Commit 61f38261 authored by Bruno Premont's avatar Bruno Premont Committed by Thomas Gleixner
Browse files

genirq: Fix UP compile failure caused by irq_thread_check_affinity

Since genirq: Delegate irq affinity setting to the irq thread

) compilation with
CONFIG_SMP=n fails with following error:

   In function 'irq_thread_check_affinity':
   error: 'struct irq_desc' has no member named 'affinity'
make[4]: *** [kernel/irq/manage.o] Error 1

That commit adds a new function irq_thread_check_affinity() which
uses struct irq_desc.affinity which is only available for CONFIG_SMP=y.
Move that function under #ifdef CONFIG_SMP.

[ tglx@brownpaperbag: compile and boot tested on UP and SMP ]
Signed-off-by: default avatarBruno Premont <>
LKML-Reference: <20090722222232.2eb3e1c4@neptune.home>
Signed-off-by: default avatarThomas Gleixner <>
parent 3c330108
......@@ -451,6 +451,7 @@ static int irq_wait_for_interrupt(struct irqaction *action)
return -1;
* Check whether we need to change the affinity of the interrupt thread.
......@@ -478,6 +479,10 @@ irq_thread_check_affinity(struct irq_desc *desc, struct irqaction *action)
set_cpus_allowed_ptr(current, mask);
static inline void
irq_thread_check_affinity(struct irq_desc *desc, struct irqaction *action) { }
* Interrupt handler thread
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