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[SCSI] hpsa: Add an shost_to_hba helper function.

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Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Stephen M. Cameron 2010-02-04 08:43:11 -06:00 • committed by James Bottomley
parent 01fb21870d
commit a23513e841
1 changed files with 7 additions and 2 deletions
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9
drivers/scsi/hpsa.c
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@ -197,6 +197,12 @@ static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev)
return (struct ctlr_info *) *priv; return (struct ctlr_info *) *priv;
} }
static inline struct ctlr_info *shost_to_hba(struct Scsi_Host *sh)
{
unsigned long *priv = shost_priv(sh);
return (struct ctlr_info *) *priv;
}
static struct task_struct *hpsa_scan_thread; static struct task_struct *hpsa_scan_thread;
static DEFINE_MUTEX(hpsa_scan_mutex); static DEFINE_MUTEX(hpsa_scan_mutex);
static LIST_HEAD(hpsa_scan_q); static LIST_HEAD(hpsa_scan_q);
@ -381,8 +387,7 @@ static ssize_t host_store_rescan(struct device *dev,
{ {
struct ctlr_info *h; struct ctlr_info *h;
struct Scsi_Host *shost = class_to_shost(dev); struct Scsi_Host *shost = class_to_shost(dev);
unsigned long *priv = shost_priv(shost); h = shost_to_hba(shost);
h = (struct ctlr_info *) *priv;
if (add_to_scan_list(h)) { if (add_to_scan_list(h)) {
wake_up_process(hpsa_scan_thread); wake_up_process(hpsa_scan_thread);
wait_for_completion_interruptible(&h->scan_wait); wait_for_completion_interruptible(&h->scan_wait);