[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>

diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index ef16f7c..4c0a59a 100644 (file)
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/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",