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[SCSI] fcoe, libfc: fix double fcoe_softc memory alloc 

The foce_softc mem was reserved by libfc_host_alloc as well as
by fcoe_host_alloc.

Removes one liner fcoe_host_alloc completely, instead directly calls
libfc_host_alloc to alloc scsi_host with libfc for just one fcoe_softc
as fcoe private data.

Moves libfc_host_alloc to libfc.h since it is a libfc API, placed
lport_priv API adjacent to libfc_host_alloc since this is related
to scsi_host priv data.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Vasu Dev 2009-03-17 11:42:29 -07:00 committed by James Bottomley
parent fdd78027fd
commit a0a25da2a4
2 changed files with 19 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
drivers/scsi/fcoe/fcoe.c
View File

@ -70,8 +70,6 @@ static struct fc_lport *fcoe_hostlist_lookup(const struct net_device *);
static int fcoe_hostlist_add(const struct fc_lport *); static int fcoe_hostlist_add(const struct fc_lport *);
static int fcoe_hostlist_remove(const struct fc_lport *); static int fcoe_hostlist_remove(const struct fc_lport *);
static struct Scsi_Host *fcoe_host_alloc(struct scsi_host_template *, int);
static int fcoe_check_wait_queue(struct fc_lport *); static int fcoe_check_wait_queue(struct fc_lport *);
static void fcoe_recv_flogi(struct fcoe_softc *, struct fc_frame *, u8 *); static void fcoe_recv_flogi(struct fcoe_softc *, struct fc_frame *, u8 *);
static int fcoe_device_notification(struct notifier_block *, ulong, void *); static int fcoe_device_notification(struct notifier_block *, ulong, void *);
@ -464,8 +462,8 @@ static int fcoe_if_create(struct net_device *netdev)
if (lp) if (lp)
return -EEXIST; return -EEXIST;
shost = fcoe_host_alloc(&fcoe_shost_template, shost = libfc_host_alloc(&fcoe_shost_template,
sizeof(struct fcoe_softc)); sizeof(struct fcoe_softc));
if (!shost) { if (!shost) {
FC_DBG("Could not allocate host structure\n"); FC_DBG("Could not allocate host structure\n");
return -ENOMEM; return -ENOMEM;
@ -1715,33 +1713,6 @@ void fcoe_clean_pending_queue(struct fc_lport *lp)
} }
EXPORT_SYMBOL_GPL(fcoe_clean_pending_queue); EXPORT_SYMBOL_GPL(fcoe_clean_pending_queue);
/**
* libfc_host_alloc() - Allocate a Scsi_Host with room for the fc_lport
* @sht: ptr to the scsi host templ
* @priv_size: size of private data after fc_lport
*
* Returns: ptr to Scsi_Host
* TODO: to libfc?
*/
static inline struct Scsi_Host *
libfc_host_alloc(struct scsi_host_template *sht, int priv_size)
{
return scsi_host_alloc(sht, sizeof(struct fc_lport) + priv_size);
}
/**
* fcoe_host_alloc() - Allocate a Scsi_Host with room for the fcoe_softc
* @sht: ptr to the scsi host templ
* @priv_size: size of private data after fc_lport
*
* Returns: ptr to Scsi_Host
*/
struct Scsi_Host *fcoe_host_alloc(struct scsi_host_template *sht, int priv_size)
{
return libfc_host_alloc(sht, sizeof(struct fcoe_softc) + priv_size);
}
EXPORT_SYMBOL_GPL(fcoe_host_alloc);
/** /**
* fcoe_reset() - Resets the fcoe * fcoe_reset() - Resets the fcoe
* @shost: shost the reset is from * @shost: shost the reset is from

22
include/scsi/libfc.h
View File

@ -696,11 +696,6 @@ struct fc_lport {
/* /*
* FC_LPORT HELPER FUNCTIONS * FC_LPORT HELPER FUNCTIONS
*****************************/ *****************************/
static inline void *lport_priv(const struct fc_lport *lp)
{
return (void *)(lp + 1);
}
static inline int fc_lport_test_ready(struct fc_lport *lp) static inline int fc_lport_test_ready(struct fc_lport *lp)
{ {
return lp->state == LPORT_ST_READY; return lp->state == LPORT_ST_READY;
@ -743,6 +738,23 @@ static inline struct fcoe_dev_stats *fc_lport_get_stats(struct fc_lport *lp)
return per_cpu_ptr(lp->dev_stats, smp_processor_id()); return per_cpu_ptr(lp->dev_stats, smp_processor_id());
} }
static inline void *lport_priv(const struct fc_lport *lp)
{
return (void *)(lp + 1);
}
/**
* libfc_host_alloc() - Allocate a Scsi_Host with room for the fc_lport
* @sht: ptr to the scsi host templ
* @priv_size: size of private data after fc_lport
*
* Returns: ptr to Scsi_Host
*/
static inline struct Scsi_Host *
libfc_host_alloc(struct scsi_host_template *sht, int priv_size)
{
return scsi_host_alloc(sht, sizeof(struct fc_lport) + priv_size);
}
/* /*
* LOCAL PORT LAYER * LOCAL PORT LAYER