request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.
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().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <[email protected]>
---
Hi microblaze maintainers,
if okay w/ this change, please consider taking it thr' your tree, else please
let me know.
Regards
afzal
Link to v2 & v1,
[v2] https://lkml.kernel.org/r/[email protected]
[v1] https://lkml.kernel.org/r/[email protected]
v3:
* Split out from tree wide series, as Thomas suggested to get it thr'
respective maintainers
* Modify pr_err displayed in case of error
* Re-arrange code & choose pr_err args as required to improve readability
* Remove irrelevant parts from commit message & improve
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/microblaze/kernel/timer.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
index a6683484b3a1..f8832cf49384 100644
--- a/arch/microblaze/kernel/timer.c
+++ b/arch/microblaze/kernel/timer.c
@@ -161,13 +161,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction timer_irqaction = {
- .handler = timer_interrupt,
- .flags = IRQF_TIMER,
- .name = "timer",
- .dev_id = &clockevent_xilinx_timer,
-};
-
static __init int xilinx_clockevent_init(void)
{
clockevent_xilinx_timer.mult =
@@ -309,7 +302,8 @@ static int __init xilinx_timer_init(struct device_node *timer)
freq_div_hz = timer_clock_freq / HZ;
- ret = setup_irq(irq, &timer_irqaction);
+ ret = request_irq(irq, timer_interrupt, IRQF_TIMER, "timer",
+ &clockevent_xilinx_timer);
if (ret) {
pr_err("Failed to setup IRQ");
return ret;
--
2.25.1
On 04. 03. 20 1:49, afzal mohammed wrote:
> request_irq() is preferred over setup_irq(). Invocations of setup_irq()
> occur after memory allocators are ready.
>
> 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().
>
> [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
>
> Signed-off-by: afzal mohammed <[email protected]>
> ---
> Hi microblaze maintainers,
>
> if okay w/ this change, please consider taking it thr' your tree, else please
> let me know.
>
> Regards
> afzal
>
> Link to v2 & v1,
> [v2] https://lkml.kernel.org/r/[email protected]
> [v1] https://lkml.kernel.org/r/[email protected]
>
> v3:
> * Split out from tree wide series, as Thomas suggested to get it thr'
> respective maintainers
> * Modify pr_err displayed in case of error
> * Re-arrange code & choose pr_err args as required to improve readability
> * Remove irrelevant parts from commit message & improve
>
> v2:
> * Replace pr_err("request_irq() on %s failed" by
> pr_err("%s: request_irq() failed"
> * Commit message massage
>
> arch/microblaze/kernel/timer.c | 10 ++--------
> 1 file changed, 2 insertions(+), 8 deletions(-)
>
> diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
> index a6683484b3a1..f8832cf49384 100644
> --- a/arch/microblaze/kernel/timer.c
> +++ b/arch/microblaze/kernel/timer.c
> @@ -161,13 +161,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction timer_irqaction = {
> - .handler = timer_interrupt,
> - .flags = IRQF_TIMER,
> - .name = "timer",
> - .dev_id = &clockevent_xilinx_timer,
> -};
> -
> static __init int xilinx_clockevent_init(void)
> {
> clockevent_xilinx_timer.mult =
> @@ -309,7 +302,8 @@ static int __init xilinx_timer_init(struct device_node *timer)
>
> freq_div_hz = timer_clock_freq / HZ;
>
> - ret = setup_irq(irq, &timer_irqaction);
> + ret = request_irq(irq, timer_interrupt, IRQF_TIMER, "timer",
> + &clockevent_xilinx_timer);
> if (ret) {
> pr_err("Failed to setup IRQ");
> return ret;
>
Applied.
Thanks,
Michal
--
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: http://www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs