diff options
Diffstat (limited to 'arch/ia64/kernel/irq.c')
| -rw-r--r-- | arch/ia64/kernel/irq.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c index ce49c85c928f..b4c239685d2e 100644 --- a/arch/ia64/kernel/irq.c +++ b/arch/ia64/kernel/irq.c @@ -104,6 +104,17 @@ void set_irq_affinity_info (unsigned int irq, int hwid, int redir) irq_redir[irq] = (char) (redir & 0xff); } } + +bool is_affinity_mask_valid(cpumask_t cpumask) +{ + if (ia64_platform_is("sn2")) { + /* Only allow one CPU to be specified in the smp_affinity mask */ + if (cpus_weight(cpumask) != 1) + return false; + } + return true; +} + #endif /* CONFIG_SMP */ #ifdef CONFIG_HOTPLUG_CPU |