diff options
| author | Uros Bizjak <ubizjak@gmail.com> | 2022-06-28 19:16:12 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-08-15 20:18:12 +0300 |
| commit | 4630535c64725bcd722eb59fb8d92be8db943d3d (patch) | |
| tree | 5e1e91f790fcf678c1d33d7b89575d29b7d0456e /Kbuild | |
| parent | 3163600cab67ffd276a3bb97891404c59c8595a4 (diff) | |
| download | linux-4630535c64725bcd722eb59fb8d92be8db943d3d.tar.xz | |
x86/uaccess: Improve __try_cmpxchg64_user_asm() for x86_32
Improve __try_cmpxcgh64_user_asm() for !CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT
by relaxing the output register constraint from "c" to "q" constraint,
which allows the compiler to choose between %ecx or %ebx register.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20220628161612.7993-1-ubizjak@gmail.com
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions