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| author | Josh Poimboeuf <[email protected]> | 2019-07-18 01:36:44 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2019-07-18 19:01:06 +0000 |
| commit | 82e844a6536d1a3c12a73e44712f4021d90a4b53 (patch) | |
| tree | ca18cbcd737c05255669e9bad7c33537509b6dd2 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | x86/uaccess: Don't leak AC flag into fentry from mcsafe_handle_tail() (diff) | |
| download | kernel-82e844a6536d1a3c12a73e44712f4021d90a4b53.tar.gz kernel-82e844a6536d1a3c12a73e44712f4021d90a4b53.zip | |
x86/uaccess: Remove redundant CLACs in getuser/putuser error paths
The same getuser/putuser error paths are used regardless of whether AC
is set. In non-exception failure cases, this results in an unnecessary
CLAC.
Fixes the following warnings:
arch/x86/lib/getuser.o: warning: objtool: .altinstr_replacement+0x18: redundant UACCESS disable
arch/x86/lib/putuser.o: warning: objtool: .altinstr_replacement+0x18: redundant UACCESS disable
Signed-off-by: Josh Poimboeuf <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lkml.kernel.org/r/bc14ded2755ae75bd9010c446079e113dbddb74b.1563413318.git.jpoimboe@redhat.com
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions