The following commit has been merged into the x86/asm branch of tip:
Commit-ID: e4d16defbbde028aeab2026995f0ced4240df6d6
Gitweb: https://git.kernel.org/tip/e4d16defbbde028aeab2026995f0ced4240df6d6
Author: Brian Gerst <brgerst@xxxxxxxxx>
AuthorDate: Mon, 20 Jul 2020 13:49:19 -07:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Thu, 23 Jul 2020 11:46:40 +02:00
x86/percpu: Remove "e" constraint from XADD
The "e" constraint represents a constant, but the XADD instruction doesn't
accept immediate operands.
Signed-off-by: Brian Gerst <brgerst@xxxxxxxxx>
Signed-off-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Tested-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Tested-by: Sedat Dilek <sedat.dilek@xxxxxxxxx>
Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Acked-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Acked-by: Dennis Zhou <dennis@xxxxxxxxxx>
Link: https://lkml.kernel.org/r/20200720204925.3654302-6-ndesaulniers@xxxxxxxxxx
---
arch/x86/include/asm/percpu.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index 2a24f3c..9bb5440 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -220,7 +220,7 @@ do { \
break; \
case 8: \
asm qual ("xaddq %0, "__percpu_arg(1) \
- : "+re" (paro_ret__), "+m" (var) \
+ : "+r" (paro_ret__), "+m" (var) \
: : "memory"); \
break; \
default: __bad_percpu_size(); \
|