lkml.org 
[lkml]   [2015]   [Jul]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch] irqchip/dw-apb-ictl: Fix generic domain chip wreckage
On Mon, 6 Jul 2015, Jisheng Zhang wrote:
> > Thomas Gleixner <tglx@linutronix.de> wrote:
> the following patch seems fix the panic, but I dunno whether it's correct or not,
> could you please help to check?
>
> Thanks,
> Jisheng
>
> diff --git a/drivers/irqchip/irq-dw-apb-ictl.c b/drivers/irqchip/irq-dw-apb-ictl.c
> index f4a0e11..8d996cb 100644
> --- a/drivers/irqchip/irq-dw-apb-ictl.c
> +++ b/drivers/irqchip/irq-dw-apb-ictl.c
> @@ -30,13 +30,14 @@
> static void dw_apb_ictl_handler(unsigned int irq, struct irq_desc *desc)
> {
> struct irq_domain *d = irq_desc_get_handler_data(desc);
> - struct irq_chip_generic *gc = irq_get_domain_generic_chip(d, 0);
> + struct irq_chip_generic *gc;
> struct irq_chip *chip = irq_desc_get_chip(desc);
> int n;
>
> chained_irq_enter(chip, desc);
>
> - for (n = 0; n < d->gc->num_chips; n++, gc++) {
> + for (n = 0; n < d->gc->num_chips; n++) {
> + gc = irq_get_domain_generic_chip(d, n * 32);
> u32 stat = readl_relaxed(gc->reg_base + APB_INT_FINALSTATUS_L);

Yes it's correct. Seems I tried to be overly clever by avoiding the
lookup of the second chip. Will fold back.

Thanks,

tglx




\
 
 \ /
  Last update: 2015-07-06 15:01    [W:0.061 / U:0.332 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site