From: Heiko Carstens Date: Wed, 21 Feb 2007 08:28:00 +0000 (+0100) Subject: [SCSI] zfcp: fix likely/unlikely usage X-Git-Tag: v2.6.22-rc1~1015^2~86 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=862794fa3fd4c8a44ee22582418736c93e0d3c3a;p=linux-2.6-omap-h63xx.git [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 Signed-off-by: Heiko Carstens Signed-off-by: James Bottomley --- diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index ef16f7ca4bb..4c0a59afd5c 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",