parisc: Use double word condition in 64bit CAS operation

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commit 1b59ddfcf1 upstream.

The attached change fixes the condition used in the "sub" instruction.
A double word comparison is needed.  This fixes the 64-bit LWS CAS
operation on 64-bit kernels.

I can now enable 64-bit atomic support in GCC.

Signed-off-by: John David Anglin <dave.anglin>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

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John David Anglin 2015-09-07 20:13:28 -04:00 • committed by Luis Henriques

parent c6c325b0e0

commit 76f41c550c

1 changed files with 1 additions and 1 deletions

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arch/parisc/kernel/syscall.S

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