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SubjectRe: [PATCH] arm64/smp: Remove unused irq variable in arch_show_interrupts()
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On 2020/12/15 18:30, Geert Uytterhoeven wrote:
> arch/arm64/kernel/smp.c: In function ‘arch_show_interrupts’:
> arch/arm64/kernel/smp.c:808:16: warning: unused variable ‘irq’ [-Wunused-variable]
> 808 | unsigned int irq = irq_desc_get_irq(ipi_desc[i]);
> | ^~~
>
> The removal of the last user forgot to remove the variable.
>
> Fixes: 2f516e34383d0e97 ("arm64/smp: Use irq_desc_kstat_cpu() in arch_show_interrupts()")

This is in mainline now and the commit id is 5089bc51f81f.

> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
> One more issue in irq-core-2020-12-14.
>
> arch/arm64/kernel/smp.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
> index 3aef3bc22d3250b5..10b39328268687e3 100644
> --- a/arch/arm64/kernel/smp.c
> +++ b/arch/arm64/kernel/smp.c
> @@ -805,7 +805,6 @@ int arch_show_interrupts(struct seq_file *p, int prec)
> unsigned int cpu, i;
>
> for (i = 0; i < NR_IPI; i++) {
> - unsigned int irq = irq_desc_get_irq(ipi_desc[i]);
> seq_printf(p, "%*s%u:%s", prec - 1, "IPI", i,
> prec >= 4 ? " " : "");
> for_each_online_cpu(cpu)

And I guess we have the same problem on 32-bit ARM. 'irq' in
show_ipi_list() is no longer used since commit 88c637748e31
("ARM: smp: Use irq_desc_kstat_cpu() in show_ipi_list()").


Thanks,
Zenghui

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