Messages in this thread Patch in this message | | | Date | Fri, 14 Apr 2023 14:47:57 -0000 | From | "tip-bot2 for Josh Poimboeuf" <> | Subject | [tip: objtool/core] sched: Fix KCSAN noinstr violation |
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The following commit has been merged into the objtool/core branch of tip:
Commit-ID: e0b081d17a9f4e5c0cbb0e5fbeb1abe3de0f7e4e Gitweb: https://git.kernel.org/tip/e0b081d17a9f4e5c0cbb0e5fbeb1abe3de0f7e4e Author: Josh Poimboeuf <jpoimboe@kernel.org> AuthorDate: Wed, 12 Apr 2023 10:24:07 -07:00 Committer: Peter Zijlstra <peterz@infradead.org> CommitterDate: Fri, 14 Apr 2023 16:08:26 +02:00
sched: Fix KCSAN noinstr violation
With KCSAN enabled, end_of_stack() can get out-of-lined. Force it inline.
Fixes the following warnings:
vmlinux.o: warning: objtool: check_stackleak_irqoff+0x2b: call to end_of_stack() leaves .noinstr.text section
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/cc1b4d73d3a428a00d206242a68fdf99a934ca7b.1681320026.git.jpoimboe@kernel.org --- include/linux/sched/task_stack.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h index 5e799a4..f158b02 100644 --- a/include/linux/sched/task_stack.h +++ b/include/linux/sched/task_stack.h @@ -23,7 +23,7 @@ static __always_inline void *task_stack_page(const struct task_struct *task) #define setup_thread_stack(new,old) do { } while(0) -static inline unsigned long *end_of_stack(const struct task_struct *task) +static __always_inline unsigned long *end_of_stack(const struct task_struct *task) { #ifdef CONFIG_STACK_GROWSUP return (unsigned long *)((unsigned long)task->stack + THREAD_SIZE) - 1;
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