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[SCSI] libfc: eliminate disc->event

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There was no need to have the discovery status stored in struct fc_disc.

Change fc_disc_done() to take the discovery status as an argument
and just pass it on to the discovery callback.

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 2009-08-25 14:01:29 -07:00 committed by James Bottomley
parent 00fea930d4
commit 786681b96f
2 changed files with 12 additions and 20 deletions
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31
drivers/scsi/libfc/fc_disc.c
View File

@ -49,7 +49,7 @@ static void fc_disc_gpn_ft_req(struct fc_disc *);
static void fc_disc_gpn_ft_resp(struct fc_seq *, struct fc_frame *, void *);
static int fc_disc_new_target(struct fc_disc *, struct fc_rport_priv *,
struct fc_rport_identifiers *);
static void fc_disc_done(struct fc_disc *);
static void fc_disc_done(struct fc_disc *, enum fc_disc_event);
static void fc_disc_timeout(struct work_struct *);
static void fc_disc_single(struct fc_disc *, struct fc_disc_port *);
static void fc_disc_restart(struct fc_disc *);
@ -329,8 +329,7 @@ static void fc_disc_start(void (*disc_callback)(struct fc_lport *,
if (rdata) {
kref_get(&rdata->kref);
if (!fc_disc_new_target(disc, rdata, &rdata->ids)) {
disc->event = DISC_EV_SUCCESS;
fc_disc_done(disc);
fc_disc_done(disc, DISC_EV_SUCCESS);
}
kref_put(&rdata->kref, rdata->local_port->tt.rport_destroy);
} else {
@ -404,20 +403,18 @@ static int fc_disc_new_target(struct fc_disc *disc,
/**
* fc_disc_done() - Discovery has been completed
* @disc: FC discovery context
* @event: discovery completion status
*
* Locking Note: This function expects that the disc mutex is locked before
* it is called. The discovery callback is then made with the lock released,
* and the lock is re-taken before returning from this function
*/
static void fc_disc_done(struct fc_disc *disc)
static void fc_disc_done(struct fc_disc *disc, enum fc_disc_event event)
{
struct fc_lport *lport = disc->lport;
enum fc_disc_event event;
FC_DISC_DBG(disc, "Discovery complete\n");
event = disc->event;
disc->event = DISC_EV_NONE;
if (disc->requested)
fc_disc_gpn_ft_req(disc);
else
@ -460,11 +457,8 @@ static void fc_disc_error(struct fc_disc *disc, struct fc_frame *fp)
}
disc->retry_count++;
schedule_delayed_work(&disc->disc_work, delay);
} else {
/* exceeded retries */
disc->event = DISC_EV_FAILED;
fc_disc_done(disc);
}
} else
fc_disc_done(disc, DISC_EV_FAILED);
}
}
@ -503,10 +497,12 @@ err:
}
/**
* fc_disc_gpn_ft_parse() - Parse the list of IDs and names resulting from a request
* fc_disc_gpn_ft_parse() - Parse the body of the dNS GPN_FT response.
* @lport: Fibre Channel host port instance
* @buf: GPN_FT response buffer
* @len: size of response buffer
*
* Goes through the list of IDs and names resulting from a request.
*/
static int fc_disc_gpn_ft_parse(struct fc_disc *disc, void *buf, size_t len)
{
@ -577,8 +573,7 @@ static int fc_disc_gpn_ft_parse(struct fc_disc *disc, void *buf, size_t len)
}
if (np->fp_flags & FC_NS_FID_LAST) {
disc->event = DISC_EV_SUCCESS;
fc_disc_done(disc);
fc_disc_done(disc, DISC_EV_SUCCESS);
len = 0;
break;
}
@ -669,8 +664,7 @@ static void fc_disc_gpn_ft_resp(struct fc_seq *sp, struct fc_frame *fp,
FC_DISC_DBG(disc, "GPN_FT rejected reason %x exp %x "
"(check zoning)\n", cp->ct_reason,
cp->ct_explan);
disc->event = DISC_EV_FAILED;
fc_disc_done(disc);
fc_disc_done(disc, DISC_EV_FAILED);
} else {
FC_DISC_DBG(disc, "GPN_FT unexpected response code "
"%x\n", ntohs(cp->ct_cmd));
@ -782,7 +776,6 @@ int fc_disc_init(struct fc_lport *lport)
disc->lport = lport;
disc->delay = FC_DISC_DELAY;
disc->event = DISC_EV_NONE;
return 0;
}

1
include/scsi/libfc.h
View File

@ -679,7 +679,6 @@ struct fc_disc {
unsigned char requested;
unsigned short seq_count;
unsigned char buf_len;
enum fc_disc_event event;
void (*disc_callback)(struct fc_lport *,
enum fc_disc_event);