RISC-V: remove spin_unlock_wait()

palmer-dabbelt · palmer-dabbelt · commit bf7305527343 · 2017-11-28T14:06:31.000-08:00
This was removed from the other architectures in commit 952111d ("arch: Remove spin_unlock_wait() arch-specific definitions"). That landed between when we got upstream and when our patches were reviewed, so this is a followup patch. Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
diff --git a/arch/riscv/include/asm/spinlock.h b/arch/riscv/include/asm/spinlock.h
@@ -58,15 +58,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
 	}
 }
 
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
-	smp_rmb();
-	do {
-		cpu_relax();
-	} while (arch_spin_is_locked(lock));
-	smp_acquire__after_ctrl_dep();
-}
-
 /***********************************************************/
 
 static inline void arch_read_lock(arch_rwlock_t *lock)

Original file line number	Diff line number	Diff line change
`@@ -58,15 +58,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)`
`58`	`58`	`}`
`59`	`59`	`}`
`60`	`60`
`61`		`-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)`
`62`		`-{`
`63`		`- smp_rmb();`
`64`		`- do {`
`65`		`- cpu_relax();`
`66`		`- } while (arch_spin_is_locked(lock));`
`67`		`- smp_acquire__after_ctrl_dep();`
`68`		`-}`
`69`		`-`
`70`	`61`	`/***********************************************************/`
`71`	`62`
`72`	`63`	`static inline void arch_read_lock(arch_rwlock_t *lock)`