169_main.c | 27 +++++++++++++++++++++++
+ 1 file changed, 27 insertions(+)
+
+diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
+index 382ba8b04cbfa..b499d8ea6d216 100644
+--- a/drivers/net/ethernet/realtek/r8169_main.c
++++ b/drivers/net/ethernet/realtek/r8169_main.c
+@@ -567,6 +567,33 @@ struct rtl8169_counters {
+ __le32 rx_multicast;
+ __le16 tx_aborted;
+ __le16 tx_underrun;
++ /* new since RTL8125 */
++ __le64 tx_octets;
++ __le64 rx_octets;
++ __le64 rx_multicast64;
++ __le64 tx_unicast64;
++ __le64 tx_broadcast64;
++ __le64 tx_multicast64;
++ __le32 tx_pause_on;
++ __le32 tx_pause_off;
++ __le32 tx_pause_all;
++ __le32 tx_deferred;
++ __le32 tx_late_collision;
++ __le32 tx_all_collision;
++ __le32 tx_aborted32;
++ __le32 align_errors32;
++ __le32 rx_frame_too_long;
++ __le32 rx_runt;
++ __le32 rx_pause_on;
++ __le32 rx_pause_off;
++ __le32 rx_pause_all;
++ __le32 rx_unknown_opcode;
++ __le32 rx_mac_error;
++ __le32 tx_underrun32;
++ __le32 rx_mac_missed;
++ __le32 rx_tcam_dropped;
++ __le32 tdu;
++ __le32 rdu;
+ };
+
+ struct rtl8169_tc_offsets {
+--
+2.43.0
+
--- /dev/null
+From 4d8f89ef94b242465c79b909f07bc2ad9b1f8ecb Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 9 Sep 2024 15:00:21 +0100
+Subject: r8169: Fix spelling mistake: "tx_underun" -> "tx_underrun"
+
+From: Colin Ian King <colin.i.king@gmail.com>
+
+[ Upstream commit 8df9439389a44fb2cc4ef695e08d6a8870b1616c ]
+
+There is a spelling mistake in the struct field tx_underun, rename
+it to tx_underrun.
+
+Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
+Reviewed-by: Simon Horman <horms@kernel.org>
+Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
+Link: https://patch.msgid.link/20240909140021.64884-1-colin.i.king@gmail.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Stable-dep-of: ced8e8b8f40a ("r8169: add tally counter fields added with RTL8125")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/net/ethernet/realtek/r8169_main.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
+index 8a732edac15a0..382ba8b04cbfa 100644
+--- a/drivers/net/ethernet/realtek/r8169_main.c
++++ b/drivers/net/ethernet/realtek/r8169_main.c
+@@ -566,7 +566,7 @@ struct rtl8169_counters {
+ __le64 rx_broadcast;
+ __le32 rx_multicast;
+ __le16 tx_aborted;
+- __le16 tx_underun;
++ __le16 tx_underrun;
+ };
+
+ struct rtl8169_tc_offsets {
+@@ -1726,7 +1726,7 @@ static void rtl8169_get_ethtool_stats(struct net_device *dev,
+ data[9] = le64_to_cpu(counters->rx_broadcast);
+ data[10] = le32_to_cpu(counters->rx_multicast);
+ data[11] = le16_to_cpu(counters->tx_aborted);
+- data[12] = le16_to_cpu(counters->tx_underun);
++ data[12] = le16_to_cpu(counters->tx_underrun);
+ }
+
+ static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+--
+2.43.0
+
--- /dev/null
+From eae359c686f29ebbb8f381bd6d96df6711c2f451 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Fri, 30 Aug 2024 08:16:32 -0700
+Subject: RDMA/mana_ib: use the correct page table index based on hardware page
+ size
+
+From: Long Li <longli@microsoft.com>
+
+[ Upstream commit 9e517a8e9d9a303bf9bde35e5c5374795544c152 ]
+
+MANA hardware uses 4k page size. When calculating the page table index,
+it should use the hardware page size, not the system page size.
+
+Cc: stable@vger.kernel.org
+Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
+Signed-off-by: Long Li <longli@microsoft.com>
+Link: https://patch.msgid.link/1725030993-16213-1-git-send-email-longli@linuxonhyperv.com
+Signed-off-by: Leon Romanovsky <leon@kernel.org>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/infiniband/hw/mana/main.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
+index 5dd5b9803f4e5..85717482a616e 100644
+--- a/drivers/infiniband/hw/mana/main.c
++++ b/drivers/infiniband/hw/mana/main.c
+@@ -359,7 +359,7 @@ int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem,
+
+ create_req->length = umem->length;
+ create_req->offset_in_page = ib_umem_dma_offset(umem, page_sz);
+- create_req->gdma_page_type = order_base_2(page_sz) - PAGE_SHIFT;
++ create_req->gdma_page_type = order_base_2(page_sz) - MANA_PAGE_SHIFT;
+ create_req->page_count = num_pages_total;
+
+ ibdev_dbg(&dev->ib_dev, "size_dma_region %lu num_pages_total %lu\n",
+--
+2.43.0
+
--- /dev/null
+From 3bd46c452f19aa999fbb5dea93093d4c8a176d72 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Thu, 8 Aug 2024 13:11:26 +0530
+Subject: remoteproc: k3-r5: Acquire mailbox handle during probe routine
+
+From: Beleswar Padhi <b-padhi@ti.com>
+
+[ Upstream commit f3f11cfe890733373ddbb1ce8991ccd4ee5e79e1 ]
+
+Acquire the mailbox handle during device probe and do not release handle
+in stop/detach routine or error paths. This removes the redundant
+requests for mbox handle later during rproc start/attach. This also
+allows to defer remoteproc driver's probe if mailbox is not probed yet.
+
+Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
+Link: https://lore.kernel.org/r/20240808074127.2688131-3-b-padhi@ti.com
+Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
+Stable-dep-of: 8fa052c29e50 ("remoteproc: k3-r5: Delay notification of wakeup event")
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/remoteproc/ti_k3_r5_remoteproc.c | 78 +++++++++---------------
+ 1 file changed, 30 insertions(+), 48 deletions(-)
+
+diff --git a/drivers/remoteproc/ti_k3_r5_remoteproc.c b/drivers/remoteproc/ti_k3_r5_remoteproc.c
+index 7c48f41808fa3..15fc663389096 100644
+--- a/drivers/remoteproc/ti_k3_r5_remoteproc.c
++++ b/drivers/remoteproc/ti_k3_r5_remoteproc.c
+@@ -194,6 +194,10 @@ static void k3_r5_rproc_mbox_callback(struct mbox_client *client, void *data)
+ const char *name = kproc->rproc->name;
+ u32 msg = omap_mbox_message(data);
+
++ /* Do not forward message from a detached core */
++ if (kproc->rproc->state == RPROC_DETACHED)
++ return;
++
+ dev_dbg(dev, "mbox msg: 0x%x\n", msg);
+
+ switch (msg) {
+@@ -229,6 +233,10 @@ static void k3_r5_rproc_kick(struct rproc *rproc, int vqid)
+ mbox_msg_t msg = (mbox_msg_t)vqid;
+ int ret;
+
++ /* Do not forward message to a detached core */
++ if (kproc->rproc->state == RPROC_DETACHED)
++ return;
++
+ /* send the index of the triggered virtqueue in the mailbox payload */
+ ret = mbox_send_message(kproc->mbox, (void *)msg);
+ if (ret < 0)
+@@ -399,12 +407,9 @@ static int k3_r5_rproc_request_mbox(struct rproc *rproc)
+ client->knows_txdone = false;
+
+ kproc->mbox = mbox_request_channel(client, 0);
+- if (IS_ERR(kproc->mbox)) {
+- ret = -EBUSY;
+- dev_err(dev, "mbox_request_channel failed: %ld\n",
+- PTR_ERR(kproc->mbox));
+- return ret;
+- }
++ if (IS_ERR(kproc->mbox))
++ return dev_err_probe(dev, PTR_ERR(kproc->mbox),
++ "mbox_request_channel failed\n");
+
+ /*
+ * Ping the remote processor, this is only for sanity-sake for now;
+@@ -552,10 +557,6 @@ static int k3_r5_rproc_start(struct rproc *rproc)
+ u32 boot_addr;
+ int ret;
+
+- ret = k3_r5_rproc_request_mbox(rproc);
+- if (ret)
+- return ret;
+-
+ boot_addr = rproc->bootaddr;
+ /* TODO: add boot_addr sanity checking */
+ dev_dbg(dev, "booting R5F core using boot addr = 0x%x\n", boot_addr);
+@@ -564,7 +565,7 @@ static int k3_r5_rproc_start(struct rproc *rproc)
+ core = kproc->core;
+ ret = ti_sci_proc_set_config(core->tsp, boot_addr, 0, 0);
+ if (ret)
+- goto put_mbox;
++ return ret;
+
+ /* unhalt/run all applicable cores */
+ if (cluster->mode == CLUSTER_MODE_LOCKSTEP) {
+@@ -580,13 +581,12 @@ static int k3_r5_rproc_start(struct rproc *rproc)
+ if (core != core0 && core0->rproc->state == RPROC_OFFLINE) {
+ dev_err(dev, "%s: can not start core 1 before core 0\n",
+ __func__);
+- ret = -EPERM;
+- goto put_mbox;
++ return -EPERM;
+ }
+
+ ret = k3_r5_core_run(core);
+ if (ret)
+- goto put_mbox;
++ return ret;
+ }
+
+ return 0;
+@@ -596,8 +596,6 @@ static int k3_r5_rproc_start(struct rproc *rproc)
+ if (k3_r5_core_halt(core))
+ dev_warn(core->dev, "core halt back failed\n");
+ }
+-put_mbox:
+- mbox_free_channel(kproc->mbox);
+ return ret;
+ }
+
+@@ -658,8 +656,6 @@ static int k3_r5_rproc_stop(struct rproc *rproc)
+ goto out;
+ }
+
+- mbox_free_channel(kproc->mbox);
+-
+ return 0;
+
+ unroll_core_halt:
+@@ -674,42 +670,22 @@ static int k3_r5_rproc_stop(struct rproc *rproc)
+ /*
+ * Attach to a running R5F remote processor (IPC-only mode)
+ *
+- * The R5F attach callback only needs to request the mailbox, the remote
+- * processor is already booted, so there is no need to issue any TI-SCI
+- * commands to boot the R5F cores in IPC-only mode. This callback is invoked
+- * only in IPC-only mode.
++ * The R5F attach callback is a NOP. The remote processor is already booted, and
++ * all required resources have been acquired during probe routine, so there is
++ * no need to issue any TI-SCI commands to boot the R5F cores in IPC-only mode.
++ * This callback is invoked only in IPC-only mode and exists because
++ * rproc_validate() checks for its existence.
+ */
+-static int k3_r5_rproc_attach(struct rproc *rproc)
+-{
+- struct k3_r5_rproc *kproc = rproc->priv;
+- struct device *dev = kproc->dev;
+- int ret;
+-
+- ret = k3_r5_rproc_request_mbox(rproc);
+- if (ret)
+- return ret;
+-
+- dev_info(dev, "R5F core initialized in IPC-only mode\n");
+- return 0;
+-}
++static int k3_r5_rproc_attach(struct rproc *rproc) { return 0; }
+
+ /*
+ * Detach from a running R5F remote processor (IPC-only mode)
+ *
+- * The R5F detach callback performs the opposite operation to attach callback
+- * and only needs to release the mailbox, the R5F cores are not stopped and
+- * will be left in booted state in IPC-only mode. This callback is invoked
+- * only in IPC-only mode.
++ * The R5F detach callback is a NOP. The R5F cores are not stopped and will be
++ * left in booted state in IPC-only mode. This callback is invoked only in
++ * IPC-only mode and exists for sanity sake.
+ */
+-static int k3_r5_rproc_detach(struct rproc *rproc)
+-{
+- struct k3_r5_rproc *kproc = rproc->priv;
+- struct device *dev = kproc->dev;
+-
+- mbox_free_channel(kproc->mbox);
+- dev_info(dev, "R5F core deinitialized in IPC-only mode\n");
+- return 0;
+-}
++static int k3_r5_rproc_detach(struct rproc *rproc) { return 0; }
+
+ /*
+ * This function implements the .get_loaded_rsc_table() callback and is used
+@@ -1277,6 +1253,10 @@ static int k3_r5_cluster_rproc_init(struct platform_device *pdev)
+ kproc->rproc = rproc;
+ core->rproc = rproc;
+
++ ret = k3_r5_rproc_request_mbox(rproc);
++ if (ret)
++ return ret;
++
+ ret = k3_r5_rproc_configure_mode(kproc);
+ if (ret < 0)
+ goto err_config;
+@@ -1395,6 +1375,8 @@ static void k3_r5_cluster_rproc_exit(void *data)
+ }
+ }
+
++ mbox_free_channel(kproc->mbox);
++
+ rproc_del(rproc);
+
+ k3_r5_reserved_mem_exit(kproc);
+--
+2.43.0
+
--- /dev/null
+From 776d9622c6d6a3b926e67c8bb1af1b5c35a9e15b Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Tue, 20 Aug 2024 16:20:04 +0530
+Subject: remoteproc: k3-r5: Delay notification of wakeup event
+
+From: Udit Kumar <u-kumar1@ti.com>
+
+[ Upstream commit 8fa052c29e509f3e47d56d7fc2ca28094d78c60a ]
+
+Few times, core1 was scheduled to boot first before core0, which leads
+to error:
+
+'k3_r5_rproc_start: can not start core 1 before core 0'.
+
+This was happening due to some scheduling between prepare and start
+callback. The probe function waits for event, which is getting
+triggered by prepare callback. To avoid above condition move event
+trigger to start instead of prepare callback.
+
+Fixes: 61f6f68447ab ("remoteproc: k3-r5: Wait for core0 power-up before powering up core1")
+Signed-off-by: Udit Kumar <u-kumar1@ti.com>
+[ Applied wakeup event trigger only for Split-Mode booted rprocs ]
+Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
+Cc: stable@vger.kernel.org
+Link: https://lore.kernel.org/r/20240820105004.2788327-1-b-padhi@ti.com
+Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/remoteproc/ti_k3_r5_remoteproc.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/remoteproc/ti_k3_r5_remoteproc.c b/drivers/remoteproc/ti_k3_r5_remoteproc.c
+index 15fc663389096..5491b1b17ca36 100644
+--- a/drivers/remoteproc/ti_k3_r5_remoteproc.c
++++ b/drivers/remoteproc/ti_k3_r5_remoteproc.c
+@@ -469,8 +469,6 @@ static int k3_r5_rproc_prepare(struct rproc *rproc)
+ ret);
+ return ret;
+ }
+- core->released_from_reset = true;
+- wake_up_interruptible(&cluster->core_transition);
+
+ /*
+ * Newer IP revisions like on J7200 SoCs support h/w auto-initialization
+@@ -587,6 +585,9 @@ static int k3_r5_rproc_start(struct rproc *rproc)
+ ret = k3_r5_core_run(core);
+ if (ret)
+ return ret;
++
++ core->released_from_reset = true;
++ wake_up_interruptible(&cluster->core_transition);
+ }
+
+ return 0;
+--
+2.43.0
+
--- /dev/null
+From 07c94e3c55806362787fcb3fb61f17303f871a27 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Thu, 3 Oct 2024 07:29:05 -0400
+Subject: sched: psi: fix bogus pressure spikes from aggregation race
+
+From: Johannes Weiner <hannes@cmpxchg.org>
+
+[ Upstream commit 3840cbe24cf060ea05a585ca497814609f5d47d1 ]
+
+Brandon reports sporadic, non-sensical spikes in cumulative pressure
+time (total=) when reading cpu.pressure at a high rate. This is due to
+a race condition between reader aggregation and tasks changing states.
+
+While it affects all states and all resources captured by PSI, in
+practice it most likely triggers with CPU pressure, since scheduling
+events are so frequent compared to other resource events.
+
+The race context is the live snooping of ongoing stalls during a
+pressure read. The read aggregates per-cpu records for stalls that
+have concluded, but will also incorporate ad-hoc the duration of any
+active state that hasn't been recorded yet. This is important to get
+timely measurements of ongoing stalls. Those ad-hoc samples are
+calculated on-the-fly up to the current time on that CPU; since the
+stall hasn't concluded, it's expected that this is the minimum amount
+of stall time that will enter the per-cpu records once it does.
+
+The problem is that the path that concludes the state uses a CPU clock
+read that is not synchronized against aggregators; the clock is read
+outside of the seqlock protection. This allows aggregators to race and
+snoop a stall with a longer duration than will actually be recorded.
+
+With the recorded stall time being less than the last snapshot
+remembered by the aggregator, a subsequent sample will underflow and
+observe a bogus delta value, resulting in an erratic jump in pressure.
+
+Fix this by moving the clock read of the state change into the seqlock
+protection. This ensures no aggregation can snoop live stalls past the
+time that's recorded when the state concludes.
+
+Reported-by: Brandon Duffany <brandon@buildbuddy.io>
+Link: https://bugzilla.kernel.org/show_bug.cgi?id=219194
+Link: https://lore.kernel.org/lkml/20240827121851.GB438928@cmpxchg.org/
+Fixes: df77430639c9 ("psi: Reduce calls to sched_clock() in psi")
+Cc: stable@vger.kernel.org
+Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
+Reviewed-by: Chengming Zhou <chengming.zhou@linux.dev>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ kernel/sched/psi.c | 26 ++++++++++++--------------
+ 1 file changed, 12 insertions(+), 14 deletions(-)
+
+diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c
+index 431971acc7632..f97e1473389ff 100644
+--- a/kernel/sched/psi.c
++++ b/kernel/sched/psi.c
+@@ -776,13 +776,14 @@ static void record_times(struct psi_group_cpu *groupc, u64 now)
+ }
+
+ static void psi_group_change(struct psi_group *group, int cpu,
+- unsigned int clear, unsigned int set, u64 now,
++ unsigned int clear, unsigned int set,
+ bool wake_clock)
+ {
+ struct psi_group_cpu *groupc;
+ unsigned int t, m;
+ enum psi_states s;
+ u32 state_mask;
++ u64 now;
+
+ lockdep_assert_rq_held(cpu_rq(cpu));
+ groupc = per_cpu_ptr(group->pcpu, cpu);
+@@ -797,6 +798,7 @@ static void psi_group_change(struct psi_group *group, int cpu,
+ * SOME and FULL time these may have resulted in.
+ */
+ write_seqcount_begin(&groupc->seq);
++ now = cpu_clock(cpu);
+
+ /*
+ * Start with TSK_ONCPU, which doesn't have a corresponding
+@@ -910,18 +912,15 @@ void psi_task_change(struct task_struct *task, int clear, int set)
+ {
+ int cpu = task_cpu(task);
+ struct psi_group *group;
+- u64 now;
+
+ if (!task->pid)
+ return;
+
+ psi_flags_change(task, clear, set);
+
+- now = cpu_clock(cpu);
+-
+ group = task_psi_group(task);
+ do {
+- psi_group_change(group, cpu, clear, set, now, true);
++ psi_group_change(group, cpu, clear, set, true);
+ } while ((group = group->parent));
+ }
+
+@@ -930,7 +929,6 @@ void psi_task_switch(struct task_struct *prev, struct task_struct *next,
+ {
+ struct psi_group *group, *common = NULL;
+ int cpu = task_cpu(prev);
+- u64 now = cpu_clock(cpu);
+
+ if (next->pid) {
+ psi_flags_change(next, 0, TSK_ONCPU);
+@@ -947,7 +945,7 @@ void psi_task_switch(struct task_struct *prev, struct task_struct *next,
+ break;
+ }
+
+- psi_group_change(group, cpu, 0, TSK_ONCPU, now, true);
++ psi_group_change(group, cpu, 0, TSK_ONCPU, true);
+ } while ((group = group->parent));
+ }
+
+@@ -985,7 +983,7 @@ void psi_task_switch(struct task_struct *prev, struct task_struct *next,
+ do {
+ if (group == common)
+ break;
+- psi_group_change(group, cpu, clear, set, now, wake_clock);
++ psi_group_change(group, cpu, clear, set, wake_clock);
+ } while ((group = group->parent));
+
+ /*
+@@ -997,7 +995,7 @@ void psi_task_switch(struct task_struct *prev, struct task_struct *next,
+ if ((prev->psi_flags ^ next->psi_flags) & ~TSK_ONCPU) {
+ clear &= ~TSK_ONCPU;
+ for (; group; group = group->parent)
+- psi_group_change(group, cpu, clear, set, now, wake_clock);
++ psi_group_change(group, cpu, clear, set, wake_clock);
+ }
+ }
+ }
+@@ -1008,8 +1006,8 @@ void psi_account_irqtime(struct rq *rq, struct task_struct *curr, struct task_st
+ int cpu = task_cpu(curr);
+ struct psi_group *group;
+ struct psi_group_cpu *groupc;
+- u64 now, irq;
+ s64 delta;
++ u64 irq;
+
+ if (!curr->pid)
+ return;
+@@ -1019,7 +1017,6 @@ void psi_account_irqtime(struct rq *rq, struct task_struct *curr, struct task_st
+ if (prev && task_psi_group(prev) == group)
+ return;
+
+- now = cpu_clock(cpu);
+ irq = irq_time_read(cpu);
+ delta = (s64)(irq - rq->psi_irq_time);
+ if (delta < 0)
+@@ -1027,12 +1024,15 @@ void psi_account_irqtime(struct rq *rq, struct task_struct *curr, struct task_st
+ rq->psi_irq_time = irq;
+
+ do {
++ u64 now;
++
+ if (!group->enabled)
+ continue;
+
+ groupc = per_cpu_ptr(group->pcpu, cpu);
+
+ write_seqcount_begin(&groupc->seq);
++ now = cpu_clock(cpu);
+
+ record_times(groupc, now);
+ groupc->times[PSI_IRQ_FULL] += delta;
+@@ -1231,11 +1231,9 @@ void psi_cgroup_restart(struct psi_group *group)
+ for_each_possible_cpu(cpu) {
+ struct rq *rq = cpu_rq(cpu);
+ struct rq_flags rf;
+- u64 now;
+
+ rq_lock_irq(rq, &rf);
+- now = cpu_clock(cpu);
+- psi_group_change(group, cpu, 0, 0, now, true);
++ psi_group_change(group, cpu, 0, 0, true);
+ rq_unlock_irq(rq, &rf);
+ }
+ }
+--
+2.43.0
+
drm-sched-add-locking-to-drm_sched_entity_modify_sched.patch
drm-amd-display-add-hdr-workaround-for-specific-edp.patch
drm-amd-display-fix-system-hang-while-resume-with-tbt-monitor.patch
+cpufreq-intel_pstate-make-hwp_notify_lock-a-raw-spin.patch
+kconfig-qconf-fix-buffer-overflow-in-debug-links.patch
+platform-x86-x86-android-tablets-create-a-platform_d.patch
+platform-x86-x86-android-tablets-fix-use-after-free-.patch
+i2c-create-debugfs-entry-per-adapter.patch
+i2c-core-lock-address-during-client-device-instantia.patch
+i2c-synquacer-remove-a-clk-reference-from-struct-syn.patch
+i2c-synquacer-deal-with-optional-pclk-correctly.patch
+arm64-cputype-add-neoverse-n3-definitions.patch
+arm64-errata-expand-speculative-ssbs-workaround-once.patch
+io_uring-net-harden-multishot-termination-case-for-r.patch
+uprobes-fix-kernel-info-leak-via-uprobes-vma.patch
+mm-z3fold-deprecate-config_z3fold.patch
+drm-amd-display-allow-backlight-to-go-below-amdgpu_d.patch
+build-id-require-program-headers-to-be-right-after-e.patch
+lib-buildid-harden-build-id-parsing-logic.patch
+sched-psi-fix-bogus-pressure-spikes-from-aggregation.patch
+net-mana-enable-mana-driver-on-arm64-with-4k-page-si.patch
+net-mana-add-support-for-page-sizes-other-than-4kb-o.patch
+rdma-mana_ib-use-the-correct-page-table-index-based-.patch
+media-i2c-imx335-enable-regulator-supplies.patch
+media-imx335-fix-reset-gpio-handling.patch
+remoteproc-k3-r5-acquire-mailbox-handle-during-probe.patch
+remoteproc-k3-r5-delay-notification-of-wakeup-event.patch
+dt-bindings-clock-qcom-add-missing-ufs-qref-clocks.patch
+dt-bindings-clock-qcom-add-gpll9-support-on-gcc-sc81.patch
+iio-pressure-bmp280-allow-multiple-chips-id-per-fami.patch
+iio-pressure-bmp280-improve-indentation-and-line-wra.patch
+iio-pressure-bmp280-use-bme-prefix-for-bme280-specif.patch
+iio-pressure-bmp280-fix-regmap-for-bmp280-device.patch
+iio-pressure-bmp280-fix-waiting-time-for-bmp3xx-conf.patch
+r8169-fix-spelling-mistake-tx_underun-tx_underrun.patch
+r8169-add-tally-counter-fields-added-with-rtl8125.patch
+clk-qcom-gcc-sc8180x-add-gpll9-support.patch
+acpi-battery-simplify-battery-hook-locking.patch
+acpi-battery-fix-possible-crash-when-unregistering-a.patch
+btrfs-relocation-return-bool-from-btrfs_should_ignor.patch
+btrfs-relocation-constify-parameters-where-possible.patch
+btrfs-drop-the-backref-cache-during-relocation-if-we.patch
--- /dev/null
+From c2a609463a8899c64a7d844f37dde9dedd6abf0d Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 7 Oct 2024 19:46:01 +0200
+Subject: uprobes: fix kernel info leak via "[uprobes]" vma
+
+From: Oleg Nesterov <oleg@redhat.com>
+
+commit 34820304cc2cd1804ee1f8f3504ec77813d29c8e upstream.
+
+xol_add_vma() maps the uninitialized page allocated by __create_xol_area()
+into userspace. On some architectures (x86) this memory is readable even
+without VM_READ, VM_EXEC results in the same pgprot_t as VM_EXEC|VM_READ,
+although this doesn't really matter, debugger can read this memory anyway.
+
+Link: https://lore.kernel.org/all/20240929162047.GA12611@redhat.com/
+
+Reported-by: Will Deacon <will@kernel.org>
+Fixes: d4b3b6384f98 ("uprobes/core: Allocate XOL slots for uprobes use")
+Cc: stable@vger.kernel.org
+Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
+Signed-off-by: Oleg Nesterov <oleg@redhat.com>
+Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ kernel/events/uprobes.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
+index 6876b7f152b10..6dac0b5798213 100644
+--- a/kernel/events/uprobes.c
++++ b/kernel/events/uprobes.c
+@@ -1491,7 +1491,7 @@ static struct xol_area *__create_xol_area(unsigned long vaddr)
+
+ area->xol_mapping.name = "[uprobes]";
+ area->xol_mapping.pages = area->pages;
+- area->pages[0] = alloc_page(GFP_HIGHUSER);
++ area->pages[0] = alloc_page(GFP_HIGHUSER | __GFP_ZERO);
+ if (!area->pages[0])
+ goto free_bitmap;
+ area->pages[1] = NULL;
+--
+2.43.0
+
projects / thirdparty / kernel / stable-queue.git / commitdiff
