Re: [PATCH 01/13] kernel/irq/proc: use seq_put_decimal_ull_width() for decimal values

From: Geert Uytterhoeven
Date: Wed Nov 20 2024 - 03:57:32 EST


Hi Thomas,

On Wed, Nov 20, 2024 at 2:21 AM Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> On Tue, Nov 19 2024 at 20:55, Geert Uytterhoeven wrote:
> > E.g. on Koelsch (R-Car M-W), the output changes from:
> >
> > CPU0 CPU1
> > 27: 1871 2017 GIC-0 27 Level arch_timer
> > 29: 646 0 GIC-0 205 Level e60b0000.i2c
> > 30: 0 0 GIC-0 174 Level ffca0000.timer
> > 31: 0 0 GIC-0 36 Level e6050000.gpio
> > 32: 0 0 GIC-0 37 Level e6051000.gpio
> > [...]
> >
> > to
> >
> > CPU0 CPU1
> > 27: 1966 1900GIC-0 27 Level arch_timer
> > 29: 580 0GIC-0 205 Level e60b0000.i2c
> > 30: 0 0GIC-0 174 Level ffca0000.timer
> > 31: 0 0GIC-0 36 Level e6050000.gpio
> > 32: 0 0GIC-0 37 Level e6051000.gpio
> > [...]
> >
> > making the output hard to read, and probably breaking scripts that parse
> > its contents.
> >
> > Reverting the commit fixes the issue for me.
>
> Interestingly enough the generic version and quite some of the chip
> specific print functions have a leading space, but GIC does not.
>
> The below should restore the original state.

> --- a/kernel/irq/proc.c
> +++ b/kernel/irq/proc.c
> @@ -501,6 +501,7 @@ int show_interrupts(struct seq_file *p, void *v)
>
> seq_put_decimal_ull_width(p, " ", cnt, 10);
> }
> + seq_putc(p, ' ');
>
> raw_spin_lock_irqsave(&desc->lock, flags);
> if (desc->irq_data.chip) {

Thanks, that does the trick!
Tested-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds