From: Sebastian Andrzej Siewior Date: Tue, 14 May 2019 17:07:44 +0200 Subject: [PATCH 266/342] arm: imx6: cpuidle: Use raw_spinlock_t Origin: https://git.kernel.org/cgit/linux/kernel/git/rt/linux-stable-rt.git/commit?id=18215a774fb6f25e6044f44d0bb7285b03a1e151 [ Upstream commit 40d0332ec8312e9c090f0a5414d9c90e12b13611 ] The idle call back is invoked with disabled interrupts and requires raw_spinlock_t locks to work. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Steven Rostedt (VMware) --- arch/arm/mach-imx/cpuidle-imx6q.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c index 326e870d7123..d9ac80aa1eb0 100644 --- a/arch/arm/mach-imx/cpuidle-imx6q.c +++ b/arch/arm/mach-imx/cpuidle-imx6q.c @@ -17,22 +17,22 @@ #include "hardware.h" static int num_idle_cpus = 0; -static DEFINE_SPINLOCK(cpuidle_lock); +static DEFINE_RAW_SPINLOCK(cpuidle_lock); static int imx6q_enter_wait(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { - spin_lock(&cpuidle_lock); + raw_spin_lock(&cpuidle_lock); if (++num_idle_cpus == num_online_cpus()) imx6_set_lpm(WAIT_UNCLOCKED); - spin_unlock(&cpuidle_lock); + raw_spin_unlock(&cpuidle_lock); cpu_do_idle(); - spin_lock(&cpuidle_lock); + raw_spin_lock(&cpuidle_lock); if (num_idle_cpus-- == num_online_cpus()) imx6_set_lpm(WAIT_CLOCKED); - spin_unlock(&cpuidle_lock); + raw_spin_unlock(&cpuidle_lock); return index; }