Commit b33394ba authored Aug 25, 2017 by Thomas Gleixner

genirq/proc: Avoid uninitalized variable warning



kernel/irq/proc.c: In function ‘show_irq_affinity’:
include/linux/cpumask.h:24:29: warning: ‘mask’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define cpumask_bits(maskp) ((maskp)->bits)

gcc is silly, but admittedly it can't know that this won't be called with
anything else than the enumerated constants.

Shut up the warning by creating a default clause.

Fixes: 6bc6d4ab ("genirq/proc: Use the the accessor to report the effective affinity
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

parent 20c4d49c

kernel/irq/proc.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -63,9 +63,9 @@ static int show_irq_affinity(int type, struct seq_file *m)
		#ifdef CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK
		mask = irq_data_get_effective_affinity_mask(&desc->irq_data);
		break;
		#else
		return -EINVAL;
		#endif
		default:
		return -EINVAL;
		}

		switch (type) {

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