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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2007-02-21 09:28:00 +0100 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-03-11 11:12:36 -0500 |
| commit | 862794fa3fd4c8a44ee22582418736c93e0d3c3a (patch) | |
| tree | eb387c2f57c22a93cdb770a9c93e63bd4ef47e19 /drivers/s390 | |
| parent | be521466feb3bb1cd89de82a2b1d080e9ebd3cb6 (diff) | |
| download | linux-862794fa3fd4c8a44ee22582418736c93e0d3c3a.tar.gz linux-862794fa3fd4c8a44ee22582418736c93e0d3c3a.tar.bz2 linux-862794fa3fd4c8a44ee22582418736c93e0d3c3a.zip | |
[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>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/scsi/zfcp_fsf.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index ef16f7ca4bb1..4c0a59afd5c8 100644 --- 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", |