cciss: hoist tag masking out of loop

In process_nonindexed_cmd, hoist figuring of masked tag out of loop since
it is the same throughout.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

drivers/block/cciss.c

@@ -3433,14 +3433,12 @@ static inline u32 process_indexed_cmd(ctlr_info_t *h, u32 raw_tag)
 /* process completion of a non-indexed command */
 static inline u32 process_nonindexed_cmd(ctlr_info_t *h, u32 raw_tag)
 {
-	u32 tag;
 	CommandList_struct *c = NULL;
 	__u32 busaddr_masked, tag_masked;
 
-	tag = cciss_tag_discard_error_bits(raw_tag);
+	tag_masked = cciss_tag_discard_error_bits(raw_tag);
 	list_for_each_entry(c, &h->cmpQ, list) {
 		busaddr_masked = cciss_tag_discard_error_bits(c->busaddr);
-		tag_masked = cciss_tag_discard_error_bits(tag);
 		if (busaddr_masked == tag_masked) {
 			finish_cmd(h, c, raw_tag);
 			return next_command(h);