mirror of https://gitee.com/openkylin/linux.git
0600597c85
When building with -Wuninitialized and CONFIG_KASAN_SW_TAGS unset, Clang
warns:
mm/kasan/common.c:484:40: warning: variable 'tag' is uninitialized when
used here [-Wuninitialized]
kasan_unpoison_shadow(set_tag(object, tag), size);
^~~
set_tag ignores tag in this configuration but clang doesn't realize it at
this point in its pipeline, as it points to arch_kasan_set_tag as being
the point where it is used, which will later be expanded to (void
*)(object) without a use of tag. Initialize tag to 0xff, as it removes
this warning and doesn't change the meaning of the code.
Link: https://github.com/ClangBuiltLinux/linux/issues/465
Link: http://lkml.kernel.org/r/20190502163057.6603-1-natechancellor@gmail.com
Fixes:
|
||
|---|---|---|
| .. | ||
| Makefile | ||
| common.c | ||
| generic.c | ||
| generic_report.c | ||
| init.c | ||
| kasan.h | ||
| quarantine.c | ||
| report.c | ||
| tags.c | ||
| tags_report.c | ||