a7y18lte-ubports/android_kernel_samsung_universal7885
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[SCSI] libfcoe: change fip_select to return new FCF

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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 committed by James Bottomley
parent 981c1154b2
commit ba9cd5d095
1 changed files with 8 additions and 10 deletions
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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_timer_work(struct work_struct *);
static void fcoe_ctlr_recv_work(struct work_struct *); static void fcoe_ctlr_recv_work(struct work_struct *);
static int fcoe_ctlr_flogi_retry(struct fcoe_ctlr *); 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 void fcoe_ctlr_vn_start(struct fcoe_ctlr *);
static int fcoe_ctlr_vn_recv(struct fcoe_ctlr *, struct sk_buff *); 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) * fcoe_ctlr_select() - Select the best FCF (if possible)
* @fip: The FCoE controller * @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 are conflicting advertisements, no FCF can be chosen.
* *
* If there is already a selected FCF, this will choose a better one or * If there is already a selected FCF, this will choose a better one or
@ -1405,7 +1406,7 @@ drop:
* *
* Called with lock held. * 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 *fcf;
struct fcoe_fcf *best = fip->sel_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)) if (time_before(fip->ctlr_ka_time, fip->timer.expires))
mod_timer(&fip->timer, fip->ctlr_ka_time); 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); mutex_lock(&fip->ctlr_mutex);
spin_lock_bh(&fip->ctlr_lock); spin_lock_bh(&fip->ctlr_lock);
LIBFCOE_FIP_DBG(fip, "re-sending FLOGI - reselect\n"); LIBFCOE_FIP_DBG(fip, "re-sending FLOGI - reselect\n");
fcoe_ctlr_select(fip); fcf = fcoe_ctlr_select(fip);
fcf = fip->sel_fcf;
if (!fcf || fcf->flogi_sent) { if (!fcf || fcf->flogi_sent) {
kfree_skb(fip->flogi_req); kfree_skb(fip->flogi_req);
fip->flogi_req = NULL; fip->flogi_req = NULL;
@ -1548,14 +1549,12 @@ static void fcoe_ctlr_flogi_send(struct fcoe_ctlr *fip)
*/ */
if (fcf->flogi_sent) { if (fcf->flogi_sent) {
LIBFCOE_FIP_DBG(fip, "sending FLOGI - reselect\n"); LIBFCOE_FIP_DBG(fip, "sending FLOGI - reselect\n");
fcoe_ctlr_select(fip); fcf = fcoe_ctlr_select(fip);
fcf = fip->sel_fcf;
if (!fcf || fcf->flogi_sent) { if (!fcf || fcf->flogi_sent) {
LIBFCOE_FIP_DBG(fip, "sending FLOGI - clearing\n"); LIBFCOE_FIP_DBG(fip, "sending FLOGI - clearing\n");
list_for_each_entry(fcf, &fip->fcfs, list) list_for_each_entry(fcf, &fip->fcfs, list)
fcf->flogi_sent = 0; fcf->flogi_sent = 0;
fcoe_ctlr_select(fip); fcf = fcoe_ctlr_select(fip);
fcf = fip->sel_fcf;
} }
} }
if (fcf) { if (fcf) {
@ -1612,8 +1611,7 @@ static void fcoe_ctlr_timer_work(struct work_struct *work)
sel = fip->sel_fcf; sel = fip->sel_fcf;
if (!sel && fip->sel_time) { if (!sel && fip->sel_time) {
if (time_after_eq(jiffies, fip->sel_time)) { if (time_after_eq(jiffies, fip->sel_time)) {
fcoe_ctlr_select(fip); sel = fcoe_ctlr_select(fip);
sel = fip->sel_fcf;
fip->sel_time = 0; fip->sel_time = 0;
} else if (time_after(next_timer, fip->sel_time)) } else if (time_after(next_timer, fip->sel_time))
next_timer = fip->sel_time; next_timer = fip->sel_time;