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authorTiezhu Yang <[email protected]>2022-03-23 16:06:54 -0700
committerLinus Torvalds <[email protected]>2022-03-23 19:00:35 -0700
commitd83ce027a54068fabb70d2c252e1ce2da86784a4 (patch)
treedf1da8f04aa0630ee723aa73a1e1ffc7c693c92c
parent1a2383e8b84c0451fd9b1eec3b9aab16f30b597c (diff)
ubsan: no need to unset panic_on_warn in ubsan_epilogue()
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/[email protected] Signed-off-by: Tiezhu Yang <[email protected]> Reviewed-by: Marco Elver <[email protected]> Cc: Andrey Ryabinin <[email protected]> Cc: Baoquan He <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Xuefeng Li <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
-rw-r--r--lib/ubsan.c10
1 files changed, 1 insertions, 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)