MN10300: Don't cast away the volatile in test_bit()

Don't cast away the volatile in test_bit()'s parameter when we change its type
from const volatile void * so that we can dereference it.
Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com>
Signed-off-by: David Howells <dhowells@redhat.com>

arch/mn10300/include/asm/bitops.h

@@ -72,7 +72,7 @@ static inline void __clear_bit(unsigned long nr, volatile void *addr)
  */
 static inline int test_bit(unsigned long nr, const volatile void *addr)
 {
-	return 1UL & (((const unsigned int *) addr)[nr >> 5] >> (nr & 31));
+	return 1UL & (((const volatile unsigned int *) addr)[nr >> 5] >> (nr & 31));
 }
 
 /*