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authorafzal mohammed <afzal.mohd.ma@gmail.com>2020-02-27 16:29:02 +0530
committerDaniel Lezcano <daniel.lezcano@linaro.org>2020-02-27 12:15:24 +0100
commitcc2550b421aa30e3da67e5a7f6d14f3ecd3527b3 (patch)
treea4ee1f7efee5a7a20477f46775a6c47ba2c74455 /drivers/clocksource/timer-pxa.c
parenta7cd39552194954bcdecfd9ff775466a61bda5bb (diff)
clocksource: Replace setup_irq() by request_irq()
request_irq() is preferred over setup_irq(). The early boot setup_irq() invocations happen either via 'init_IRQ()' or 'time_init()', while memory allocators are ready by 'mm_init()'. Per tglx[1], setup_irq() existed in olden days when allocators were not ready by the time early interrupts were initialized. Hence replace setup_irq() by request_irq(). Seldom remove_irq() usage has been observed coupled with setup_irq(), wherever that has been found, it too has been replaced by free_irq(). A build error that was reported by kbuild test robot <lkp@intel.com> in the previous version of the patch also has been fixed. [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/91961c77c1cf93d41523f5e1ac52043f32f97077.1582799709.git.afzal.mohd.ma@gmail.com
Diffstat (limited to 'drivers/clocksource/timer-pxa.c')
-rw-r--r--drivers/clocksource/timer-pxa.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/clocksource/timer-pxa.c b/drivers/clocksource/timer-pxa.c
index 913a5d354a1f..7ad0e5adb2ff 100644
--- a/drivers/clocksource/timer-pxa.c
+++ b/drivers/clocksource/timer-pxa.c
@@ -143,13 +143,6 @@ static struct clock_event_device ckevt_pxa_osmr0 = {
.resume = pxa_timer_resume,
};
-static struct irqaction pxa_ost0_irq = {
- .name = "ost0",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pxa_ost0_interrupt,
- .dev_id = &ckevt_pxa_osmr0,
-};
-
static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
{
int ret;
@@ -161,7 +154,8 @@ static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
ckevt_pxa_osmr0.cpumask = cpumask_of(0);
- ret = setup_irq(irq, &pxa_ost0_irq);
+ ret = request_irq(irq, pxa_ost0_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "ost0", &ckevt_pxa_osmr0);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;