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powerpc/irq: Fix build with CONFIG_PROC_FS=n

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Commit fbb22ceaaf ("powerpc/irq: Make irqstats array based") made
arch_show_interrupts() call irq_proc_emit_counts(). That function lives
in kernel/irq/proc.c, which is only built with CONFIG_PROC_FS, so
kernels without procfs no longer link:

  powerpc64-linux-ld: arch/powerpc/kernel/irq.o: in function `arch_show_interrupts':
  arch/powerpc/kernel/irq.c:134:(.text+0x4b8c): undefined reference to `irq_proc_emit_counts'

arch_show_interrupts() is only called from irq_seq_show(), which is in
kernel/irq/proc.c as well, so build it only with CONFIG_PROC_FS, as x86
already does.

Fixes: fbb22ceaaf ("powerpc/irq: Make irqstats array based")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202609271531.8kf2NTjK-lkp@intel.com/
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Sasha Levin 2026-10-23 17:15:03 -04:00 committed by Linus Torvalds
parent 56070f00d0
commit 4169c9c905
1 changed files with 2 additions and 0 deletions
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2
arch/powerpc/kernel/irq.c
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@ -122,6 +122,7 @@ void inc_irq_stat_and_enable(enum irq_stat_counts which)
set_bit(which, irq_stat_count_show);
}
#ifdef CONFIG_PROC_FS
int arch_show_interrupts(struct seq_file *p, int prec)
{
const struct irq_stat_info *info = irq_stat_info;
@ -155,6 +156,7 @@ int arch_show_interrupts(struct seq_file *p, int prec)
#endif
return 0;
}
#endif /* CONFIG_PROC_FS */
static int __init irq_init_stats(void)
{