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[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>
This commit is contained in:
Joe Eykholt 2010-11-30 16:20:12 -08:00 коммит произвёл James Bottomley
Родитель 981c1154b2
Коммит ba9cd5d095
1 изменённых файлов: 8 добавлений и 10 удалений
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18
drivers/scsi/fcoe/libfcoe.c
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@ -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;