From: Tiezhu Yang yangtiezhu@loongson.cn
commit d83ce027a54068fabb70d2c252e1ce2da86784a4 upstream.
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@loong... 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 Signed-off-by: Eric Biggers ebiggers@google.com Signed-off-by: Sasha Levin sashal@kernel.org --- lib/ubsan.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/lib/ubsan.c b/lib/ubsan.c index bdc380ff5d5c..36bd75e33426 100644 --- a/lib/ubsan.c +++ b/lib/ubsan.c @@ -154,16 +154,8 @@ static void ubsan_epilogue(void)
current->in_ubsan--;
- 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; + if (panic_on_warn) panic("panic_on_warn set ...\n"); - } }
void __ubsan_handle_divrem_overflow(void *_data, void *lhs, void *rhs)