[PATCH] x86: make serialize() always_inline
From: Juergen Gross
Date: Wed Dec 18 2024 - 05:09:39 EST
In order to allow serialize() to be used from noinstr code, make it
__always_inline.
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202412181756.aJvzih2K-lkp@xxxxxxxxx/
Fixes: 0ef8047b737d ("x86/static-call: provide a way to do very early static-call updates")
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
arch/x86/include/asm/special_insns.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h
index aec6e2d3aa1d..98bfc097389c 100644
--- a/arch/x86/include/asm/special_insns.h
+++ b/arch/x86/include/asm/special_insns.h
@@ -217,7 +217,7 @@ static inline int write_user_shstk_64(u64 __user *addr, u64 val)
#define nop() asm volatile ("nop")
-static inline void serialize(void)
+static __always_inline void serialize(void)
{
/* Instruction opcode for SERIALIZE; supported in binutils >= 2.35. */
asm volatile(".byte 0xf, 0x1, 0xe8" ::: "memory");
--
2.43.0