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x86: Always inline on_thread_stack() and current_top_of_stack()

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Becaues GCC clearly lost it's marbles again...

vmlinux.o: warning: objtool: enter_from_user_mode+0x4e: call to on_thread_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x53: call to on_thread_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x4e: call to on_thread_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x4e: call to on_thread_stack() leaves .noinstr.text section

vmlinux.o: warning: objtool: enter_from_user_mode+0x4e: call to current_top_of_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x53: call to current_top_of_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x4e: call to current_top_of_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x4e: call to current_top_of_stack() leaves .noinstr.text section

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220526105958.071435483@infradead.org
This commit is contained in:
Peter Zijlstra
2022-05-07 13:37:45 +02:00
parent 656d054e0a
commit 1894a40305
1 changed files with 2 additions and 2 deletions
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arch/x86/include/asm/processor.h
+2 -2
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@@ -559,7 +559,7 @@ static __always_inline void native_swapgs(void)
#endif
}
static inline unsigned long current_top_of_stack(void)
static __always_inline unsigned long current_top_of_stack(void)
{
/*
* We can't read directly from tss.sp0: sp0 on x86_32 is special in
@@ -569,7 +569,7 @@ static inline unsigned long current_top_of_stack(void)
return this_cpu_read_stable(cpu_current_top_of_stack);
}
static inline bool on_thread_stack(void)
static __always_inline bool on_thread_stack(void)
{
return (unsigned long)(current_top_of_stack() -
current_stack_pointer) < THREAD_SIZE;