Commit 9b03d8ab authored by Paul Burton's avatar Paul Burton Committed by Ralf Baechle

MIPS: Skip IPI setup if we only have 1 CPU

If we're running on a system with only 1 possible CPU then it makes no
sense to reserve or initialise IPIs since we'll never use them. Avoid
doing so.
Signed-off-by: default avatarPaul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16192/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent f259fe29
...@@ -335,6 +335,9 @@ int mips_smp_ipi_free(const struct cpumask *mask) ...@@ -335,6 +335,9 @@ int mips_smp_ipi_free(const struct cpumask *mask)
static int __init mips_smp_ipi_init(void) static int __init mips_smp_ipi_init(void)
{ {
if (num_possible_cpus() == 1)
return 0;
mips_smp_ipi_allocate(cpu_possible_mask); mips_smp_ipi_allocate(cpu_possible_mask);
call_desc = irq_to_desc(call_virq); call_desc = irq_to_desc(call_virq);
......
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