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x86/vdso: Fix lsl operand order
authorSamuel Neves <sneves@dei.uc.pt>
Sat, 1 Sep 2018 20:14:52 +0000 (21:14 +0100)
committerThomas Gleixner <tglx@linutronix.de>
Sat, 1 Sep 2018 21:01:56 +0000 (23:01 +0200)
commite78e5a91456fcecaa2efbb3706572fe043766f4d
tree99f38fa6807bb35d9db236dd0a2311c1feffdb4f
parentc7486104a5ce7e8763e3cb5157bba8d0f1468d87
x86/vdso: Fix lsl operand order

In the __getcpu function, lsl is using the wrong target and destination
registers. Luckily, the compiler tends to choose %eax for both variables,
so it has been working so far.

Fixes: a582c540ac1b ("x86/vdso: Use RDPID in preference to LSL when available")
Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180901201452.27828-1-sneves@dei.uc.pt
arch/x86/include/asm/vgtod.h