From: Joe Eykholt <jeykholt@xxxxxxxxx>
The check for conflicting fabrics in fcoe_ctlr_select()
ignores any FCFs that aren't usable. This is a minor
problem now but becomes more pronounced after later patches.
Signed-off-by: Joe Eykholt <jeykholt@xxxxxxxxx>
Signed-off-by: Robert Love <robert.w.love@xxxxxxxxx>
---
drivers/scsi/fcoe/libfcoe.c | 17 ++++++++++-------
1 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index 4d0be20..826c260 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -1361,12 +1361,22 @@ static void fcoe_ctlr_select(struct fcoe_ctlr *fip)
{
struct fcoe_fcf *fcf;
struct fcoe_fcf *best = NULL;
+ struct fcoe_fcf *first;
+
+ first = list_first_entry(&fip->fcfs, struct fcoe_fcf, list);
list_for_each_entry(fcf, &fip->fcfs, list) {
LIBFCOE_FIP_DBG(fip, "consider FCF for fab %16.16llx "
"VFID %d map %x val %d\n",
fcf->fabric_name, fcf->vfid,
fcf->fc_map, fcoe_ctlr_mtu_valid(fcf));
+ if (fcf->fabric_name != first->fabric_name ||
+ fcf->vfid != first->vfid ||
+ fcf->fc_map != first->fc_map) {
+ LIBFCOE_FIP_DBG(fip, "Conflicting fabric, VFID, "
+ "or FC-MAP\n");
+ return NULL;
+ }
if (!fcoe_ctlr_fcf_usable(fcf)) {
LIBFCOE_FIP_DBG(fip, "FCF for fab %16.16llx "
"map %x %svalid %savailable\n",
@@ -1380,13 +1390,6 @@ static void fcoe_ctlr_select(struct fcoe_ctlr *fip)
best = fcf;
continue;
}
- if (fcf->fabric_name != best->fabric_name ||
- fcf->vfid != best->vfid ||
- fcf->fc_map != best->fc_map) {
- LIBFCOE_FIP_DBG(fip, "Conflicting fabric, VFID, "
- "or FC-MAP\n");
- return;
- }
if (fcf->pri < best->pri)
best = fcf;
}
--
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