Commit-ID: b33394ba5c0974a578c24b2fecbb91a984da5e09
Gitweb: http://git.kernel.org/tip/b33394ba5c0974a578c24b2fecbb91a984da5e09
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Fri, 25 Aug 2017 22:34:05 +0200
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Fri, 25 Aug 2017 22:40:26 +0200
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: 6bc6d4abd22e ("genirq/proc: Use the the accessor to report the effective affinity
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
kernel/irq/proc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 9f62f9a..6376b4a 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -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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