There is no agreed-upon definition of spin_unlock_wait()'s semantics,
and it appears that all callers could do just as well with a lock/unlock
pair. This commit therefore removes the underlying arch-specific
arch_spin_unlock_wait().
Signed-off-by: Paul E. McKenney <paulmck at linux.vnet.ibm.com>
Cc: Vineet Gupta <vgupta at synopsys.com>
Cc: <linux-snps-arc at lists.infradead.org>
Cc: Will Deacon <will.deacon at arm.com>
Cc: Peter Zijlstra <peterz at infradead.org>
Cc: Alan Stern <stern at rowland.harvard.edu>
Cc: Andrea Parri <parri.andrea at gmail.com>
Cc: Linus Torvalds <torvalds at linux-foundation.org>
---
arch/arc/include/asm/spinlock.h | 5 -----
1 file changed, 5 deletions(-)
diff --git a/arch/arc/include/asm/spinlock.h b/arch/arc/include/asm/spinlock.h
index 233d5ffe6ec7..a325e6a36523 100644
--- a/arch/arc/include/asm/spinlock.h
+++ b/arch/arc/include/asm/spinlock.h
@@ -16,11 +16,6 @@
#define arch_spin_is_locked(x) ((x)->slock != __ARCH_SPIN_LOCK_UNLOCKED__)
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->slock, !VAL);
-}
-
#ifdef CONFIG_ARC_HAS_LLSC
static inline void arch_spin_lock(arch_spinlock_t *lock)
--
2.5.2
