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authorMostafa Saleh <smostafa@google.com>2025-04-30 16:27:09 +0000
committerMarc Zyngier <maz@kernel.org>2025-05-07 11:21:35 +0100
commitd683a8561889c1813fe2ad6082769c91e3cb71b3 (patch)
treeeb2a13127abce27a342d1ebca31cd886e058805b
parentdc1fd37a7f501731e488c1c6f86b2f591632a4ad (diff)
ubsan: Remove regs from report_ubsan_failure()
report_ubsan_failure() doesn't use argument regs, and soon it will be called from the hypervisor context were regs are not available. So, remove the unused argument. Signed-off-by: Mostafa Saleh <smostafa@google.com> Acked-by: Kees Cook <kees@kernel.org> Link: https://lore.kernel.org/r/20250430162713.1997569-3-smostafa@google.com Signed-off-by: Marc Zyngier <maz@kernel.org>
-rw-r--r--arch/arm64/kernel/traps.c2
-rw-r--r--arch/x86/kernel/traps.c2
-rw-r--r--include/linux/ubsan.h4
-rw-r--r--lib/ubsan.c2
4 files changed, 5 insertions, 5 deletions
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 224f927ac8af..9bfa5c944379 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -1118,7 +1118,7 @@ static struct break_hook kasan_break_hook = {
#ifdef CONFIG_UBSAN_TRAP
static int ubsan_handler(struct pt_regs *regs, unsigned long esr)
{
- die(report_ubsan_failure(regs, esr & UBSAN_BRK_MASK), regs, esr);
+ die(report_ubsan_failure(esr & UBSAN_BRK_MASK), regs, esr);
return DBG_HOOK_HANDLED;
}
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 9f88b8a78e50..4b5a7a1a8dde 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -351,7 +351,7 @@ static noinstr bool handle_bug(struct pt_regs *regs)
case BUG_UD1_UBSAN:
if (IS_ENABLED(CONFIG_UBSAN_TRAP)) {
pr_crit("%s at %pS\n",
- report_ubsan_failure(regs, ud_imm),
+ report_ubsan_failure(ud_imm),
(void *)regs->ip);
}
break;
diff --git a/include/linux/ubsan.h b/include/linux/ubsan.h
index d8219cbe09ff..c843816f5f68 100644
--- a/include/linux/ubsan.h
+++ b/include/linux/ubsan.h
@@ -3,9 +3,9 @@
#define _LINUX_UBSAN_H
#ifdef CONFIG_UBSAN_TRAP
-const char *report_ubsan_failure(struct pt_regs *regs, u32 check_type);
+const char *report_ubsan_failure(u32 check_type);
#else
-static inline const char *report_ubsan_failure(struct pt_regs *regs, u32 check_type)
+static inline const char *report_ubsan_failure(u32 check_type)
{
return NULL;
}
diff --git a/lib/ubsan.c b/lib/ubsan.c
index cdc1d31c3821..17993727fc96 100644
--- a/lib/ubsan.c
+++ b/lib/ubsan.c
@@ -25,7 +25,7 @@
* The mappings of struct SanitizerKind (the -fsanitize=xxx args) to
* enum SanitizerHandler (the traps) in Clang is in clang/lib/CodeGen/.
*/
-const char *report_ubsan_failure(struct pt_regs *regs, u32 check_type)
+const char *report_ubsan_failure(u32 check_type)
{
switch (check_type) {
#ifdef CONFIG_UBSAN_BOUNDS