Messages in this thread Patch in this message | | | From | Breno Leitao <> | Subject | [PATCH net-next v3 1/4] net: dql: Avoid calling BUG() when WARN() is enough | Date | Thu, 11 Apr 2024 12:22:29 -0700 |
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If the dql_queued() function receives an invalid argument, WARN about it and continue, instead of crashing the kernel.
This was raised by checkpatch, when I am refactoring this code (see following patch/commit)
WARNING: Do not crash the kernel unless it is absolutely unavoidable--use WARN_ON_ONCE() plus recovery code (if feasible) instead of BUG() or variants
Signed-off-by: Breno Leitao <leitao@debian.org> --- include/linux/dynamic_queue_limits.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/linux/dynamic_queue_limits.h b/include/linux/dynamic_queue_limits.h index 5693a4be0d9a..ff9c65841ae8 100644 --- a/include/linux/dynamic_queue_limits.h +++ b/include/linux/dynamic_queue_limits.h @@ -91,7 +91,8 @@ static inline void dql_queued(struct dql *dql, unsigned int count) { unsigned long map, now, now_hi, i; - BUG_ON(count > DQL_MAX_OBJECT); + if (WARN_ON_ONCE(count > DQL_MAX_OBJECT)) + return; dql->last_obj_cnt = count; -- 2.43.0
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