[tip: x86/alternatives] x86/alternative: Convert alternative()

From: tip-bot2 for Borislav Petkov (AMD)
Date: Tue Jun 11 2024 - 12:56:52 EST


The following commit has been merged into the x86/alternatives branch of tip:

Commit-ID: b94c1fe10be544070f53e4a1e5164087e446945c
Gitweb: https://git.kernel.org/tip/b94c1fe10be544070f53e4a1e5164087e446945c
Author: Borislav Petkov (AMD) <bp@xxxxxxxxx>
AuthorDate: Fri, 07 Jun 2024 13:16:50 +02:00
Committer: Borislav Petkov (AMD) <bp@xxxxxxxxx>
CommitterDate: Tue, 11 Jun 2024 17:14:26 +02:00

x86/alternative: Convert alternative()

Split conversion deliberately into minimal pieces to ease bisection
because debugging alternatives is a nightmare.

Signed-off-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240607111701.8366-4-bp@xxxxxxxxxx
---
arch/x86/include/asm/alternative.h | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 7d9ebc5..c05bff2 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -316,14 +316,11 @@ static inline int alternatives_text_reserved(void *start, void *end)
* without volatile and memory clobber.
*/
#define alternative(oldinstr, newinstr, ft_flags) \
- asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, ft_flags) : : : "memory")
+ asm_inline volatile(N_ALTERNATIVE(oldinstr, newinstr, ft_flags) : : : "memory")

#define alternative_2(oldinstr, newinstr1, ft_flags1, newinstr2, ft_flags2) \
asm_inline volatile(ALTERNATIVE_2(oldinstr, newinstr1, ft_flags1, newinstr2, ft_flags2) ::: "memory")

-#define n_alternative(oldinstr, newinstr, ft_flags) \
- asm_inline volatile (N_ALTERNATIVE(oldinstr, newinstr, ft_flags) : : : "memory")
-
#define n_alternative_2(oldinstr, newinstr1, ft_flags1, newinstr2, ft_flags2) \
asm_inline volatile(N_ALTERNATIVE_2(oldinstr, newinstr1, ft_flags1, newinstr2, ft_flags2) ::: "memory")