Commit 22038704 authored by Marc Zyngier's avatar Marc Zyngier

ARM: Handle no IPI being registered in show_ipi_list()

As SMP-on-UP is a valid configuration on 32bit ARM, do not assume that
IPIs are populated in show_ipi_list().
Reported-by: default avatarGuillaume Tucker <guillaume.tucker@collabora.com>
Reported-by: default avatarkernelci.org bot <bot@kernelci.org>
Tested-by: default avatarGuillaume Tucker <guillaume.tucker@collabora.com>
Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
parent ac15a54e
...@@ -541,7 +541,12 @@ void show_ipi_list(struct seq_file *p, int prec) ...@@ -541,7 +541,12 @@ void show_ipi_list(struct seq_file *p, int prec)
unsigned int cpu, i; unsigned int cpu, i;
for (i = 0; i < NR_IPI; i++) { for (i = 0; i < NR_IPI; i++) {
unsigned int irq = irq_desc_get_irq(ipi_desc[i]); unsigned int irq;
if (!ipi_desc[i])
continue;
irq = irq_desc_get_irq(ipi_desc[i]);
seq_printf(p, "%*s%u: ", prec - 1, "IPI", i); seq_printf(p, "%*s%u: ", prec - 1, "IPI", i);
for_each_online_cpu(cpu) for_each_online_cpu(cpu)
......
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