[XFS] Undo bit ops cleanup mod due to regression on 32-bit powermac

platform.

SGI-PV: 974005
SGI-Modid: xfs-linux-melb:xfs-kern:30558a
Signed-off-by: NLachlan McIlroy <lachlan@sgi.com>

fs/xfs/xfs_bit.h

@@ -61,15 +61,15 @@ static inline int xfs_highbit64(__uint64_t v)
 /* Get low bit set out of 32-bit argument, -1 if none set */
 static inline int xfs_lowbit32(__uint32_t v)
 {
-	__uint32_t t = v;
-	return (t) ? find_first_bit((unsigned long *)&t, 32) : -1;
+	unsigned long	t = v;
+	return (v) ? find_first_bit(&t, 32) : -1;
 }
 
 /* Get low bit set out of 64-bit argument, -1 if none set */
 static inline int xfs_lowbit64(__uint64_t v)
 {
-	__uint64_t t = v;
-	return (t) ? find_first_bit((unsigned long *)&t, 64) : -1;
+	unsigned long	t = v;
+	return (v) ? find_first_bit(&t, 64) : -1;
 }
 
 /* Return whether bitmap is empty (1 == empty) */