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

Pull SCSI updates from James Bottomley:
 "This is mostly updates of the usual drivers: UFS, esp_scsi, NCR5380,
  qla2xxx, lpfc, libsas, hisi_sas.

  In addition there's a set of mostly small updates to the target
  subsystem a set of conversions to the generic DMA API, which do have
  some potential for issues in the older drivers but we'll handle those
  as case by case fixes.

  A new myrs driver for the DAC960/mylex raid controllers to replace the
  block based DAC960 which is also being removed by Jens in this merge
  window.

  Plus the usual slew of trivial changes"

[ "myrs" stands for "MYlex Raid Scsi". Obviously. Silly of me to even
  wonder. There's also a "myrb" driver, where the 'b' stands for
  'block'. Truly, somebody has got mad naming skillz. - Linus ]

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (237 commits)
  scsi: myrs: Fix the processor absent message in processor_show()
  scsi: myrs: Fix a logical vs bitwise bug
  scsi: hisi_sas: Fix NULL pointer dereference
  scsi: myrs: fix build failure on 32 bit
  scsi: fnic: replace gross legacy tag hack with blk-mq hack
  scsi: mesh: switch to generic DMA API
  scsi: ips: switch to generic DMA API
  scsi: smartpqi: fully convert to the generic DMA API
  scsi: vmw_pscsi: switch to generic DMA API
  scsi: snic: switch to generic DMA API
  scsi: qla4xxx: fully convert to the generic DMA API
  scsi: qla2xxx: fully convert to the generic DMA API
  scsi: qla1280: switch to generic DMA API
  scsi: qedi: fully convert to the generic DMA API
  scsi: qedf: fully convert to the generic DMA API
  scsi: pm8001: switch to generic DMA API
  scsi: nsp32: switch to generic DMA API
  scsi: mvsas: fully convert to the generic DMA API
  scsi: mvumi: switch to generic DMA API
  scsi: mpt3sas: switch to generic DMA API
  ...

1 files changed, 7 insertions, 12 deletions

diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 86c0156e6c88..4cf33e2cc705 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1778,7 +1778,7 @@ EXPORT_SYMBOL(target_submit_tmr);
 void transport_generic_request_failure(struct se_cmd *cmd,
 		sense_reason_t sense_reason)
 {
-	int ret = 0, post_ret = 0;
+	int ret = 0;
 
 	pr_debug("-----[ Storage Engine Exception; sense_reason %d\n",
 		 sense_reason);
@@ -1789,13 +1789,8 @@ void transport_generic_request_failure(struct se_cmd *cmd,
 	 */
 	transport_complete_task_attr(cmd);
 
-	/*
-	 * Handle special case for COMPARE_AND_WRITE failure, where the
-	 * callback is expected to drop the per device ->caw_sem.
-	 */
-	if ((cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE) &&
-	     cmd->transport_complete_callback)
-		cmd->transport_complete_callback(cmd, false, &post_ret);
+	if (cmd->transport_complete_callback)
+		cmd->transport_complete_callback(cmd, false, NULL);
 
 	if (transport_check_aborted_status(cmd, 1))
 		return;
@@ -2012,7 +2007,7 @@ void target_execute_cmd(struct se_cmd *cmd)
 	 * Determine if frontend context caller is requesting the stopping of
 	 * this command for frontend exceptions.
 	 *
-	 * If the received CDB has aleady been aborted stop processing it here.
+	 * If the received CDB has already been aborted stop processing it here.
 	 */
 	spin_lock_irq(&cmd->t_state_lock);
 	if (__transport_check_aborted_status(cmd, 1)) {
@@ -2516,7 +2511,7 @@ transport_generic_new_cmd(struct se_cmd *cmd)
 	}
 
 	/*
-	 * Determine is the TCM fabric module has already allocated physical
+	 * Determine if the TCM fabric module has already allocated physical
 	 * memory, and is directly calling transport_generic_map_mem_to_cmd()
 	 * beforehand.
 	 */
@@ -2754,7 +2749,7 @@ static void target_release_cmd_kref(struct kref *kref)
 	if (se_sess) {
 		spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
 		list_del_init(&se_cmd->se_cmd_list);
-		if (list_empty(&se_sess->sess_cmd_list))
+		if (se_sess->sess_tearing_down && list_empty(&se_sess->sess_cmd_list))
 			wake_up(&se_sess->cmd_list_wq);
 		spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
 	}
@@ -2907,7 +2902,7 @@ void target_wait_for_sess_cmds(struct se_session *se_sess)
 
 	spin_lock_irq(&se_sess->sess_cmd_lock);
 	do {
-		ret = wait_event_interruptible_lock_irq_timeout(
+		ret = wait_event_lock_irq_timeout(
 				se_sess->cmd_list_wq,
 				list_empty(&se_sess->sess_cmd_list),
 				se_sess->sess_cmd_lock, 180 * HZ);