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ARM: 9442/1: smp: Fix IPI alignment in /proc/interrupts

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On a system with less than 1000 interrupts, prec = 3, causing a
misalignment for the IPI interrupts.  E.g. on Koelsch (R-Car M2-W):

    200:          0          0  gpio-rcar   6 Edge      SW36
    IPI0:          0          0  CPU wakeup interrupts
    IPI1:          0          0  Timer broadcast interrupts
    IPI2:       1701       2844  Rescheduling interrupts
    IPI3:      10338      21181  Function call interrupts
    IPI4:          0          0  CPU stop interrupts
    IPI5:        651        825  IRQ work interrupts
    IPI6:          0          0  completion interrupts
    Err:          0

Fix this by adopting the same solution as used on arm64.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Geert Uytterhoeven
2025-02-05 14:24:15 +01:00
committed by Russell King (Oracle)
parent ccb8ce5268
commit 9cac324d6f
1 changed files with 2 additions and 1 deletions
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3
arch/arm/kernel/smp.c
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@@ -551,7 +551,8 @@ void show_ipi_list(struct seq_file *p, int prec)
if (!ipi_desc[i])
continue;
seq_printf(p, "%*s%u: ", prec - 1, "IPI", i);
seq_printf(p, "%*s%u:%s", prec - 1, "IPI", i,
prec >= 4 ? " " : "");
for_each_online_cpu(cpu)
seq_printf(p, "%10u ", irq_desc_kstat_cpu(ipi_desc[i], cpu));