Commit cee681d4 authored Mar 09, 2023 by Sebastian Andrzej Siewior Committed by Greg Kroah-Hartman Nov 20, 2023

powerpc/imc-pmu: Use the correct spinlock initializer.



[ Upstream commit 007240d59c11f87ac4f6cfc6a1d116630b6b634c ]

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>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230309134831.Nz12nqsU@linutronix.de


Signed-off-by: Sasha Levin <sashal@kernel.org>

parent dc5804b4

arch/powerpc/perf/imc-pmu.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -50,7 +50,7 @@ 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,
		};