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

Pull SCSI updates from James Bottomley:
 "Updates to the usual drivers (ufs, smartpqi, NCR5380, mac_scsi, lpfc,
  mpi3mr).

  There are no user visible core changes and a whole series of minor
  updates and fixes. The largest core change is probably the
  simplification of the workqueue allocation path"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (86 commits)
  scsi: smartpqi: update driver version to 2.1.30-031
  scsi: smartpqi: fix volume size updates
  scsi: smartpqi: fix rare system hang during LUN reset
  scsi: smartpqi: add new controller PCI IDs
  scsi: smartpqi: add counter for parity write stream requests
  scsi: smartpqi: correct stream detection
  scsi: smartpqi: Add fw log to kdump
  scsi: bnx2fc: Remove some unused fields in struct bnx2fc_rport
  scsi: qla2xxx: Remove the unused 'del_list_entry' field in struct fc_port
  scsi: ufs: core: Remove ufshcd_urgent_bkops()
  scsi: core: Remove obsoleted declaration for scsi_driverbyte_string()
  scsi: bnx2i: Remove unused declarations
  scsi: core: Simplify an alloc_workqueue() invocation
  scsi: ufs: Simplify alloc*_workqueue() invocation
  scsi: stex: Simplify an alloc_ordered_workqueue() invocation
  scsi: scsi_transport_fc: Simplify alloc_workqueue() invocations
  scsi: snic: Simplify alloc_workqueue() invocations
  scsi: qedi: Simplify an alloc_workqueue() invocation
  scsi: qedf: Simplify alloc_workqueue() invocations
  scsi: myrs: Simplify an alloc_ordered_workqueue() invocation
  ...

79 files changed, 1464 insertions, 742 deletions

diff --git a/drivers/message/fusion/lsi/mpi_cnfg.h b/drivers/message/fusion/lsi/mpi_cnfg.h
index 3770cb1cff7d..1167a16d8fb4 100644
--- a/drivers/message/fusion/lsi/mpi_cnfg.h
+++ b/drivers/message/fusion/lsi/mpi_cnfg.h
@@ -1018,14 +1018,6 @@ typedef struct _CONFIG_PAGE_IOC_2_RAID_VOL
 
 #define MPI_IOCPAGE2_FLAG_VOLUME_INACTIVE           (0x08)
 
-/*
- * Host code (drivers, BIOS, utilities, etc.) should leave this define set to
- * one and check Header.PageLength at runtime.
- */
-#ifndef MPI_IOC_PAGE_2_RAID_VOLUME_MAX
-#define MPI_IOC_PAGE_2_RAID_VOLUME_MAX      (1)
-#endif
-
 typedef struct _CONFIG_PAGE_IOC_2
 {
     CONFIG_PAGE_HEADER          Header;                              /* 00h */
@@ -1034,7 +1026,7 @@ typedef struct _CONFIG_PAGE_IOC_2
     U8                          MaxVolumes;                          /* 09h */
     U8                          NumActivePhysDisks;                  /* 0Ah */
     U8                          MaxPhysDisks;                        /* 0Bh */
-    CONFIG_PAGE_IOC_2_RAID_VOL  RaidVolume[MPI_IOC_PAGE_2_RAID_VOLUME_MAX];/* 0Ch */
+    CONFIG_PAGE_IOC_2_RAID_VOL  RaidVolume[] __counted_by(NumActiveVolumes); /* 0Ch */
 } CONFIG_PAGE_IOC_2, MPI_POINTER PTR_CONFIG_PAGE_IOC_2,
   IOCPage2_t, MPI_POINTER pIOCPage2_t;
 
@@ -1064,21 +1056,13 @@ typedef struct _IOC_3_PHYS_DISK
 } IOC_3_PHYS_DISK, MPI_POINTER PTR_IOC_3_PHYS_DISK,
   Ioc3PhysDisk_t, MPI_POINTER pIoc3PhysDisk_t;
 
-/*
- * Host code (drivers, BIOS, utilities, etc.) should leave this define set to
- * one and check Header.PageLength at runtime.
- */
-#ifndef MPI_IOC_PAGE_3_PHYSDISK_MAX
-#define MPI_IOC_PAGE_3_PHYSDISK_MAX         (1)
-#endif
-
 typedef struct _CONFIG_PAGE_IOC_3
 {
     CONFIG_PAGE_HEADER          Header;                                /* 00h */
     U8                          NumPhysDisks;                          /* 04h */
     U8                          Reserved1;                             /* 05h */
     U16                         Reserved2;                             /* 06h */
-    IOC_3_PHYS_DISK             PhysDisk[MPI_IOC_PAGE_3_PHYSDISK_MAX]; /* 08h */
+    IOC_3_PHYS_DISK             PhysDisk[] __counted_by(NumPhysDisks); /* 08h */
 } CONFIG_PAGE_IOC_3, MPI_POINTER PTR_CONFIG_PAGE_IOC_3,
   IOCPage3_t, MPI_POINTER pIOCPage3_t;
 
@@ -1093,21 +1077,13 @@ typedef struct _IOC_4_SEP
 } IOC_4_SEP, MPI_POINTER PTR_IOC_4_SEP,
   Ioc4Sep_t, MPI_POINTER pIoc4Sep_t;
 
-/*
- * Host code (drivers, BIOS, utilities, etc.) should leave this define set to
- * one and check Header.PageLength at runtime.
- */
-#ifndef MPI_IOC_PAGE_4_SEP_MAX
-#define MPI_IOC_PAGE_4_SEP_MAX              (1)
-#endif
-
 typedef struct _CONFIG_PAGE_IOC_4
 {
     CONFIG_PAGE_HEADER          Header;                         /* 00h */
     U8                          ActiveSEP;                      /* 04h */
     U8                          MaxSEP;                         /* 05h */
     U16                         Reserved1;                      /* 06h */
-    IOC_4_SEP                   SEP[MPI_IOC_PAGE_4_SEP_MAX];    /* 08h */
+    IOC_4_SEP                   SEP[] __counted_by(ActiveSEP);  /* 08h */
 } CONFIG_PAGE_IOC_4, MPI_POINTER PTR_CONFIG_PAGE_IOC_4,
   IOCPage4_t, MPI_POINTER pIOCPage4_t;
 
@@ -2295,14 +2271,6 @@ typedef struct _RAID_VOL0_SETTINGS
 #define MPI_RAID_HOT_SPARE_POOL_6                       (0x40)
 #define MPI_RAID_HOT_SPARE_POOL_7                       (0x80)
 
-/*
- * Host code (drivers, BIOS, utilities, etc.) should leave this define set to
- * one and check Header.PageLength at runtime.
- */
-#ifndef MPI_RAID_VOL_PAGE_0_PHYSDISK_MAX
-#define MPI_RAID_VOL_PAGE_0_PHYSDISK_MAX        (1)
-#endif
-
 typedef struct _CONFIG_PAGE_RAID_VOL_0
 {
     CONFIG_PAGE_HEADER      Header;         /* 00h */
@@ -2321,7 +2289,7 @@ typedef struct _CONFIG_PAGE_RAID_VOL_0
     U8                      DataScrubRate;  /* 25h */
     U8                      ResyncRate;     /* 26h */
     U8                      InactiveStatus; /* 27h */
-    RAID_VOL0_PHYS_DISK     PhysDisk[MPI_RAID_VOL_PAGE_0_PHYSDISK_MAX];/* 28h */
+    RAID_VOL0_PHYS_DISK     PhysDisk[] __counted_by(NumPhysDisks); /* 28h */
 } CONFIG_PAGE_RAID_VOL_0, MPI_POINTER PTR_CONFIG_PAGE_RAID_VOL_0,
   RaidVolumePage0_t, MPI_POINTER pRaidVolumePage0_t;
 
@@ -2455,14 +2423,6 @@ typedef struct _RAID_PHYS_DISK1_PATH
 #define MPI_RAID_PHYSDISK1_FLAG_INVALID         (0x0001)
 
 
-/*
- * Host code (drivers, BIOS, utilities, etc.) should leave this define set to
- * one and check Header.PageLength or NumPhysDiskPaths at runtime.
- */
-#ifndef MPI_RAID_PHYS_DISK1_PATH_MAX
-#define MPI_RAID_PHYS_DISK1_PATH_MAX    (1)
-#endif
-
 typedef struct _CONFIG_PAGE_RAID_PHYS_DISK_1
 {
     CONFIG_PAGE_HEADER              Header;             /* 00h */
@@ -2470,7 +2430,7 @@ typedef struct _CONFIG_PAGE_RAID_PHYS_DISK_1
     U8                              PhysDiskNum;        /* 05h */
     U16                             Reserved2;          /* 06h */
     U32                             Reserved1;          /* 08h */
-    RAID_PHYS_DISK1_PATH            Path[MPI_RAID_PHYS_DISK1_PATH_MAX];/* 0Ch */
+    RAID_PHYS_DISK1_PATH            Path[] __counted_by(NumPhysDiskPaths);/* 0Ch */
 } CONFIG_PAGE_RAID_PHYS_DISK_1, MPI_POINTER PTR_CONFIG_PAGE_RAID_PHYS_DISK_1,
   RaidPhysDiskPage1_t, MPI_POINTER pRaidPhysDiskPage1_t;
 
@@ -2555,14 +2515,6 @@ typedef struct _MPI_SAS_IO_UNIT0_PHY_DATA
 } MPI_SAS_IO_UNIT0_PHY_DATA, MPI_POINTER PTR_MPI_SAS_IO_UNIT0_PHY_DATA,
   SasIOUnit0PhyData, MPI_POINTER pSasIOUnit0PhyData;
 
-/*
- * Host code (drivers, BIOS, utilities, etc.) should leave this define set to
- * one and check Header.PageLength at runtime.
- */
-#ifndef MPI_SAS_IOUNIT0_PHY_MAX
-#define MPI_SAS_IOUNIT0_PHY_MAX         (1)
-#endif
-
 typedef struct _CONFIG_PAGE_SAS_IO_UNIT_0
 {
     CONFIG_EXTENDED_PAGE_HEADER     Header;                             /* 00h */
@@ -2571,7 +2523,7 @@ typedef struct _CONFIG_PAGE_SAS_IO_UNIT_0
     U8                              NumPhys;                            /* 0Ch */
     U8                              Reserved2;                          /* 0Dh */
     U16                             Reserved3;                          /* 0Eh */
-    MPI_SAS_IO_UNIT0_PHY_DATA       PhyData[MPI_SAS_IOUNIT0_PHY_MAX];   /* 10h */
+    MPI_SAS_IO_UNIT0_PHY_DATA       PhyData[] __counted_by(NumPhys);    /* 10h */
 } CONFIG_PAGE_SAS_IO_UNIT_0, MPI_POINTER PTR_CONFIG_PAGE_SAS_IO_UNIT_0,
   SasIOUnitPage0_t, MPI_POINTER pSasIOUnitPage0_t;
 
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 4bf669c55649..738bc4e60a18 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -1856,10 +1856,8 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 	/* Initialize workqueue */
 	INIT_DELAYED_WORK(&ioc->fault_reset_work, mpt_fault_reset_work);
 
-	snprintf(ioc->reset_work_q_name, MPT_KOBJ_NAME_LEN,
-		 "mpt_poll_%d", ioc->id);
-	ioc->reset_work_q = alloc_workqueue(ioc->reset_work_q_name,
-					    WQ_MEM_RECLAIM, 0);
+	ioc->reset_work_q =
+		alloc_workqueue("mpt_poll_%d", WQ_MEM_RECLAIM, 0, ioc->id);
 	if (!ioc->reset_work_q) {
 		printk(MYIOC_s_ERR_FMT "Insufficient memory to add adapter!\n",
 		    ioc->name);
@@ -1986,9 +1984,7 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	INIT_LIST_HEAD(&ioc->fw_event_list);
 	spin_lock_init(&ioc->fw_event_lock);
-	snprintf(ioc->fw_event_q_name, MPT_KOBJ_NAME_LEN, "mpt/%d", ioc->id);
-	ioc->fw_event_q = alloc_workqueue(ioc->fw_event_q_name,
-					  WQ_MEM_RECLAIM, 0);
+	ioc->fw_event_q = alloc_workqueue("mpt/%d", WQ_MEM_RECLAIM, 0, ioc->id);
 	if (!ioc->fw_event_q) {
 		printk(MYIOC_s_ERR_FMT "Insufficient memory to add adapter!\n",
 		    ioc->name);
diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index 8031173c3655..b406fd676da0 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -729,7 +729,6 @@ typedef struct _MPT_ADAPTER
 	struct list_head	 fw_event_list;
 	spinlock_t		 fw_event_lock;
 	u8			 fw_events_off; /* if '1', then ignore events */
-	char 			 fw_event_q_name[MPT_KOBJ_NAME_LEN];
 
 	struct mutex		 sas_discovery_mutex;
 	u8			 sas_discovery_runtime;
@@ -764,7 +763,6 @@ typedef struct _MPT_ADAPTER
 	u8			 fc_link_speed[2];
 	spinlock_t		 fc_rescan_work_lock;
 	struct work_struct	 fc_rescan_work;
-	char			 fc_rescan_work_q_name[MPT_KOBJ_NAME_LEN];
 	struct workqueue_struct *fc_rescan_work_q;
 
 	/* driver forced bus resets count */
@@ -778,7 +776,6 @@ typedef struct _MPT_ADAPTER
 	spinlock_t		  scsi_lookup_lock;
 	u64			dma_mask;
 	u32			  broadcast_aen_busy;
-	char			 reset_work_q_name[MPT_KOBJ_NAME_LEN];
 	struct workqueue_struct *reset_work_q;
 	struct delayed_work	 fault_reset_work;
 
diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index a3c17c4fe69c..91242f26defb 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -1349,11 +1349,8 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	/* initialize workqueue */
 
-	snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name),
-		 "mptfc_wq_%d", sh->host_no);
-	ioc->fc_rescan_work_q =
-		alloc_ordered_workqueue(ioc->fc_rescan_work_q_name,
-					WQ_MEM_RECLAIM);
+	ioc->fc_rescan_work_q = alloc_ordered_workqueue(
+		"mptfc_wq_%d", WQ_MEM_RECLAIM, sh->host_no);
 	if (!ioc->fc_rescan_work_q) {
 		error = -ENOMEM;
 		goto out_mptfc_host;
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index cea3a79d538e..0e10502660de 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -157,7 +157,6 @@ static inline void initialize_SCp(struct scsi_cmnd *cmd)
 	}
 
 	ncmd->status = 0;
-	ncmd->message = 0;
 }
 
 static inline void advance_sg_buffer(struct NCR5380_cmd *ncmd)
@@ -199,7 +198,6 @@ static inline void set_resid_from_SCp(struct scsi_cmnd *cmd)
  * Polls the chip in a reasonably efficient manner waiting for an
  * event to occur. After a short quick poll we begin to yield the CPU
  * (if possible). In irq contexts the time-out is arbitrarily limited.
- * Callers may hold locks as long as they are held in irq mode.
  *
  * Returns 0 if either or both event(s) occurred otherwise -ETIMEDOUT.
  */
@@ -1228,24 +1226,15 @@ out:
 	return ret;
 }
 
-/*
- * Function : int NCR5380_transfer_pio (struct Scsi_Host *instance,
- * unsigned char *phase, int *count, unsigned char **data)
- *
- * Purpose : transfers data in given phase using polled I/O
- *
- * Inputs : instance - instance of driver, *phase - pointer to
- * what phase is expected, *count - pointer to number of
- * bytes to transfer, **data - pointer to data pointer,
- * can_sleep - 1 or 0 when sleeping is permitted or not, respectively.
- *
- * Returns : -1 when different phase is entered without transferring
- * maximum number of bytes, 0 if all bytes are transferred or exit
- * is in same phase.
- *
- * Also, *phase, *count, *data are modified in place.
+/**
+ * NCR5380_transfer_pio() - transfers data in given phase using polled I/O
+ * @instance: instance of driver
+ * @phase: pointer to what phase is expected
+ * @count: pointer to number of bytes to transfer
+ * @data: pointer to data pointer
+ * @can_sleep: 1 or 0 when sleeping is permitted or not, respectively
  *
- * XXX Note : handling for bus free may be useful.
+ * Returns: void. *phase, *count, *data are modified in place.
  */
 
 /*
@@ -1254,9 +1243,9 @@ out:
  * counts, we will always do a pseudo DMA or DMA transfer.
  */
 
-static int NCR5380_transfer_pio(struct Scsi_Host *instance,
-				unsigned char *phase, int *count,
-				unsigned char **data, unsigned int can_sleep)
+static void NCR5380_transfer_pio(struct Scsi_Host *instance,
+				 unsigned char *phase, int *count,
+				 unsigned char **data, unsigned int can_sleep)
 {
 	struct NCR5380_hostdata *hostdata = shost_priv(instance);
 	unsigned char p = *phase, tmp;
@@ -1277,8 +1266,8 @@ static int NCR5380_transfer_pio(struct Scsi_Host *instance,
 		 * valid
 		 */
 
-		if (NCR5380_poll_politely(hostdata, STATUS_REG, SR_REQ, SR_REQ,
-					  HZ * can_sleep) < 0)
+		if (NCR5380_poll_politely(hostdata, STATUS_REG, SR_REQ | SR_BSY,
+					  SR_REQ | SR_BSY, HZ * can_sleep) < 0)
 			break;
 
 		dsprintk(NDEBUG_HANDSHAKE, instance, "REQ asserted\n");
@@ -1329,17 +1318,19 @@ static int NCR5380_transfer_pio(struct Scsi_Host *instance,
 
 		dsprintk(NDEBUG_HANDSHAKE, instance, "REQ negated, handshake complete\n");
 
-/*
- * We have several special cases to consider during REQ/ACK handshaking :
- * 1.  We were in MSGOUT phase, and we are on the last byte of the
- * message.  ATN must be dropped as ACK is dropped.
- *
- * 2.  We are in a MSGIN phase, and we are on the last byte of the
- * message.  We must exit with ACK asserted, so that the calling
- * code may raise ATN before dropping ACK to reject the message.
- *
- * 3.  ACK and ATN are clear and the target may proceed as normal.
- */
+		/*
+		 * We have several special cases to consider during REQ/ACK
+		 * handshaking:
+		 *
+		 * 1.  We were in MSGOUT phase, and we are on the last byte of
+		 * the message. ATN must be dropped as ACK is dropped.
+		 *
+		 * 2.  We are in MSGIN phase, and we are on the last byte of the
+		 * message. We must exit with ACK asserted, so that the calling
+		 * code may raise ATN before dropping ACK to reject the message.
+		 *
+		 * 3.  ACK and ATN are clear & the target may proceed as normal.
+		 */
 		if (!(p == PHASE_MSGIN && c == 1)) {
 			if (p == PHASE_MSGOUT && c > 1)
 				NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN);
@@ -1361,11 +1352,6 @@ static int NCR5380_transfer_pio(struct Scsi_Host *instance,
 		*phase = tmp & PHASE_MASK;
 	else
 		*phase = PHASE_UNKNOWN;
-
-	if (!c || (*phase == p))
-		return 0;
-	else
-		return -1;
 }
 
 /**
@@ -1485,6 +1471,7 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance,
 				unsigned char **data)
 {
 	struct NCR5380_hostdata *hostdata = shost_priv(instance);
+	struct NCR5380_cmd *ncmd = NCR5380_to_ncmd(hostdata->connected);
 	int c = *count;
 	unsigned char p = *phase;
 	unsigned char *d = *data;
@@ -1496,7 +1483,7 @@ stati