[SCSI] zfcp: fix likely/unlikely usage

zfcp_fsf_protstatus_eval() takes always the 'wrong' branch.

Likely Profiling Results
 ---------------------------------------------------------
[+- ] Type | # True | # False | Function:Filename@Line
+unlikely  |   11042|        0  zfcp_fsf_protstatus_eval()
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/s390/scsi/zfcp_fsf.c

@@ -299,9 +299,10 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req)
 	}
 
 	/* log additional information provided by FSF (if any) */
-	if (unlikely(qtcb->header.log_length)) {
+	if (likely(qtcb->header.log_length)) {
 		/* do not trust them ;-) */
-		if (qtcb->header.log_start > sizeof(struct fsf_qtcb)) {
+		if (unlikely(qtcb->header.log_start >
+			     sizeof(struct fsf_qtcb))) {
 			ZFCP_LOG_NORMAL
 			    ("bug: ULP (FSF logging) log data starts "
 			     "beyond end of packet header. Ignored. "
@@ -310,8 +311,9 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req)
 			     sizeof(struct fsf_qtcb));
 			goto forget_log;
 		}
-		if ((size_t) (qtcb->header.log_start + qtcb->header.log_length)
-		    > sizeof(struct fsf_qtcb)) {
+		if (unlikely((size_t) (qtcb->header.log_start +
+				       qtcb->header.log_length) >
+			     sizeof(struct fsf_qtcb))) {
 			ZFCP_LOG_NORMAL("bug: ULP (FSF logging) log data ends "
 					"beyond end of packet header. Ignored. "
 					"(start=%i, length=%i, size=%li)\n",