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 <brge...@gmail.com>
AuthorDate:    Mon, 20 Jul 2020 13:49:19 -07:00
Committer:     Thomas Gleixner <t...@linutronix.de>
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 <brge...@gmail.com>
Signed-off-by: Nick Desaulniers <ndesaulni...@google.com>
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Tested-by: Nick Desaulniers <ndesaulni...@google.com>
Tested-by: Sedat Dilek <sedat.di...@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulni...@google.com>
Acked-by: Linus Torvalds <torva...@linux-foundation.org>
Acked-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Acked-by: Dennis Zhou <den...@kernel.org>
Link: https://lkml.kernel.org/r/20200720204925.3654302-6-ndesaulni...@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 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();                                   \

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