Messages in this thread Patch in this message | | | From | Waiman Long <> | Subject | [PATCH-tip] locking/qspinlock: Remove unnecessary BUG_ON() call | Date | Sun, 24 Feb 2019 20:14:13 -0500 |
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With the > 4 nesting levels case handled by the commit d682b596d993 ("locking/qspinlock: Handle > 4 slowpath nesting levels"), the BUG_ON() call in encode_tail() will never be triggered. Remove it.
Signed-off-by: Waiman Long <longman@redhat.com> --- kernel/locking/qspinlock.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c index 21ee51b..5e9247d 100644 --- a/kernel/locking/qspinlock.c +++ b/kernel/locking/qspinlock.c @@ -124,9 +124,6 @@ static inline __pure u32 encode_tail(int cpu, int idx) { u32 tail; -#ifdef CONFIG_DEBUG_SPINLOCK - BUG_ON(idx > 3); -#endif tail = (cpu + 1) << _Q_TAIL_CPU_OFFSET; tail |= idx << _Q_TAIL_IDX_OFFSET; /* assume < 4 */ -- 1.8.3.1
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