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authorJoe Eykholt <jeykholt@cisco.com>2010-11-30 16:20:12 -0800
committerJames Bottomley <James.Bottomley@suse.de>2010-12-21 12:24:34 -0600
commitba9cd5d095b42271588c20ccd6ddd561d0e4cc1e (patch)
tree81b1f70e4a411c7e9d1415016a67e549394f430a /drivers/scsi
parent981c1154b240ee77133a478fcd3853ac18111672 (diff)
[SCSI] libfcoe: change fip_select to return new FCF
Neaten several calls to fip_select() by having it return the pointer to the new FCF. Signed-off-by: Joe Eykholt <jeykholt@cisco.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/fcoe/libfcoe.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index 1a0bb230dd0..625c6be2539 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -55,7 +55,6 @@ static void fcoe_ctlr_timeout(unsigned long);
static void fcoe_ctlr_timer_work(struct work_struct *);
static void fcoe_ctlr_recv_work(struct work_struct *);
static int fcoe_ctlr_flogi_retry(struct fcoe_ctlr *);
-static void fcoe_ctlr_select(struct fcoe_ctlr *);
static void fcoe_ctlr_vn_start(struct fcoe_ctlr *);
static int fcoe_ctlr_vn_recv(struct fcoe_ctlr *, struct sk_buff *);
@@ -1398,6 +1397,8 @@ drop:
* fcoe_ctlr_select() - Select the best FCF (if possible)
* @fip: The FCoE controller
*
+ * Returns the selected FCF, or NULL if none are usable.
+ *
* If there are conflicting advertisements, no FCF can be chosen.
*
* If there is already a selected FCF, this will choose a better one or
@@ -1405,7 +1406,7 @@ drop:
*
* Called with lock held.
*/
-static void fcoe_ctlr_select(struct fcoe_ctlr *fip)
+static struct fcoe_fcf *fcoe_ctlr_select(struct fcoe_ctlr *fip)
{
struct fcoe_fcf *fcf;
struct fcoe_fcf *best = fip->sel_fcf;
@@ -1450,6 +1451,7 @@ static void fcoe_ctlr_select(struct fcoe_ctlr *fip)
if (time_before(fip->ctlr_ka_time, fip->timer.expires))
mod_timer(&fip->timer, fip->ctlr_ka_time);
}
+ return best;
}
/**
@@ -1507,8 +1509,7 @@ static int fcoe_ctlr_flogi_retry(struct fcoe_ctlr *fip)
mutex_lock(&fip->ctlr_mutex);
spin_lock_bh(&fip->ctlr_lock);
LIBFCOE_FIP_DBG(fip, "re-sending FLOGI - reselect\n");
- fcoe_ctlr_select(fip);
- fcf = fip->sel_fcf;
+ fcf = fcoe_ctlr_select(fip);
if (!fcf || fcf->flogi_sent) {
kfree_skb(fip->flogi_req);
fip->flogi_req = NULL;
@@ -1548,14 +1549,12 @@ static void fcoe_ctlr_flogi_send(struct fcoe_ctlr *fip)
*/
if (fcf->flogi_sent) {
LIBFCOE_FIP_DBG(fip, "sending FLOGI - reselect\n");
- fcoe_ctlr_select(fip);
- fcf = fip->sel_fcf;
+ fcf = fcoe_ctlr_select(fip);
if (!fcf || fcf->flogi_sent) {
LIBFCOE_FIP_DBG(fip, "sending FLOGI - clearing\n");
list_for_each_entry(fcf, &fip->fcfs, list)
fcf->flogi_sent = 0;
- fcoe_ctlr_select(fip);
- fcf = fip->sel_fcf;
+ fcf = fcoe_ctlr_select(fip);
}
}
if (fcf) {
@@ -1612,8 +1611,7 @@ static void fcoe_ctlr_timer_work(struct work_struct *work)
sel = fip->sel_fcf;
if (!sel && fip->sel_time) {
if (time_after_eq(jiffies, fip->sel_time)) {
- fcoe_ctlr_select(fip);
- sel = fip->sel_fcf;
+ sel = fcoe_ctlr_select(fip);
fip->sel_time = 0;
} else if (time_after(next_timer, fip->sel_time))
next_timer = fip->sel_time;