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

Pull SCSI updates from James Bottomley:
 "Only a couple of driver updates this time (lpfc and mpt3sas) plus the
  usual assorted minor fixes and updates. The major core update is a set
  of patches moving retries out of the drivers and into the core"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (84 commits)
  scsi: core: Constify the struct device_type usage
  scsi: libfc: replace deprecated strncpy() with memcpy()
  scsi: lpfc: Replace deprecated strncpy() with strscpy()
  scsi: bfa: Fix function pointer type mismatch for state machines
  scsi: bfa: Fix function pointer type mismatch for hcb_qe->cbfn
  scsi: bfa: Remove additional unnecessary struct declarations
  scsi: csiostor: Avoid function pointer casts
  scsi: qla1280: Remove redundant assignment to variable 'mr'
  scsi: core: Make scsi_bus_type const
  scsi: core: Really include kunit tests with SCSI_LIB_KUNIT_TEST
  scsi: target: tcm_loop: Make tcm_loop_lld_bus const
  scsi: scsi_debug: Make pseudo_lld_bus const
  scsi: iscsi: Make iscsi_flashnode_bus const
  scsi: fcoe: Make fcoe_bus_type const
  scsi: lpfc: Copyright updates for 14.4.0.0 patches
  scsi: lpfc: Update lpfc version to 14.4.0.0
  scsi: lpfc: Change lpfc_vport load_flag member into a bitmask
  scsi: lpfc: Change lpfc_vport fc_flag member into a bitmask
  scsi: lpfc: Protect vport fc_nodes list with an explicit spin lock
  scsi: lpfc: Change nlp state statistic counters into atomic_t
  ...

87 files changed, 2746 insertions, 1835 deletions

diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index 0581f855c72e..c459f709107b 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -1401,7 +1401,6 @@ static struct pci_driver mptfc_driver = {
 static int
 mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
 {
-	MPT_SCSI_HOST *hd;
 	u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
 	unsigned long flags;
 	int rc=1;
@@ -1412,8 +1411,7 @@ mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
 	devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
 			ioc->name, event));
 
-	if (ioc->sh == NULL ||
-		((hd = shost_priv(ioc->sh)) == NULL))
+	if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL)
 		return 1;
 
 	switch (event) {
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index f925f8664c2c..6fb61c88ea11 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -161,28 +161,28 @@ static ssize_t twa_show_stats(struct device *dev,
 	ssize_t len;
 
 	spin_lock_irqsave(tw_dev->host->host_lock, flags);
-	len = snprintf(buf, PAGE_SIZE, "3w-9xxx Driver version: %s\n"
-		       "Current commands posted:   %4d\n"
-		       "Max commands posted:       %4d\n"
-		       "Current pending commands:  %4d\n"
-		       "Max pending commands:      %4d\n"
-		       "Last sgl length:           %4d\n"
-		       "Max sgl length:            %4d\n"
-		       "Last sector count:         %4d\n"
-		       "Max sector count:          %4d\n"
-		       "SCSI Host Resets:          %4d\n"
-		       "AEN's:                     %4d\n",
-		       TW_DRIVER_VERSION,
-		       tw_dev->posted_request_count,
-		       tw_dev->max_posted_request_count,
-		       tw_dev->pending_request_count,
-		       tw_dev->max_pending_request_count,
-		       tw_dev->sgl_entries,
-		       tw_dev->max_sgl_entries,
-		       tw_dev->sector_count,
-		       tw_dev->max_sector_count,
-		       tw_dev->num_resets,
-		       tw_dev->aen_count);
+	len = sysfs_emit(buf, "3w-9xxx Driver version: %s\n"
+			 "Current commands posted:   %4d\n"
+			 "Max commands posted:       %4d\n"
+			 "Current pending commands:  %4d\n"
+			 "Max pending commands:      %4d\n"
+			 "Last sgl length:           %4d\n"
+			 "Max sgl length:            %4d\n"
+			 "Last sector count:         %4d\n"
+			 "Max sector count:          %4d\n"
+			 "SCSI Host Resets:          %4d\n"
+			 "AEN's:                     %4d\n",
+			 TW_DRIVER_VERSION,
+			 tw_dev->posted_request_count,
+			 tw_dev->max_posted_request_count,
+			 tw_dev->pending_request_count,
+			 tw_dev->max_pending_request_count,
+			 tw_dev->sgl_entries,
+			 tw_dev->max_sgl_entries,
+			 tw_dev->sector_count,
+			 tw_dev->max_sector_count,
+			 tw_dev->num_resets,
+			 tw_dev->aen_count);
 	spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
 	return len;
 } /* End twa_show_stats() */
diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c
index 9bdb75dfdcd7..caa6713a62a4 100644
--- a/drivers/scsi/3w-sas.c
+++ b/drivers/scsi/3w-sas.c
@@ -166,24 +166,24 @@ static ssize_t twl_show_stats(struct device *dev,
 	ssize_t len;
 
 	spin_lock_irqsave(tw_dev->host->host_lock, flags);
-	len = snprintf(buf, PAGE_SIZE, "3w-sas Driver version: %s\n"
-		       "Current commands posted:   %4d\n"
-		       "Max commands posted:       %4d\n"
-		       "Last sgl length:           %4d\n"
-		       "Max sgl length:            %4d\n"
-		       "Last sector count:         %4d\n"
-		       "Max sector count:          %4d\n"
-		       "SCSI Host Resets:          %4d\n"
-		       "AEN's:                     %4d\n",
-		       TW_DRIVER_VERSION,
-		       tw_dev->posted_request_count,
-		       tw_dev->max_posted_request_count,
-		       tw_dev->sgl_entries,
-		       tw_dev->max_sgl_entries,
-		       tw_dev->sector_count,
-		       tw_dev->max_sector_count,
-		       tw_dev->num_resets,
-		       tw_dev->aen_count);
+	len = sysfs_emit(buf, "3w-sas Driver version: %s\n"
+			 "Current commands posted:   %4d\n"
+			 "Max commands posted:       %4d\n"
+			 "Last sgl length:           %4d\n"
+			 "Max sgl length:            %4d\n"
+			 "Last sector count:         %4d\n"
+			 "Max sector count:          %4d\n"
+			 "SCSI Host Resets:          %4d\n"
+			 "AEN's:                     %4d\n",
+			 TW_DRIVER_VERSION,
+			 tw_dev->posted_request_count,
+			 tw_dev->max_posted_request_count,
+			 tw_dev->sgl_entries,
+			 tw_dev->max_sgl_entries,
+			 tw_dev->sector_count,
+			 tw_dev->max_sector_count,
+			 tw_dev->num_resets,
+			 tw_dev->aen_count);
 	spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
 	return len;
 } /* End twl_show_stats() */
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index f39c9ec2e781..2c0fb6da0e60 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -496,28 +496,28 @@ static ssize_t tw_show_stats(struct device *dev, struct device_attribute *attr,
 	ssize_t len;
 
 	spin_lock_irqsave(tw_dev->host->host_lock, flags);
-	len = snprintf(buf, PAGE_SIZE, "3w-xxxx Driver version: %s\n"
-		       "Current commands posted:   %4d\n"
-		       "Max commands posted:       %4d\n"
-		       "Current pending commands:  %4d\n"
-		       "Max pending commands:      %4d\n"
-		       "Last sgl length:           %4d\n"
-		       "Max sgl length:            %4d\n"
-		       "Last sector count:         %4d\n"
-		       "Max sector count:          %4d\n"
-		       "SCSI Host Resets:          %4d\n"
-		       "AEN's:                     %4d\n", 
-		       TW_DRIVER_VERSION,
-		       tw_dev->posted_request_count,
-		       tw_dev->max_posted_request_count,
-		       tw_dev->pending_request_count,
-		       tw_dev->max_pending_request_count,
-		       tw_dev->sgl_entries,
-		       tw_dev->max_sgl_entries,
-		       tw_dev->sector_count,
-		       tw_dev->max_sector_count,
-		       tw_dev->num_resets,
-		       tw_dev->aen_count);
+	len = sysfs_emit(buf, "3w-xxxx Driver version: %s\n"
+			 "Current commands posted:   %4d\n"
+			 "Max commands posted:       %4d\n"
+			 "Current pending commands:  %4d\n"
+			 "Max pending commands:      %4d\n"
+			 "Last sgl length:           %4d\n"
+			 "Max sgl length:            %4d\n"
+			 "Last sector count:         %4d\n"
+			 "Max sector count:          %4d\n"
+			 "SCSI Host Resets:          %4d\n"
+			 "AEN's:                     %4d\n",
+			 TW_DRIVER_VERSION,
+			 tw_dev->posted_request_count,
+			 tw_dev->max_posted_request_count,
+			 tw_dev->pending_request_count,
+			 tw_dev->max_pending_request_count,
+			 tw_dev->sgl_entries,
+			 tw_dev->max_sgl_entries,
+			 tw_dev->sector_count,
+			 tw_dev->max_sector_count,
+			 tw_dev->num_resets,
+			 tw_dev->aen_count);
 	spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
 	return len;
 } /* End tw_show_stats() */
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index 857be0f3ae5b..85439e976143 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -2071,7 +2071,7 @@ NCR_700_show_active_tags(struct device *dev, struct device_attribute *attr, char
 {
 	struct scsi_device *SDp = to_scsi_device(dev);
 
-	return snprintf(buf, 20, "%d\n", NCR_700_get_depth(SDp));
+	return sysfs_emit(buf, "%d\n", NCR_700_get_depth(SDp));
 }
 
 static struct device_attribute NCR_700_active_tags_attr = {
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 9ce27092729c..8b40f75fc9d7 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -67,6 +67,15 @@ config SCSI_PROC_FS
 
 	  If unsure say Y.
 
+config SCSI_LIB_KUNIT_TEST
+	tristate "KUnit tests for SCSI Mid Layer's scsi_lib" if !KUNIT_ALL_TESTS
+	depends on KUNIT
+	default KUNIT_ALL_TESTS
+	help
+	  Run SCSI Mid Layer's KUnit tests for scsi_lib.
+
+	  If unsure say N.
+
 comment "SCSI support type (disk, tape, CD-ROM)"
 	depends on SCSI
 
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 70e1cac1975e..b22857c6f3f4 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -1099,7 +1099,7 @@ static void get_container_serial_callback(void *context, struct fib * fibptr)
 			sp[0] = INQD_PDT_DA;
 			sp[1] = scsicmd->cmnd[2];
 			sp[2] = 0;
-			sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
+			sp[3] = scnprintf(sp+4, sizeof(sp)-4, "%08X",
 				le32_to_cpu(get_serial_reply->uid));
 			scsi_sg_copy_from_buffer(scsicmd, sp,
 						 sizeof(sp));
@@ -1169,8 +1169,8 @@ static int setinqserial(struct aac_dev *dev, void *data, int cid)
 	/*
 	 *	This breaks array migration.
 	 */
-	return snprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
-			le32_to_cpu(dev->adapter_info.serial[0]), cid);
+	return scnprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
+			 le32_to_cpu(dev->adapter_info.serial[0]), cid);
 }
 
 static inline void set_sense(struct sense_data *sense_data, u8 sense_key,
diff --git a/drivers/scsi/bfa/bfa.h b/drivers/scsi/bfa/bfa.h
index 7bd2ba1ad4d1..4cb9249e583c 100644
--- a/drivers/scsi/bfa/bfa.h
+++ b/drivers/scsi/bfa/bfa.h
@@ -20,7 +20,6 @@
 struct bfa_s;
 
 typedef void (*bfa_isr_func_t) (struct bfa_s *bfa, struct bfi_msg_s *m);
-typedef void (*bfa_cb_cbfn_status_t) (void *cbarg, bfa_status_t status);
 
 /*
  * Interrupt message handlers
@@ -216,8 +215,27 @@ struct bfa_faa_args_s {
 	bfa_boolean_t		busy;
 };
 
+/*
+ * IOCFC state machine definitions/declarations
+ */
+enum iocfc_event {
+	IOCFC_E_INIT		= 1,	/* IOCFC init request		*/
+	IOCFC_E_START		= 2,	/* IOCFC mod start request	*/
+	IOCFC_E_STOP		= 3,	/* IOCFC stop request		*/
+	IOCFC_E_ENABLE		= 4,	/* IOCFC enable request		*/
+	IOCFC_E_DISABLE		= 5,	/* IOCFC disable request	*/
+	IOCFC_E_IOC_ENABLED	= 6,	/* IOC enabled message		*/
+	IOCFC_E_IOC_DISABLED	= 7,	/* IOC disabled message		*/
+	IOCFC_E_IOC_FAILED	= 8,	/* failure notice by IOC sm	*/
+	IOCFC_E_DCONF_DONE	= 9,	/* dconf read/write done	*/
+	IOCFC_E_CFG_DONE	= 10,	/* IOCFC config complete	*/
+};
+
+struct bfa_iocfc_s;
+typedef void (*bfa_iocfs_fsm_t)(struct bfa_iocfc_s *, enum iocfc_event);
+
 struct bfa_iocfc_s {
-	bfa_fsm_t		fsm;
+	bfa_iocfs_fsm_t		fsm;
 	struct bfa_s		*bfa;
 	struct bfa_iocfc_cfg_s	cfg;
 	u32		req_cq_pi[BFI_IOC_MAX_CQS];
@@ -437,4 +455,12 @@ struct bfa_cb_pending_q_s {
 	(__qe)->data = (__data);				\
 } while (0)
 
+#define bfa_pending_q_init_status(__qe, __cbfn, __cbarg, __data) do {	\
+	bfa_q_qe_init(&((__qe)->hcb_qe.qe));			\
+	(__qe)->hcb_qe.cbfn_status = (__cbfn);			\
+	(__qe)->hcb_qe.cbarg = (__cbarg);			\
+	(__qe)->hcb_qe.pre_rmv = BFA_TRUE;			\
+	(__qe)->data = (__data);				\
+} while (0)
+
 #endif /* __BFA_H__ */
diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c
index 6846ca8f7313..3438d0b8ba06 100644
--- a/drivers/scsi/bfa/bfa_core.c
+++ b/drivers/scsi/bfa/bfa_core.c
@@ -1907,15 +1907,13 @@ bfa_comp_process(struct bfa_s *bfa, struct list_head *comp_q)
 	struct list_head		*qe;
 	struct list_head		*qen;
 	struct bfa_cb_qe_s	*hcb_qe;
-	bfa_cb_cbfn_status_t	cbfn;
 
 	list_for_each_safe(qe, qen, comp_q) {
 		hcb_qe = (struct bfa_cb_qe_s *) qe;
 		if (hcb_qe->pre_rmv) {
 			/* qe is invalid after return, dequeue before cbfn() */
 			list_del(qe);
-			cbfn = (bfa_cb_cbfn_status_t)(hcb_qe->cbfn);
-			cbfn(hcb_qe->cbarg, hcb_qe->fw_status);
+			hcb_qe->cbfn_status(hcb_qe->cbarg, hcb_qe->fw_status);
 		} else
 			hcb_qe->cbfn(hcb_qe->cbarg, BFA_TRUE);
 	}
diff --git a/drivers/scsi/bfa/bfa_cs.h b/drivers/scsi/bfa/bfa_cs.h
index 6b606bf589b4..6650b1dbb1ed 100644
--- a/drivers/scsi/bfa/bfa_cs.h
+++