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| author | Jan Beulich <jbeulich@suse.com> | 2022-06-07 17:00:53 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-06-07 11:28:49 -0400 |
| commit | 1df931d95f4dc1c11db1123e85d4e08156e46ef9 (patch) | |
| tree | 7c2da2799c4931cc8217195caa243302ba3df604 /arch/parisc | |
| parent | cf4a8693d97a51dccf5a1557248d12d6d8be4b9e (diff) | |
x86: drop bogus "cc" clobber from __try_cmpxchg_user_asm()
As noted (and fixed) a couple of times in the past, "=@cc<cond>" outputs
and clobbering of "cc" don't work well together. The compiler appears to
mean to reject such, but doesn't - in its upstream form - quite manage
to yet for "cc". Furthermore two similar macros don't clobber "cc", and
clobbering "cc" is pointless in asm()-s for x86 anyway - the compiler
always assumes status flags to be clobbered there.
Fixes: 989b5db215a2 ("x86/uaccess: Implement macros for CMPXCHG on user addresses")
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Message-Id: <485c0c0b-a3a7-0b7c-5264-7d00c01de032@suse.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/parisc')
0 files changed, 0 insertions, 0 deletions