Re: [PATCH 05/11] irqchip: bcm7120-l2: Make sure all register accesses use base+offset

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tuesday 28 October 2014 20:58:52 Kevin Cernekee wrote:
> 
>         irq_gc_lock(gc);
>         /* Save the current mask and the interrupt forward mask */
> -       b->saved_mask = __raw_readl(b->base) | b->irq_fwd_mask;
> +       b->saved_mask = __raw_readl(b->base + IRQEN) | b->irq_fwd_mask;
>         if (b->can_wake) {
>                 reg = b->saved_mask | gc->wake_active;
> -               __raw_writel(reg, b->base);
> +               __raw_writel(reg, b->base + IRQEN);
>         }
>         irq_gc_unlock(gc);
>  }
> @@ -81,7 +81,7 @@ static void bcm7120_l2_intc_resume(struct irq_data *d)
>  
>         /* Restore the saved mask */
>         irq_gc_lock(gc);
> -       __raw_writel(b->saved_mask, b->base);
> +       __raw_writel(b->saved_mask, b->base + IRQEN);
>         irq_gc_unlock(gc);
> 

You should really change this one too, to use fixed-endian accessors.
__raw_writel can't safely be used in drivers, and it will break
big-endian kernels running on ARM BRCMSTB.

	Arnd





[Index of Archives]     [Linux MIPS Home]     [LKML Archive]     [Linux ARM Kernel]     [Linux ARM]     [Linux]     [Git]     [Yosemite News]     [Linux SCSI]     [Linux Hams]

  Powered by Linux