Messages in this thread Patch in this message | | | Date | Thu, 23 Jul 2020 10:43:42 -0000 | From | "tip-bot2 for Brian Gerst" <> | Subject | [tip: x86/asm] x86/percpu: Remove "e" constraint from XADD |
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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@gmail.com> AuthorDate: Mon, 20 Jul 2020 13:49:19 -07:00 Committer: Thomas Gleixner <tglx@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 <brgerst@gmail.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Nick Desaulniers <ndesaulniers@google.com> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Dennis Zhou <dennis@kernel.org> Link: https://lkml.kernel.org/r/20200720204925.3654302-6-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 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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