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ubsan: no need to unset panic_on_warn in ubsan_epilogue()

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panic_on_warn is unset inside panic(), so no need to unset it before
calling panic() in ubsan_epilogue().

Link: https://lkml.kernel.org/r/1644324666-15947-5-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Xuefeng Li <lixuefeng@loongson.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tiezhu Yang 2022-03-23 16:06:54 -07:00 committed by Linus Torvalds
parent 1a2383e8b8
commit d83ce027a5
1 changed files with 1 additions and 9 deletions
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10
lib/ubsan.c
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@ -154,16 +154,8 @@ static void ubsan_epilogue(void)
current->in_ubsan--; current->in_ubsan--;
if (panic_on_warn) { if (panic_on_warn)
/*
* This thread may hit another WARN() in the panic path.
* Resetting this prevents additional WARN() from panicking the
* system on this thread. Other threads are blocked by the
* panic_mutex in panic().
*/
panic_on_warn = 0;
panic("panic_on_warn set ...\n"); panic("panic_on_warn set ...\n");
}
} }
void __ubsan_handle_divrem_overflow(void *_data, void *lhs, void *rhs) void __ubsan_handle_divrem_overflow(void *_data, void *lhs, void *rhs)