From: Rohan McLure <rmclure@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Rohan McLure <rmclure@linux.ibm.com>, npiggin@gmail.com
Subject: [PATCH] powerpc: qspinlock: Use asm-generic definition for queued_spin_lock
Date: Tue, 6 Dec 2022 16:51:55 +1100 [thread overview]
Message-ID: <20221206055155.2774695-1-rmclure@linux.ibm.com> (raw)
asm-generic/qspinlock.h provides an identical implementation of
queued_spin_lock. Remove the variant in asm/qspinlock.h.
Signed-off-by: Rohan McLure <rmclure@linux.ibm.com>
---
arch/powerpc/include/asm/qspinlock.h | 11 -----------
1 file changed, 11 deletions(-)
diff --git a/arch/powerpc/include/asm/qspinlock.h b/arch/powerpc/include/asm/qspinlock.h
index b676c4fb90fd..bf5ba0f00258 100644
--- a/arch/powerpc/include/asm/qspinlock.h
+++ b/arch/powerpc/include/asm/qspinlock.h
@@ -33,17 +33,6 @@ static inline void queued_spin_unlock(struct qspinlock *lock)
extern void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
#endif
-static __always_inline void queued_spin_lock(struct qspinlock *lock)
-{
- u32 val = 0;
-
- if (likely(arch_atomic_try_cmpxchg_lock(&lock->val, &val, _Q_LOCKED_VAL)))
- return;
-
- queued_spin_lock_slowpath(lock, val);
-}
-#define queued_spin_lock queued_spin_lock
-
#ifdef CONFIG_PARAVIRT_SPINLOCKS
#define SPIN_THRESHOLD (1<<15) /* not tuned */
--
2.37.2
next reply other threads:[~2022-12-06 5:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-06 5:51 Rohan McLure [this message]
2022-12-07 11:46 ` [PATCH] powerpc: qspinlock: Use asm-generic definition for queued_spin_lock Michael Ellerman
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