4.9-stable review patch. If anyone has any objections, please let me know. ------------------ commit 3bea9adc96842b8a7345c7fb202c16ae9c8d5b25 upstream. The native clear_pending() function is identical to the PV version, so the latter can simply be removed. This fixes the build for systems with >= 16K CPUs using the PV lock implementation. Reported-by: Waiman Long <longman@xxxxxxxxxx> Signed-off-by: Will Deacon <will.deacon@xxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: boqun.feng@xxxxxxxxx Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Cc: paulmck@xxxxxxxxxxxxxxxxxx Link: http://lkml.kernel.org/r/20180427101619.GB21705@xxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- kernel/locking/qspinlock_paravirt.h | 5 ----- 1 file changed, 5 deletions(-) diff --git a/kernel/locking/qspinlock_paravirt.h b/kernel/locking/qspinlock_paravirt.h index 9c07c72fb10e..af2a24d484aa 100644 --- a/kernel/locking/qspinlock_paravirt.h +++ b/kernel/locking/qspinlock_paravirt.h @@ -105,11 +105,6 @@ static __always_inline void set_pending(struct qspinlock *lock) atomic_or(_Q_PENDING_VAL, &lock->val); } -static __always_inline void clear_pending(struct qspinlock *lock) -{ - atomic_andnot(_Q_PENDING_VAL, &lock->val); -} - static __always_inline int trylock_clear_pending(struct qspinlock *lock) { int val = atomic_read(&lock->val); -- 2.19.1
