Messages in this thread Patch in this message | | | Date | Mon, 20 Jul 2020 13:49:19 -0700 | Subject | [PATCH v3 05/11] x86/percpu: Remove "e" constraint from XADD | From | Nick Desaulniers <> |
| |
From: Brian Gerst <brgerst@gmail.com>
The "e" constraint represents a constant, but the XADD instruction doesn't accept immediate operands.
Tested-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> --- 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 2a24f3c795eb..9bb5440d98d3 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(); \ -- 2.28.0.rc0.105.gf9edc3c819-goog
| |