From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: linuxppc-dev@lists.ozlabs.org
Cc: Peter Zijlstra <peterz@infradead.org>,
Nicholas Piggin <npiggin@gmail.com>,
Kajol Jain <kjain@linux.ibm.com>,
Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH] powerpc/imc-pmu: Use the correct spinlock initializer.
Date: Thu, 9 Mar 2023 14:48:31 +0100 [thread overview]
Message-ID: <20230309134831.Nz12nqsU@linutronix.de> (raw)
The macro __SPIN_LOCK_INITIALIZER() is implementation specific. Users
that desire to initialize a spinlock in a struct must use
__SPIN_LOCK_UNLOCKED().
Use __SPIN_LOCK_UNLOCKED() for the spinlock_t in imc_global_refc.
Fixes: 76d588dddc459 ("powerpc/imc-pmu: Fix use of mutex in IRQs disabled section")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
arch/powerpc/perf/imc-pmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c
index 9d229ef7f86ef..ada817c49b722 100644
--- a/arch/powerpc/perf/imc-pmu.c
+++ b/arch/powerpc/perf/imc-pmu.c
@@ -51,7 +51,7 @@ static int trace_imc_mem_size;
* core and trace-imc
*/
static struct imc_pmu_ref imc_global_refc = {
- .lock = __SPIN_LOCK_INITIALIZER(imc_global_refc.lock),
+ .lock = __SPIN_LOCK_UNLOCKED(imc_global_refc.lock),
.id = 0,
.refc = 0,
};
--
2.39.2
next reply other threads:[~2023-03-09 13:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-09 13:48 Sebastian Andrzej Siewior [this message]
2023-10-27 9:59 ` [PATCH] powerpc/imc-pmu: Use the correct spinlock initializer Michael Ellerman
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