--- /dev/null
+From ea0c457c3326d6958207da9a1d09155a6656be09 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Fri, 14 Jun 2024 19:31:49 +0530
+Subject: ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your
+ kernel is fine."
+
+From: Raju Rangoju <Raju.Rangoju@amd.com>
+
+[ Upstream commit a83e1385b780d41307433ddbc86e3c528db031f0 ]
+
+Undo the modifications made in commit d410ee5109a1 ("ACPICA: avoid
+"Info: mapping multiple BARs. Your kernel is fine.""). The initial
+purpose of this commit was to stop memory mappings for operation
+regions from overlapping page boundaries, as it can trigger warnings
+if different page attributes are present.
+
+However, it was found that when this situation arises, mapping
+continues until the boundary's end, but there is still an attempt to
+read/write the entire length of the map, leading to a NULL pointer
+deference. For example, if a four-byte mapping request is made but
+only one byte is mapped because it hits the current page boundary's
+end, a four-byte read/write attempt is still made, resulting in a NULL
+pointer deference.
+
+Instead, map the entire length, as the ACPI specification does not
+mandate that it must be within the same page boundary. It is
+permissible for it to be mapped across different regions.
+
+Link: https://github.com/acpica/acpica/pull/954
+Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218849
+Fixes: d410ee5109a1 ("ACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine."")
+Co-developed-by: Sanath S <Sanath.S@amd.com>
+Signed-off-by: Sanath S <Sanath.S@amd.com>
+Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
+Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/acpi/acpica/exregion.c | 23 ++---------------------
+ 1 file changed, 2 insertions(+), 21 deletions(-)
+
+diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
+index 97bbfd07fcf75..2d99cbbf82d10 100644
+--- a/drivers/acpi/acpica/exregion.c
++++ b/drivers/acpi/acpica/exregion.c
+@@ -43,7 +43,6 @@ acpi_ex_system_memory_space_handler(u32 function,
+ struct acpi_mem_space_context *mem_info = region_context;
+ u32 length;
+ acpi_size map_length;
+- acpi_size page_boundary_map_length;
+ #ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
+ u32 remainder;
+ #endif
+@@ -120,26 +119,8 @@ acpi_ex_system_memory_space_handler(u32 function,
+ map_length = (acpi_size)
+ ((mem_info->address + mem_info->length) - address);
+
+- /*
+- * If mapping the entire remaining portion of the region will cross
+- * a page boundary, just map up to the page boundary, do not cross.
+- * On some systems, crossing a page boundary while mapping regions
+- * can cause warnings if the pages have different attributes
+- * due to resource management.
+- *
+- * This has the added benefit of constraining a single mapping to
+- * one page, which is similar to the original code that used a 4k
+- * maximum window.
+- */
+- page_boundary_map_length = (acpi_size)
+- (ACPI_ROUND_UP(address, ACPI_DEFAULT_PAGE_SIZE) - address);
+- if (page_boundary_map_length == 0) {
+- page_boundary_map_length = ACPI_DEFAULT_PAGE_SIZE;
+- }
+-
+- if (map_length > page_boundary_map_length) {
+- map_length = page_boundary_map_length;
+- }
++ if (map_length > ACPI_DEFAULT_PAGE_SIZE)
++ map_length = ACPI_DEFAULT_PAGE_SIZE;
+
+ /* Create a new mapping starting at the address given */
+
+--
+2.43.0
+
--- /dev/null
+From 98036d4daef9f8ffce58e85e0daed758139697cb Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Tue, 14 May 2024 13:52:31 +0300
+Subject: dmaengine: ioatdma: Fix missing kmem_cache_destroy()
+
+From: Nikita Shubin <n.shubin@yadro.com>
+
+[ Upstream commit 5422145d0b749ad554ada772133b9b20f9fb0ec8 ]
+
+Fix missing kmem_cache_destroy() for ioat_sed_cache in
+ioat_exit_module().
+
+Noticed via:
+
+```
+modprobe ioatdma
+rmmod ioatdma
+modprobe ioatdma
+debugfs: Directory 'ioat_sed_ent' with parent 'slab' already present!
+```
+
+Fixes: c0f28ce66ecf ("dmaengine: ioatdma: move all the init routines")
+Signed-off-by: Nikita Shubin <n.shubin@yadro.com>
+Acked-by: Dave Jiang <dave.jiang@intel.com>
+Link: https://lore.kernel.org/r/20240514-ioatdma_fixes-v1-1-2776a0913254@yadro.com
+Signed-off-by: Vinod Koul <vkoul@kernel.org>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/dma/ioat/init.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c
+index 0fec3c554fe35..673d0e32f589a 100644
+--- a/drivers/dma/ioat/init.c
++++ b/drivers/dma/ioat/init.c
+@@ -1429,6 +1429,7 @@ module_init(ioat_init_module);
+ static void __exit ioat_exit_module(void)
+ {
+ pci_unregister_driver(&ioat_pci_driver);
++ kmem_cache_destroy(ioat_sed_cache);
+ kmem_cache_destroy(ioat_cache);
+ }
+ module_exit(ioat_exit_module);
+--
+2.43.0
+
--- /dev/null
+From bae9c9f16c8ec42c9240e6a621743aea1513bf29 Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sashal@kernel.org>
+Date: Mon, 10 Jun 2024 20:55:32 +0100
+Subject: regulator: core: Fix modpost error "regulator_get_regmap" undefined
+
+From: Biju Das <biju.das.jz@bp.renesas.com>
+
+[ Upstream commit 3f60497c658d2072714d097a177612d34b34aa3d ]
+
+Fix the modpost error "regulator_get_regmap" undefined by adding export
+symbol.
+
+Fixes: 04eca28cde52 ("regulator: Add helpers for low-level register access")
+Reported-by: kernel test robot <lkp@intel.com>
+Closes: https://lore.kernel.org/oe-kbuild-all/202406110117.mk5UR3VZ-lkp@intel.com
+Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
+Link: https://lore.kernel.org/r/20240610195532.175942-1-biju.das.jz@bp.renesas.com
+Signed-off-by: Mark Brown <broonie@kernel.org>
+Signed-off-by: Sasha Levin <sashal@kernel.org>
+---
+ drivers/regulator/core.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
+index 14f9977f1ec08..6831ce0ae49dd 100644
+--- a/drivers/regulator/core.c
++++ b/drivers/regulator/core.c
+@@ -2710,6 +2710,7 @@ struct regmap *regulator_get_regmap(struct regulator *regulator)
+
+ return map ? map : ERR_PTR(-EOPNOTSUPP);
+ }
++EXPORT_SYMBOL_GPL(regulator_get_regmap);
+
+ /**
+ * regulator_get_hardware_vsel_register - get the HW voltage selector register
+--
+2.43.0
+
projects / thirdparty / kernel / stable-queue.git / commitdiff
