lkml.org 
[lkml]   [2016]   [Apr]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2] mfd: arizona: Fix lockdep recursion warning on set_irq_wake
On Fri, 25 Mar 2016, Charles Keepax wrote:

> Avoid a false recursive locking warning from lockdep by adding a lock
> class for the arizona IRQ chip.
>
> Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
> ---
> drivers/mfd/arizona-irq.c | 3 +++
> 1 file changed, 3 insertions(+)

Applied, thanks.

> Thanks for the pointers guys and sorry again for missing this the
> first time around.
>
> Changes since v1:
> - Ditch the bus_lock stuff and use irq_set_lockdep_class
>
> Thanks,
> Charles
>
> diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
> index 5fef014..edeb495 100644
> --- a/drivers/mfd/arizona-irq.c
> +++ b/drivers/mfd/arizona-irq.c
> @@ -168,12 +168,15 @@ static struct irq_chip arizona_irq_chip = {
> .irq_set_wake = arizona_irq_set_wake,
> };
>
> +static struct lock_class_key arizona_irq_lock_class;
> +
> static int arizona_irq_map(struct irq_domain *h, unsigned int virq,
> irq_hw_number_t hw)
> {
> struct arizona *data = h->host_data;
>
> irq_set_chip_data(virq, data);
> + irq_set_lockdep_class(virq, &arizona_irq_lock_class);
> irq_set_chip_and_handler(virq, &arizona_irq_chip, handle_simple_irq);
> irq_set_nested_thread(virq, 1);
> irq_set_noprobe(virq);

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

\
 
 \ /
  Last update: 2016-04-11 10:41    [W:0.071 / U:3.360 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site