Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "First round of SCSI updates for the 4.6+ merge window.

  This batch includes the usual quota of driver updates (bnx2fc, mp3sas,
  hpsa, ncr5380, lpfc, hisi_sas, snic, aacraid, megaraid_sas).  There's
  also a multiqueue update for scsi_debug, assorted bug fixes and a few
  other minor updates (refactor of scsi_sg_pools into generic code, alua
  and VPD updates, and struct timeval conversions)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (138 commits)
  mpt3sas: Used "synchronize_irq()"API to synchronize timed-out IO & TMs
  mpt3sas: Set maximum transfer length per IO to 4MB for VDs
  mpt3sas: Updating mpt3sas driver version to 13.100.00.00
  mpt3sas: Fix initial Reference tag field for 4K PI drives.
  mpt3sas: Handle active cable exception event
  mpt3sas: Update MPI header to 2.00.42
  Revert "lpfc: Delete unnecessary checks before the function call mempool_destroy"
  eata_pio: missing break statement
  hpsa: Fix type ZBC conditional checks
  scsi_lib: Decode T10 vendor IDs
  scsi_dh_alua: do not fail for unknown VPD identification
  scsi_debug: use locally assigned naa
  scsi_debug: uuid for lu name
  scsi_debug: vpd and mode page work
  scsi_debug: add multiple queue support
  bfa: fix bfa_fcb_itnim_alloc() error handling
  megaraid_sas: Downgrade two success messages to info
  cxlflash: Fix to resolve dead-lock during EEH recovery
  scsi_debug: rework resp_report_luns
  scsi_debug: use pdt constants
  ...

1 files changed, 16 insertions, 3 deletions

diff --git a/drivers/scsi/snic/snic_disc.c b/drivers/scsi/snic/snic_disc.c
index 5f6321759ad9..b0fefd67cac3 100644
--- a/drivers/scsi/snic/snic_disc.c
+++ b/drivers/scsi/snic/snic_disc.c
@@ -171,7 +171,7 @@ snic_scsi_scan_tgt(struct work_struct *work)
 			 tgt->channel,
 			 tgt->scsi_tgt_id,
 			 SCAN_WILD_CARD,
-			 1);
+			 SCSI_SCAN_RESCAN);
 
 	spin_lock_irqsave(shost->host_lock, flags);
 	tgt->flags &= ~SNIC_TGT_SCAN_PENDING;
@@ -480,10 +480,21 @@ int
 snic_disc_start(struct snic *snic)
 {
 	struct snic_disc *disc = &snic->disc;
+	unsigned long flags;
 	int ret = 0;
 
 	SNIC_SCSI_DBG(snic->shost, "Discovery Start.\n");
 
+	spin_lock_irqsave(&snic->snic_lock, flags);
+	if (snic->in_remove) {
+		spin_unlock_irqrestore(&snic->snic_lock, flags);
+		SNIC_ERR("snic driver removal in progress ...\n");
+		ret = 0;
+
+		return ret;
+	}
+	spin_unlock_irqrestore(&snic->snic_lock, flags);
+
 	mutex_lock(&disc->mutex);
 	if (disc->state == SNIC_DISC_PENDING) {
 		disc->req_cnt++;
@@ -533,6 +544,8 @@ snic_tgt_del_all(struct snic *snic)
 	struct list_head *cur, *nxt;
 	unsigned long flags;
 
+	scsi_flush_work(snic->shost);
+
 	mutex_lock(&snic->disc.mutex);
 	spin_lock_irqsave(snic->shost->host_lock, flags);
 
@@ -545,7 +558,7 @@ snic_tgt_del_all(struct snic *snic)
 		tgt = NULL;
 	}
 	spin_unlock_irqrestore(snic->shost->host_lock, flags);
-
-	scsi_flush_work(snic->shost);
 	mutex_unlock(&snic->disc.mutex);
+
+	flush_workqueue(snic_glob->event_q);
 } /* end of snic_tgt_del_all */