parisc: avoid unitialized variable warning in pa_memcpy()
Avoid this warning, while still prevent gcc from optimizing away the exception code:
arch/parisc/lib/memcpy.c: In function ‘pa_memcpy’:
arch/parisc/lib/memcpy.c:256:2: warning: ‘dummy’ may be used uninitialized in this function [-Wuninitialized]
Signed-off-by: Helge Deller <deller@gmx.de>
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 1dbca5c..a49cc81 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -68,7 +68,7 @@
DECLARE_PER_CPU(struct exception_data, exception_data);
#define preserve_branch(label) do { \
- volatile int dummy; \
+ volatile int dummy = 0; \
/* The following branch is never taken, it's just here to */ \
/* prevent gcc from optimizing away our exception code. */ \
if (unlikely(dummy != dummy)) \