Fix build bug reported by Valdis Kletnieks: if the lock validator is disabled in the .config then kernel/irq/handle.c would not build. Signed-off-by: Ingo Molnar Signed-off-by: Arjan van de Ven Signed-off-by: Andrew Morton --- kernel/irq/handle.c | 4 ++++ 1 file changed, 4 insertions(+) diff -puN kernel/irq/handle.c~lock-validator-special-locking-genirq-lock-validator-early_init_irq_lock_type-build-fix kernel/irq/handle.c --- a/kernel/irq/handle.c~lock-validator-special-locking-genirq-lock-validator-early_init_irq_lock_type-build-fix +++ a/kernel/irq/handle.c @@ -243,6 +243,8 @@ out: return 1; } +#ifdef CONFIG_TRACE_IRQFLAGS + /* * lockdep: we want to handle all irq_desc locks as a single lock-type: */ @@ -255,3 +257,5 @@ void early_init_irq_lock_type(void) for (i = 0; i < NR_IRQS; i++) spin_lock_init_key(&irq_desc[i].lock, &irq_desc_lock_type); } + +#endif _