diff options
| author | John Hubbard <jhubbard@nvidia.com> | 2023-06-06 09:16:33 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-06-20 01:19:02 +0200 |
| commit | 97deb66ed4f9390fd585210fe6d72088000d9110 (patch) | |
| tree | b88ec873e3058422b0e8eca56b4768a34a21fde0 /tools/testing/selftests/mm | |
| parent | selftests/mm: fix two -Wformat-security warnings in uffd builds (diff) | |
| download | linux-97deb66ed4f9390fd585210fe6d72088000d9110.tar.xz linux-97deb66ed4f9390fd585210fe6d72088000d9110.zip | |
selftests/mm: fix a "possibly uninitialized" warning in pkey-x86.h
This fixes a real bug, too, because xstate_size() was assuming that
the stack variable xstate_size was initialized to zero. That's not
guaranteed nor even especially likely.
Link: https://lkml.kernel.org/r/20230606071637.267103-8-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/testing/selftests/mm')
| -rw-r--r-- | tools/testing/selftests/mm/pkey-x86.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/mm/pkey-x86.h b/tools/testing/selftests/mm/pkey-x86.h index 72c14cd3ddc7..e32ae8a1cd99 100644 --- a/tools/testing/selftests/mm/pkey-x86.h +++ b/tools/testing/selftests/mm/pkey-x86.h @@ -132,7 +132,7 @@ int pkey_reg_xstate_offset(void) unsigned int ecx; unsigned int edx; int xstate_offset; - int xstate_size; + int xstate_size = 0; unsigned long XSTATE_CPUID = 0xd; int leaf; |