Re: [PATCH v2 15/17] arm64: Remove custom IRQ stat accounting

[Valentin Schneider]

On 24/06/20 20:58, Marc Zyngier wrote:
> @@ -801,26 +802,15 @@ void show_ipi_list(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)
> -			seq_printf(p, "%10u ",
> -				   __get_irq_stat(cpu, ipi_irqs[i]));
> +			seq_printf(p, "%10u ", kstat_irqs_cpu(irq, cpu));
>               seq_printf(p, "      %s\n", ipi_types[i]);

How attached are we to that custom IPI printout? AIUI we *could* give them
a "prettier" name in request_percpu_irq() and let the standard procfs
printout take the wheel.