Messages in this thread Patch in this message | | | Date | Wed, 22 Jul 2009 21:21:55 GMT | From | tip-bot for Bruno Premont <> | Subject | [tip:irq/urgent] genirq: Fix UP compile failure caused by irq_thread_check_affinity |
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Commit-ID: 61f3826133dc07142935fb5712fc738e19eb5575 Gitweb: http://git.kernel.org/tip/61f3826133dc07142935fb5712fc738e19eb5575 Author: Bruno Premont <bonbons@linux-vserver.org> AuthorDate: Wed, 22 Jul 2009 22:22:32 +0200 Committer: Thomas Gleixner <tglx@linutronix.de> CommitDate: Wed, 22 Jul 2009 23:18:46 +0200
genirq: Fix UP compile failure caused by irq_thread_check_affinity
Since genirq: Delegate irq affinity setting to the irq thread (591d2fb02ea80472d846c0b8507007806bdd69cc) compilation with CONFIG_SMP=n fails with following error:
/usr/src/linux-2.6/kernel/irq/manage.c: In function 'irq_thread_check_affinity': /usr/src/linux-2.6/kernel/irq/manage.c:475: 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: Bruno Premont <bonbons@linux-vserver.org> LKML-Reference: <20090722222232.2eb3e1c4@neptune.home> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
--- kernel/irq/manage.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index f0de36f..61c679d 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -451,6 +451,7 @@ static int irq_wait_for_interrupt(struct irqaction *action) return -1; } +#ifdef CONFIG_SMP /* * 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); free_cpumask_var(mask); } +#else +static inline void +irq_thread_check_affinity(struct irq_desc *desc, struct irqaction *action) { } +#endif /* * Interrupt handler thread
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