--- /dev/null
+From b73c3ccdca95c237750c981054997c71d33e09d7 Mon Sep 17 00:00:00 2001
+From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
+Date: Fri, 28 Feb 2025 15:37:02 +0100
+Subject: MIPS: cm: Fix warning if MIPS_CM is disabled
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
+
+commit b73c3ccdca95c237750c981054997c71d33e09d7 upstream.
+
+Commit e27fbe16af5c ("MIPS: cm: Detect CM quirks from device tree")
+introduced
+
+arch/mips/include/asm/mips-cm.h:119:13: error: ‘mips_cm_update_property’
+ defined but not used [-Werror=unused-function]
+
+Fix this by making empty function implementation inline
+
+Fixes: e27fbe16af5c ("MIPS: cm: Detect CM quirks from device tree")
+Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/mips/include/asm/mips-cm.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/mips/include/asm/mips-cm.h
++++ b/arch/mips/include/asm/mips-cm.h
+@@ -104,7 +104,7 @@ static inline bool mips_cm_present(void)
+ #ifdef CONFIG_MIPS_CM
+ extern void mips_cm_update_property(void);
+ #else
+-static void mips_cm_update_property(void) {}
++static inline void mips_cm_update_property(void) {}
+ #endif
+
+ /**
--- /dev/null
+From 26d7fb4fd4ca1180e2fa96587dea544563b4962a Mon Sep 17 00:00:00 2001
+From: Hannes Reinecke <hare@kernel.org>
+Date: Mon, 14 Apr 2025 14:05:09 +0200
+Subject: nvme: fixup scan failure for non-ANA multipath controllers
+
+From: Hannes Reinecke <hare@kernel.org>
+
+commit 26d7fb4fd4ca1180e2fa96587dea544563b4962a upstream.
+
+Commit 62baf70c3274 caused the ANA log page to be re-read, even on
+controllers that do not support ANA. While this should generally
+harmless, some controllers hang on the unsupported log page and
+never finish probing.
+
+Fixes: 62baf70c3274 ("nvme: re-read ANA log page after ns scan completes")
+Signed-off-by: Hannes Reinecke <hare@kernel.org>
+Tested-by: Srikanth Aithal <sraithal@amd.com>
+[hch: more detailed commit message]
+Signed-off-by: Christoph Hellwig <hch@lst.de>
+Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/nvme/host/core.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/nvme/host/core.c
++++ b/drivers/nvme/host/core.c
+@@ -3977,7 +3977,7 @@ static void nvme_scan_work(struct work_s
+ if (test_bit(NVME_AER_NOTICE_NS_CHANGED, &ctrl->events))
+ nvme_queue_scan(ctrl);
+ #ifdef CONFIG_NVME_MULTIPATH
+- else
++ else if (ctrl->ana_log_buf)
+ /* Re-read the ANA log page to not miss updates */
+ queue_work(nvme_wq, &ctrl->ana_work);
+ #endif
--- /dev/null
+From 0d7597749f5a3ac67851d3836635d084df15fb66 Mon Sep 17 00:00:00 2001
+From: Josh Poimboeuf <jpoimboe@kernel.org>
+Date: Mon, 31 Mar 2025 21:26:37 -0700
+Subject: objtool: Ignore end-of-section jumps for KCOV/GCOV
+
+From: Josh Poimboeuf <jpoimboe@kernel.org>
+
+commit 0d7597749f5a3ac67851d3836635d084df15fb66 upstream.
+
+When KCOV or GCOV is enabled, dead code can be left behind, in which
+case objtool silences unreachable and undefined behavior (fallthrough)
+warnings.
+
+Fallthrough warnings, and their variant "end of section" warnings, were
+silenced with the following commit:
+
+ 6b023c784204 ("objtool: Silence more KCOV warnings")
+
+Another variant of a fallthrough warning is a jump to the end of a
+function. If that function happens to be at the end of a section, the
+jump destination doesn't actually exist.
+
+Normally that would be a fatal objtool error, but for KCOV/GCOV it's
+just another undefined behavior fallthrough. Silence it like the
+others.
+
+Fixes the following warning:
+
+ drivers/iommu/dma-iommu.o: warning: objtool: iommu_dma_sw_msi+0x92: can't find jump dest instruction at .text+0x54d5
+
+Fixes: 6b023c784204 ("objtool: Silence more KCOV warnings")
+Reported-by: Randy Dunlap <rdunlap@infradead.org>
+Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
+Signed-off-by: Ingo Molnar <mingo@kernel.org>
+Cc: Linus Torvalds <torvalds@linux-foundation.org>
+Link: https://lore.kernel.org/r/08fbe7d7e1e20612206f1df253077b94f178d93e.1743481539.git.jpoimboe@kernel.org
+Closes: https://lore.kernel.org/314f8809-cd59-479b-97d7-49356bf1c8d1@infradead.org/
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/objtool/check.c | 22 ++++++++++++++++------
+ 1 file changed, 16 insertions(+), 6 deletions(-)
+
+--- a/tools/objtool/check.c
++++ b/tools/objtool/check.c
+@@ -1552,6 +1552,8 @@ static int add_jump_destinations(struct
+ unsigned long dest_off;
+
+ for_each_insn(file, insn) {
++ struct symbol *func = insn_func(insn);
++
+ if (insn->jump_dest) {
+ /*
+ * handle_group_alt() may have previously set
+@@ -1575,7 +1577,7 @@ static int add_jump_destinations(struct
+ } else if (reloc->sym->return_thunk) {
+ add_return_call(file, insn, true);
+ continue;
+- } else if (insn_func(insn)) {
++ } else if (func) {
+ /*
+ * External sibling call or internal sibling call with
+ * STT_FUNC reloc.
+@@ -1608,6 +1610,15 @@ static int add_jump_destinations(struct
+ continue;
+ }
+
++ /*
++ * GCOV/KCOV dead code can jump to the end of the
++ * function/section.
++ */
++ if (file->ignore_unreachables && func &&
++ dest_sec == insn->sec &&
++ dest_off == func->offset + func->len)
++ continue;
++
+ WARN_INSN(insn, "can't find jump dest instruction at %s+0x%lx",
+ dest_sec->name, dest_off);
+ return -1;
+@@ -1616,8 +1627,7 @@ static int add_jump_destinations(struct
+ /*
+ * Cross-function jump.
+ */
+- if (insn_func(insn) && insn_func(jump_dest) &&
+- insn_func(insn) != insn_func(jump_dest)) {
++ if (func && insn_func(jump_dest) && func != insn_func(jump_dest)) {
+
+ /*
+ * For GCC 8+, create parent/child links for any cold
+@@ -1634,10 +1644,10 @@ static int add_jump_destinations(struct
+ * case where the parent function's only reference to a
+ * subfunction is through a jump table.
+ */
+- if (!strstr(insn_func(insn)->name, ".cold") &&
++ if (!strstr(func->name, ".cold") &&
+ strstr(insn_func(jump_dest)->name, ".cold")) {
+- insn_func(insn)->cfunc = insn_func(jump_dest);
+- insn_func(jump_dest)->pfunc = insn_func(insn);
++ func->cfunc = insn_func(jump_dest);
++ insn_func(jump_dest)->pfunc = func;
+ }
+ }
+
--- /dev/null
+From 55c78035a1a8dfb05f1472018ce2a651701adb7d Mon Sep 17 00:00:00 2001
+From: Josh Poimboeuf <jpoimboe@kernel.org>
+Date: Mon, 31 Mar 2025 21:26:36 -0700
+Subject: objtool: Silence more KCOV warnings, part 2
+
+From: Josh Poimboeuf <jpoimboe@kernel.org>
+
+commit 55c78035a1a8dfb05f1472018ce2a651701adb7d upstream.
+
+Similar to GCOV, KCOV can leave behind dead code and undefined behavior.
+Warnings related to those should be ignored.
+
+The previous commit:
+
+ 6b023c784204 ("objtool: Silence more KCOV warnings")
+
+... only did so for CONFIG_CGOV_KERNEL. Also do it for CONFIG_KCOV, but
+for real this time.
+
+Fixes the following warning:
+
+ vmlinux.o: warning: objtool: synaptics_report_mt_data: unexpected end of section .text.synaptics_report_mt_data
+
+Fixes: 6b023c784204 ("objtool: Silence more KCOV warnings")
+Reported-by: kernel test robot <lkp@intel.com>
+Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
+Signed-off-by: Ingo Molnar <mingo@kernel.org>
+Cc: Linus Torvalds <torvalds@linux-foundation.org>
+Link: https://lore.kernel.org/r/a44ba16e194bcbc52c1cef3d3cd9051a62622723.1743481539.git.jpoimboe@kernel.org
+Closes: https://lore.kernel.org/oe-kbuild-all/202503282236.UhfRsF3B-lkp@intel.com/
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ scripts/Makefile.lib | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/scripts/Makefile.lib
++++ b/scripts/Makefile.lib
+@@ -268,7 +268,7 @@ objtool-args-$(CONFIG_SLS) += --sls
+ objtool-args-$(CONFIG_STACK_VALIDATION) += --stackval
+ objtool-args-$(CONFIG_HAVE_STATIC_CALL_INLINE) += --static-call
+ objtool-args-$(CONFIG_HAVE_UACCESS_VALIDATION) += --uaccess
+-objtool-args-$(CONFIG_GCOV_KERNEL) += --no-unreachable
++objtool-args-$(or $(CONFIG_GCOV_KERNEL),$(CONFIG_KCOV)) += --no-unreachable
+ objtool-args-$(CONFIG_PREFIX_SYMBOLS) += --prefix=$(CONFIG_FUNCTION_PADDING_BYTES)
+
+ objtool-args = $(objtool-args-y) \
net-dsa-mv88e6xxx-enable-.port_set_policy-for-6320-family.patch
net-dsa-mv88e6xxx-enable-stu-methods-for-6320-family.patch
iommu-handle-race-with-default-domain-setup.patch
+mips-cm-fix-warning-if-mips_cm-is-disabled.patch
+nvme-fixup-scan-failure-for-non-ana-multipath-controllers.patch
+objtool-ignore-end-of-section-jumps-for-kcov-gcov.patch
+objtool-silence-more-kcov-warnings-part-2.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
