[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
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -299,9 +299,10 @@
}
/* 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 @@
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",