On Mon, Nov 29, 2010 at 7:06 AM, Thiago Farina <tfransosi@gmail.com> wrote:
quoted text
> This variable is only used in the presence of the CONFIG_GENERIC_PENDING_IRQ.
> So when compiling without this config, we get the following warning:
>
> arch/x86/kernel/apic/io_apic.c: In function ‘ack_apic_level’:
> arch/x86/kernel/apic/io_apic.c:2433: warning: unused variable ‘desc’
>

Its been already fixed by
http://marc.info/?l=linux-mm-commits&m=128821373401265&w=2. Currently
its on -mm tree.

thanks,
rakib

quoted text
> Signed-off-by: Thiago Farina <tfransosi@gmail.com>
> ---
>  arch/x86/kernel/apic/io_apic.c |    5 ++++-
>  1 files changed, 4 insertions(+), 1 deletions(-)
>
> diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
> index 7cc0a72..56261be 100644
> --- a/arch/x86/kernel/apic/io_apic.c
> +++ b/arch/x86/kernel/apic/io_apic.c
> @@ -2430,9 +2430,12 @@ static void ack_apic_level(struct irq_data *data)
>  {
>        struct irq_cfg *cfg = data->chip_data;
>        int i, do_unmask_irq = 0, irq = data->irq;
> -       struct irq_desc *desc = irq_to_desc(irq);
>        unsigned long v;
>
> +#ifdef CONFIG_GENERIC_PENDING_IRQ
> +       struct irq_desc *desc = irq_to_desc(irq);
> +#endif
> +
>        irq_complete_move(cfg);
>  #ifdef CONFIG_GENERIC_PENDING_IRQ
>        /* If we are moving the irq we need to mask it */
> --
> 1.7.3.2.343.g7d43d
>
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