Merge branch 'master'

35 files changed, 132 insertions, 124 deletions

diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index d40ba0bd68a3..23392ae7df8b 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -91,7 +91,7 @@
 #ifndef NDEBUG
 #define NDEBUG 0
 #endif
-#ifndef NDEBUG
+#ifndef NDEBUG_ABORT
 #define NDEBUG_ABORT 0
 #endif
 
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 4a99d2f000f4..d54b1cc88d0d 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -19,7 +19,7 @@
 #define AAC_MAX_LUN             (8)
 
 #define AAC_MAX_HOSTPHYSMEMPAGES (0xfffff)
-#define AAC_MAX_32BIT_SGBCOUNT  ((unsigned short)512)
+#define AAC_MAX_32BIT_SGBCOUNT  ((unsigned short)256)
 
 /*
  * These macros convert from physical channels to virtual channels
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index cfa22e4ee547..fe8187d6f58b 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -216,7 +216,7 @@ static Scsi_Host_Template ahci_sht = {
         .ordered_flush          = 1,
 };
 
-static struct ata_port_operations ahci_ops = {
+static const struct ata_port_operations ahci_ops = {
         .port_disable           = ata_port_disable,
 
         .check_status           = ahci_check_status,
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index d71cef767cec..be021478f416 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -147,7 +147,7 @@ static Scsi_Host_Template piix_sht = {
         .ordered_flush          = 1,
 };
 
-static struct ata_port_operations piix_pata_ops = {
+static const struct ata_port_operations piix_pata_ops = {
         .port_disable           = ata_port_disable,
         .set_piomode            = piix_set_piomode,
         .set_dmamode            = piix_set_dmamode,
@@ -177,7 +177,7 @@ static struct ata_port_operations piix_pata_ops = {
         .host_stop              = ata_host_stop,
 };
 
-static struct ata_port_operations piix_sata_ops = {
+static const struct ata_port_operations piix_sata_ops = {
         .port_disable           = ata_port_disable,
 
         .tf_load                = ata_tf_load,
diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c
index c10e45b94b62..3d13fdee4fc2 100644
--- a/drivers/scsi/eata.c
+++ b/drivers/scsi/eata.c
@@ -1357,7 +1357,7 @@ static int port_detect(unsigned long port_base, unsigned int j,
 
         for (i = 0; i < shost->can_queue; i++) {
                 size_t sz = shost->sg_tablesize *sizeof(struct sg_list);
-                unsigned int gfp_mask = (shost->unchecked_isa_dma ? GFP_DMA : 0) | GFP_ATOMIC;
+                gfp_t gfp_mask = (shost->unchecked_isa_dma ? GFP_DMA : 0) | GFP_ATOMIC;
                 ha->cp[i].sglist = kmalloc(sz, gfp_mask);
                 if (!ha->cp[i].sglist) {
                         printk
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 02fe371b0ab8..f24d84538fd5 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -287,7 +287,8 @@ static void scsi_host_dev_release(struct device *dev)
 struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
 {
         struct Scsi_Host *shost;
-        int gfp_mask = GFP_KERNEL, rval;
+        gfp_t gfp_mask = GFP_KERNEL;
+        int rval;
 
         if (sht->unchecked_isa_dma && privsize)
                 gfp_mask |= __GFP_DMA;
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 9269fd9b814f..f53d7b8ac33f 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -67,9 +67,9 @@ static void ata_dev_reread_id(struct ata_port *ap, struct ata_device *dev);
 static void ata_dev_init_params(struct ata_port *ap, struct ata_device *dev);
 static void ata_set_mode(struct ata_port *ap);
 static void ata_dev_set_xfermode(struct ata_port *ap, struct ata_device *dev);
-static unsigned int ata_get_mode_mask(struct ata_port *ap, int shift);
+static unsigned int ata_get_mode_mask(const struct ata_port *ap, int shift);
 static int fgb(u32 bitmap);
-static int ata_choose_xfer_mode(struct ata_port *ap,
+static int ata_choose_xfer_mode(const struct ata_port *ap,
                                 u8 *xfer_mode_out,
                                 unsigned int *xfer_shift_out);
 static void __ata_qc_complete(struct ata_queued_cmd *qc);
@@ -87,7 +87,7 @@ MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 
 /**
- *      ata_tf_load - send taskfile registers to host controller
+ *      ata_tf_load_pio - send taskfile registers to host controller
  *      @ap: Port to which output is sent
  *      @tf: ATA taskfile register set
  *
@@ -97,7 +97,7 @@ MODULE_VERSION(DRV_VERSION);
  *      Inherited from caller.
  */
 
-static void ata_tf_load_pio(struct ata_port *ap, struct ata_taskfile *tf)
+static void ata_tf_load_pio(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         struct ata_ioports *ioaddr = &ap->ioaddr;
         unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
@@ -155,7 +155,7 @@ static void ata_tf_load_pio(struct ata_port *ap, struct ata_taskfile *tf)
  *      Inherited from caller.
  */
 
-static void ata_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf)
+static void ata_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         struct ata_ioports *ioaddr = &ap->ioaddr;
         unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
@@ -224,7 +224,7 @@ static void ata_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf)
  *      LOCKING:
  *      Inherited from caller.
  */
-void ata_tf_load(struct ata_port *ap, struct ata_taskfile *tf)
+void ata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         if (ap->flags & ATA_FLAG_MMIO)
                 ata_tf_load_mmio(ap, tf);
@@ -244,7 +244,7 @@ void ata_tf_load(struct ata_port *ap, struct ata_taskfile *tf)
  *      spin_lock_irqsave(host_set lock)
  */
 
-static void ata_exec_command_pio(struct ata_port *ap, struct ata_taskfile *tf)
+static void ata_exec_command_pio(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         DPRINTK("ata%u: cmd 0x%X\n", ap->id, tf->command);
 
@@ -265,7 +265,7 @@ static void ata_exec_command_pio(struct ata_port *ap, struct ata_taskfile *tf)
  *      spin_lock_irqsave(host_set lock)
  */
 
-static void ata_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf)
+static void ata_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         DPRINTK("ata%u: cmd 0x%X\n", ap->id, tf->command);
 
@@ -285,7 +285,7 @@ static void ata_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf)
  *      LOCKING:
  *      spin_lock_irqsave(host_set lock)
  */
-void ata_exec_command(struct ata_port *ap, struct ata_taskfile *tf)
+void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         if (ap->flags & ATA_FLAG_MMIO)
                 ata_exec_command_mmio(ap, tf);
@@ -305,7 +305,7 @@ void ata_exec_command(struct ata_port *ap, struct ata_taskfile *tf)
  *      Obtains host_set lock.
  */
 
-static inline void ata_exec(struct ata_port *ap, struct ata_taskfile *tf)
+static inline void ata_exec(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         unsigned long flags;
 
@@ -328,7 +328,7 @@ static inline void ata_exec(struct ata_port *ap, struct ata_taskfile *tf)
  *      Obtains host_set lock.
  */
 
-static void ata_tf_to_host(struct ata_port *ap, struct ata_taskfile *tf)
+static void ata_tf_to_host(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         ap->ops->tf_load(ap, tf);
 
@@ -348,7 +348,7 @@ static void ata_tf_to_host(struct ata_port *ap, struct ata_taskfile *tf)
  *      spin_lock_irqsave(host_set lock)
  */
 
-void ata_tf_to_host_nolock(struct ata_port *ap, struct ata_taskfile *tf)
+void ata_tf_to_host_nolock(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         ap->ops->tf_load(ap, tf);
         ap->ops->exec_command(ap, tf);
@@ -558,7 +558,7 @@ u8 ata_chk_err(struct ata_port *ap)
  *      Inherited from caller.
  */
 
-void ata_tf_to_fis(struct ata_taskfile *tf, u8 *fis, u8 pmp)
+void ata_tf_to_fis(const struct ata_taskfile *tf, u8 *fis, u8 pmp)
 {
         fis[0] = 0x27;  /* Register - Host to Device FIS */
         fis[1] = (pmp & 0xf) | (1 << 7); /* Port multiplier number,
@@ -599,7 +599,7 @@ void ata_tf_to_fis(struct ata_taskfile *tf, u8 *fis, u8 pmp)
  *      Inherited from caller.
  */
 
-void ata_tf_from_fis(u8 *fis, struct ata_taskfile *tf)
+void ata_tf_from_fis(const u8 *fis, struct ata_taskfile *tf)
 {
         tf->command     = fis[2];       /* status */
         tf->feature     = fis[3];       /* error */
@@ -845,7 +845,7 @@ static unsigned int ata_devchk(struct ata_port *ap,
  *      the event of failure.
  */
 
-unsigned int ata_dev_classify(struct ata_taskfile *tf)
+unsigned int ata_dev_classify(const struct ata_taskfile *tf)
 {
         /* Apple's open source Darwin code hints that some devices only
          * put a proper signature into the LBA mid/high registers,
@@ -937,7 +937,7 @@ static u8 ata_dev_try_classify(struct ata_port *ap, unsigned int device)
  *      caller.
  */
 
-void ata_dev_id_string(u16 *id, unsigned char *s,
+void ata_dev_id_string(const u16 *id, unsigned char *s,
                        unsigned int ofs, unsigned int len)
 {
         unsigned int c;
@@ -1054,7 +1054,7 @@ void ata_dev_select(struct ata_port *ap, unsigned int device,
  *      caller.
  */
 
-static inline void ata_dump_id(struct ata_device *dev)
+static inline void ata_dump_id(const struct ata_device *dev)
 {
         DPRINTK("49==0x%04x  "
                 "53==0x%04x  "
@@ -1089,7 +1089,7 @@ static inline void ata_dump_id(struct ata_device *dev)
  *      FIXME: pre IDE drive timing (do we care ?). 
  */
 
-static unsigned int ata_pio_modes(struct ata_device *adev)
+static unsigned int ata_pio_modes(const struct ata_device *adev)
 {
         u16 modes;
 
@@ -1352,7 +1352,7 @@ err_out:
 }
 
 
-static inline u8 ata_dev_knobble(struct ata_port *ap)
+static inline u8 ata_dev_knobble(const struct ata_port *ap)
 {
         return ((ap->cbl == ATA_CBL_SATA) && (!ata_id_is_sata(ap->device->id)));
 }
@@ -1616,7 +1616,7 @@ static const struct ata_timing* ata_timing_find_mode(unsigned short speed)
         const struct ata_timing *t;
 
         for (t = ata_timing; t->mode != speed; t++)
-                if (t->mode != 0xFF)
+                if (t->mode == 0xFF)
                         return NULL;
         return t; 
 }
@@ -1684,7 +1684,7 @@ int ata_timing_compute(struct ata_device *adev, unsigned short speed,
         return 0;
 }
 
-static struct {
+static const struct {
         unsigned int shift;
         u8 base;
 } xfer_mode_classes[] = {
@@ -2093,7 +2093,8 @@ err_out:
         DPRINTK("EXIT\n");
 }
 
-static void ata_pr_blacklisted(struct ata_port *ap, struct ata_device *dev)
+static void ata_pr_blacklisted(const struct ata_port *ap,
+                               const struct ata_device *dev)
 {
         printk(KERN_WARNING "ata%u: dev %u is on DMA blacklist, disabling DMA\n",
                 ap->id, dev->devno);
@@ -2131,7 +2132,7 @@ static const char * ata_dma_blacklist [] = {
         "_NEC DV5800A",
 };
 
-static int ata_dma_blacklisted(struct ata_port *ap, struct ata_device *dev)
+static int ata_dma_blacklisted(const struct ata_device *dev)
 {
         unsigned char model_num[40];
         char *s;
@@ -2156,9 +2157,9 @@ static int ata_dma_blacklisted(struct ata_port *ap, struct ata_device *dev)
         return 0;
 }
 
-static unsigned int ata_get_mode_mask(struct ata_port *ap, int shift)
+static unsigned int ata_get_mode_mask(const struct ata_port *ap, int shift)
 {
-        struct ata_device *master, *slave;
+        const struct ata_device *master, *slave;
         unsigned int mask;
 
         master = &ap->device[0];
@@ -2170,14 +2171,14 @@ static unsigned int ata_get_mode_mask(struct ata_port *ap, int shift)
                 mask = ap->udma_mask;
                 if (ata_dev_present(master)) {
                         mask &= (master->id[ATA_ID_UDMA_MODES] & 0xff);
-                        if (ata_dma_blacklisted(ap, master)) {
+                        if (ata_dma_blacklisted(master)) {
                                 mask = 0;
                                 ata_pr_blacklisted(ap, master);
                         }
                 }
                 if (ata_dev_present(slave)) {
                         mask &= (slave->id[ATA_ID_UDMA_MODES] & 0xff);
-                        if (ata_dma_blacklisted(ap, slave)) {
+                        if (ata_dma_blacklisted(slave)) {
                                 mask = 0;
                                 ata_pr_blacklisted(ap, slave);
                         }
@@ -2187,14 +2188,14 @@ static unsigned int ata_get_mode_mask(struct ata_port *ap, int shift)
                 mask = ap->mwdma_mask;
                 if (ata_dev_present(master)) {
                         mask &= (master->id[ATA_ID_MWDMA_MODES] & 0x07);
-                        if (ata_dma_blacklisted(ap, master)) {
+                        if (ata_dma_blacklisted(master)) {
                                 mask = 0;
                                 ata_pr_blacklisted(ap, master);
                         }
                 }
                 if (ata_dev_present(slave)) {
                         mask &= (slave->id[ATA_ID_MWDMA_MODES] & 0x07);
-                        if (ata_dma_blacklisted(ap, slave)) {
+                        if (ata_dma_blacklisted(slave)) {
                                 mask = 0;
                                 ata_pr_blacklisted(ap, slave);
                         }
@@ -2258,7 +2259,7 @@ static int fgb(u32 bitmap)
  *      Zero on success, negative on error.
  */
 
-static int ata_choose_xfer_mode(struct ata_port *ap,
+static int ata_choose_xfer_mode(const struct ata_port *ap,
                                 u8 *xfer_mode_out,
                                 unsigned int *xfer_shift_out)
 {
@@ -2700,13 +2701,13 @@ void ata_poll_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
 
 /**
  *      ata_pio_poll -
- *      @ap:
+ *      @ap: the target ata_port
  *
  *      LOCKING:
  *      None.  (executing in kernel thread context)
  *
  *      RETURNS:
- *
+ *      timeout value to use
  */
 
 static unsigned long ata_pio_poll(struct ata_port *ap)
@@ -2747,8 +2748,8 @@ static unsigned long ata_pio_poll(struct ata_port *ap)
 }
 
 /**
- *      ata_pio_complete -
- *      @ap:
+ *      ata_pio_complete - check if drive is busy or idle
+ *      @ap: the target ata_port
  *
  *      LOCKING:
  *      None.  (executing in kernel thread context)
@@ -2800,7 +2801,7 @@ static int ata_pio_complete (struct ata_port *ap)
 
 
 /**
- *      swap_buf_le16 -
+ *      swap_buf_le16 - swap halves of 16-words in place
  *      @buf:  Buffer to swap
  *      @buf_words:  Number of 16-bit words in buffer.
  *
@@ -2809,6 +2810,7 @@ static int ata_pio_complete (struct ata_port *ap)
  *      vice-versa.
  *
  *      LOCKING:
+ *      Inherited from caller.
  */
 void swap_buf_le16(u16 *buf, unsigned int buf_words)
 {
@@ -2831,7 +2833,6 @@ void swap_buf_le16(u16 *buf, unsigned int buf_words)
  *
  *      LOCKING:
  *      Inherited from caller.
- *
  */
 
 static void ata_mmio_data_xfer(struct ata_port *ap, unsigned char *buf,
@@ -2877,7 +2878,6 @@ static void ata_mmio_data_xfer(struct ata_port *ap, unsigned char *buf,
  *
  *      LOCKING:
  *      Inherited from caller.
- *
  */
 
 static void ata_pio_data_xfer(struct ata_port *ap, unsigned char *buf,
@@ -2917,7 +2917,6 @@ static void ata_pio_data_xfer(struct ata_port *ap, unsigned char *buf,
  *
  *      LOCKING:
  *      Inherited from caller.
- *
  */
 
 static void ata_data_xfer(struct ata_port *ap, unsigned char *buf,
@@ -3070,7 +3069,6 @@ next_sg:
  *
  *      LOCKING:
  *      Inherited from caller.
- *
  */
 
 static void atapi_pio_bytes(struct ata_queued_cmd *qc)
@@ -3106,8 +3104,8 @@ err_out:
 }
 
 /**
- *      ata_pio_sector -
- *      @ap:
+ *      ata_pio_block - start PIO on a block
+ *      @ap: the target ata_port
  *
  *      LOCKING:
  *      None.  (executing in kernel thread context)
@@ -3119,7 +3117,7 @@ static void ata_pio_block(struct ata_port *ap)
         u8 status;
 
         /*
-         * This is purely hueristic.  This is a fast path.
+         * This is purely heuristic.  This is a fast path.
          * Sometimes when we enter, BSY will be cleared in
          * a chk-status or two.  If not, the drive is probably seeking
          * or something.  Snooze for a couple msecs, then
@@ -3439,7 +3437,6 @@ static void __ata_qc_complete(struct ata_queued_cmd *qc)
  *
  *      LOCKING:
  *      spin_lock_irqsave(host_set lock)
- *
  */
 void ata_qc_free(struct ata_queued_cmd *qc)
 {
@@ -3459,7 +3456,6 @@ void ata_qc_free(struct ata_queued_cmd *qc)
  *
  *      LOCKING:
  *      spin_lock_irqsave(host_set lock)
- *
  */
 
 void ata_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
@@ -3953,7 +3949,6 @@ idle_irq:
  *
  *      RETURNS:
  *      IRQ_NONE or IRQ_HANDLED.
- *
  */
 
 irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs)
@@ -4065,6 +4060,7 @@ err_out:
  *      May be used as the port_start() entry in ata_port_operations.
  *
  *      LOCKING:
+ *      Inherited from caller.
  */
 
 int ata_port_start (struct ata_port *ap)
@@ -4090,6 +4086,7 @@ int ata_port_start (struct ata_port *ap)
  *      May be used as the port_stop() entry in ata_port_operations.
  *
  *      LOCKING:
+ *      Inherited from caller.
  */
 
 void ata_port_stop (struct ata_port *ap)
@@ -4112,6 +4109,7 @@ void ata_host_stop (struct ata_host_set *host_set)
  *      @do_unregister: 1 if we fully unregister, 0 to just stop the port
  *
  *      LOCKING:
+ *      Inherited from caller.
  */
 
 static void ata_host_remove(struct ata_port *ap, unsigned int do_unregister)
@@ -4139,12 +4137,11 @@ static void ata_host_remove(struct ata_port *ap, unsigned int do_unregister)
  *
  *      LOCKING:
  *      Inherited from caller.
- *
  */
 
 static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
                           struct ata_host_set *host_set,
-                          struct ata_probe_ent *ent, unsigned int port_no)
+                          const struct ata_probe_ent *ent, unsigned int port_no)
 {
         unsigned int i;
 
@@ -4200,10 +4197,9 @@ static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
  *
  *      RETURNS:
  *      New ata_port on success, for NULL on error.
- *
  */
 
-static struct ata_port * ata_host_add(struct ata_probe_ent *ent,
+static struct ata_port * ata_host_add(const struct ata_probe_ent *ent,
                                       struct ata_host_set *host_set,
                                       unsigned int port_no)
 {
@@ -4248,10 +4244,9 @@ err_out:
  *
  *      RETURNS:
  *      Number of ports registered.  Zero on error (no ports registered).
- *
  */
 
-int ata_device_add(struct ata_probe_ent *ent)
+int ata_device_add(const struct ata_probe_ent *ent)
 {
         unsigned int count = 0, i;
         struct device *dev = ent->dev;
@@ -4380,7 +4375,6 @@ err_out:
  *      Inherited from calling layer (may sleep).
  */
 
-
 void ata_host_set_remove(struct ata_host_set *host_set)
 {
         struct ata_port *ap;
@@ -4470,7 +4464,7 @@ void ata_std_ports(struct ata_ioports *ioaddr)
 }
 
 static struct ata_probe_ent *
-ata_probe_ent_alloc(struct device *dev, struct ata_port_info *port)
+ata_probe_ent_alloc(struct device *dev, const struct ata_port_info *port)
 {
         struct ata_probe_ent *probe_ent;
 
@@ -4570,7 +4564,6 @@ static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev, stru
         if (!probe_ent)
                 return NULL;
 
-        
         probe_ent->legacy_mode = 1;
         probe_ent->n_ports = 1;
         probe_ent->hard_port_no = port_num;
@@ -4614,7 +4607,6 @@ static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev, stru
  *
  *      RETURNS:
  *      Zero on success, negative on errno-based value on error.
- *
  */
 
 int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
@@ -4762,7 +4754,7 @@ err_out:
  *      @pdev: PCI device that was removed
  *
  *      PCI layer indicates to libata via this hook that
- *      hot-unplug or module unload event has occured.
+ *      hot-unplug or module unload event has occurred.
  *      Handle this by unregistering all objects associated
  *      with this PCI device.  Free those objects.  Then finally
  *      release PCI resources and disable device.
@@ -4783,7 +4775,7 @@ void ata_pci_remove_one (struct pci_dev *pdev)
 }
 
 /* move to PCI subsystem */
-int pci_test_config_bits(struct pci_dev *pdev, struct pci_bits *bits)
+int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits)
 {
         unsigned long tmp = 0;
 
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 1ad75d58c30c..b761bd1b9717 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -47,9 +47,9 @@
 
 #define SECTOR_SIZE     512
 
-typedef unsigned int (*ata_xlat_func_t)(struct ata_queued_cmd *qc, u8 *scsicmd);
+typedef unsigned int (*ata_xlat_func_t)(struct ata_queued_cmd *qc, const u8 *scsicmd);
 static struct ata_device *
-ata_scsi_find_dev(struct ata_port *ap, struct scsi_device *scsidev);
+ata_scsi_find_dev(struct ata_port *ap, const struct scsi_device *scsidev);
 
 
 static void ata_scsi_invalid_field(struct scsi_cmnd *cmd,
@@ -710,7 +710,7 @@ int ata_scsi_error(struct Scsi_Host *host)
  */
 
 static unsigned int ata_scsi_start_stop_xlat(struct ata_queued_cmd *qc,
-                                             u8 *scsicmd)
+                                             const u8 *scsicmd)
 {
         struct ata_taskfile *tf = &qc->tf;
 
@@ -777,7 +777,7 @@ invalid_fld:
  *      Zero on success, non-zero on error.
  */
 
-static unsigned int ata_scsi_flush_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
+static unsigned int ata_scsi_flush_xlat(struct ata_queued_cmd *qc, const u8 *scsicmd)
 {
         struct ata_taskfile *tf = &qc->tf;
 
@@ -804,7 +804,7 @@ static unsigned int ata_scsi_flush_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
  *      @plen: the transfer length
  */
 
-static void scsi_6_lba_len(u8 *scsicmd, u64 *plba, u32 *plen)
+static void scsi_6_lba_len(const u8 *scsicmd, u64 *plba, u32 *plen)
 {
         u64 lba = 0;
         u32 len = 0;
@@ -831,7 +831,7 @@ static void scsi_6_lba_len(u8 *scsicmd, u64 *plba, u32 *plen)
  *      @plen: the transfer length
  */
 
-static void scsi_10_lba_len(u8 *scsicmd, u64 *plba, u32 *plen)
+static void scsi_10_lba_len(const u8 *scsicmd, u64 *plba, u32 *plen)
 {
         u64 lba = 0;
         u32 len = 0;
@@ -861,7 +861,7 @@ static void scsi_10_lba_len(u8 *scsicmd, u64 *plba, u32 *plen)
  *      @plen: the transfer length
  */
 
-static void scsi_16_lba_len(u8 *scsicmd, u64 *plba, u32 *plen)
+static void scsi_16_lba_len(const u8 *scsicmd, u64 *plba, u32 *plen)
 {
         u64 lba = 0;
         u32 len = 0;
@@ -900,7 +900,7 @@ static void scsi_16_lba_len(u8 *scsicmd, u64 *plba, u32 *plen)
  *      Zero on success, non-zero on error.
  */
 
-static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
+static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc, const u8 *scsicmd)
 {
         struct ata_taskfile *tf = &qc->tf;
         struct ata_device *dev = qc->dev;
@@ -1026,7 +1026,7 @@ nothing_to_do:
  *      Zero on success, non-zero on error.
  */
 
-static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
+static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicmd)
 {
         struct ata_taskfile *tf = &qc->tf;
         struct ata_device *dev = qc->dev;
@@ -2010,7 +2010,7 @@ static int atapi_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
  *      Zero on success, non-zero on failure.
  */
 
-static unsigned int atapi_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
+static unsigned int atapi_xlat(struct ata_queued_cmd *qc, const u8 *scsicmd)
 {
         struct scsi_cmnd *cmd = qc->scsicmd;
         struct ata_device *dev = qc->dev;
@@ -2079,7 +2079,7 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc, u8 *scsicmd)
  */
 
 static struct ata_device *
-ata_scsi_find_dev(struct ata_port *ap, struct scsi_device *scsidev)
+ata_scsi_find_dev(struct ata_port *ap, const struct scsi_device *scsidev)
 {
         struct ata_device *dev;
 
@@ -2378,7 +2378,7 @@ void ata_scsi_simulate(u16 *id,
                       void (*done)(struct scsi_cmnd *))
 {
         struct ata_scsi_args args;
-        u8 *scsicmd = cmd->cmnd;
+        const u8 *scsicmd = cmd->cmnd;
 
         args.id = id;
         args.cmd = cmd;
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index 39cce63dc45d..65c264b91136 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -48,7 +48,7 @@ extern int ata_qc_issue(struct ata_queued_cmd *qc);
 extern int ata_check_atapi_dma(struct ata_queued_cmd *qc);
 extern void ata_dev_select(struct ata_port *ap, unsigned int device,
                            unsigned int wait, unsigned int can_sleep);
-extern void ata_tf_to_host_nolock(struct ata_port *ap, struct ata_taskfile *tf);
+extern void ata_tf_to_host_nolock(struct ata_port *ap, const struct ata_taskfile *tf);
 extern void swap_buf_le16(u16 *buf, unsigned int buf_words);
 extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg);
 extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
diff --git a/drivers/scsi/lpfc/lpfc_mem.c b/drivers/scsi/lpfc/lpfc_mem.c
index 0aba13ceaacf..352df47bcaca 100644
--- a/drivers/scsi/lpfc/lpfc_mem.c
+++ b/drivers/scsi/lpfc/lpfc_mem.c
@@ -39,7 +39,7 @@
 #define LPFC_MEM_POOL_SIZE      64      /* max elem in non-DMA safety pool */
 
 static void *
-lpfc_pool_kmalloc(unsigned int gfp_flags, void *data)
+lpfc_pool_kmalloc(gfp_t gfp_flags, void *data)
 {
         return kmalloc((unsigned long)data, gfp_flags);
 }
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index 3f2f2464fa63..af1133104b3f 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -5146,7 +5146,8 @@ static long osst_compat_ioctl(struct file * file, unsigned int cmd_in, unsigned
 /* Try to allocate a new tape buffer skeleton. Caller must not hold os_scsi_tapes_lock */
 static struct osst_buffer * new_tape_buffer( int from_initialization, int need_dma, int max_sg )
 {
-        int i, priority;
+        int i;
+        gfp_t priority;
         struct osst_buffer *tb;
 
         if (from_initialization)
@@ -5178,7 +5179,8 @@ static struct osst_buffer * new_tape_buffer( int from_initialization, int need_d
 /* Try to allocate a temporary (while a user has the device open) enlarged tape buffer */
 static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma)
 {
-        int segs, nbr, max_segs, b_size, priority, order, got;
+        int segs, nbr, max_segs, b_size, order, got;
+        gfp_t priority;
 
         if (STbuffer->buffer_size >= OS_FRAME_SIZE)
                 return 1;
diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c
index 53b8db4be1a9..9820f272f889 100644
--- a/drivers/scsi/pdc_adma.c
+++ b/drivers/scsi/pdc_adma.c
@@ -158,7 +158,7 @@ static Scsi_Host_Template adma_ata_sht = {
         .bios_param             = ata_std_bios_param,
 };
 
-static struct ata_port_operations adma_ata_ops = {
+static const struct ata_port_operations adma_ata_ops = {
         .port_disable           = ata_port_disable,
         .tf_load                = ata_tf_load,
         .tf_read                = ata_tf_read,
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 1ed32e7b5472..e451941ad81d 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -52,7 +52,7 @@ extern int qla2x00_load_risc(struct scsi_qla_host *, uint32_t *);
 extern int qla24xx_load_risc_flash(scsi_qla_host_t *, uint32_t *);
 extern int qla24xx_load_risc_hotplug(scsi_qla_host_t *, uint32_t *);
 
-extern fc_port_t *qla2x00_alloc_fcport(scsi_qla_host_t *, int);
+extern fc_port_t *qla2x00_alloc_fcport(scsi_qla_host_t *, gfp_t);
 
 extern int qla2x00_loop_resync(scsi_qla_host_t *);
 
@@ -277,7 +277,7 @@ extern int qla2x00_fdmi_register(scsi_qla_host_t *);
 /*
  * Global Function Prototypes in qla_rscn.c source file.
  */
-extern fc_port_t *qla2x00_alloc_rscn_fcport(scsi_qla_host_t *, int);
+extern fc_port_t *qla2x00_alloc_rscn_fcport(scsi_qla_host_t *, gfp_t);
 extern int qla2x00_handle_port_rscn(scsi_qla_host_t *, uint32_t, fc_port_t *,
     int);
 extern void qla2x00_process_iodesc(scsi_qla_host_t *, struct mbx_entry *);
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 23d095d3817b..fbb6feee40cf 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1685,7 +1685,7 @@ qla2x00_nvram_config(scsi_qla_host_t *ha)
  * Returns a pointer to the allocated fcport, or NULL, if none available.
  */
 fc_port_t *
-qla2x00_alloc_fcport(scsi_qla_host_t *ha, int flags)
+qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
 {
         fc_port_t *fcport;
 
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 8982978c42fd..7aec93f9d423 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1325,6 +1325,8 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
         ha->brd_info = brd_info;
         sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no);
 
+        ha->dpc_pid = -1;
+
         /* Configure PCI I/O space */
         ret = qla2x00_iospace_config(ha);
         if (ret)
@@ -1448,7 +1450,6 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
          */
         spin_lock_init(&ha->mbx_reg_lock);
 
-        ha->dpc_pid = -1;
         init_completion(&ha->dpc_inited);
         init_completion(&ha->dpc_exited);
 
diff --git a/drivers/scsi/qla2xxx/qla_rscn.c b/drivers/scsi/qla2xxx/qla_rscn.c
index 1eba98828636..7534efcc8918 100644
--- a/drivers/scsi/qla2xxx/qla_rscn.c
+++ b/drivers/scsi/qla2xxx/qla_rscn.c
@@ -1066,7 +1066,7 @@ qla2x00_send_login_iocb_cb(scsi_qla_host_t *ha, struct io_descriptor *iodesc,
  * Returns a pointer to the allocated RSCN fcport, or NULL, if none available.
  */
 fc_port_t *
-qla2x00_alloc_rscn_fcport(scsi_qla_host_t *ha, int flags)
+qla2x00_alloc_rscn_fcport(scsi_qla_host_t *ha, gfp_t flags)
 {
         fc_port_t *fcport;
 
diff --git a/drivers/scsi/sata_mv.c b/drivers/scsi/sata_mv.c
index 9b6213928f7a..422e0b6f603a 100644
--- a/drivers/scsi/sata_mv.c
+++ b/drivers/scsi/sata_mv.c
@@ -290,7 +290,7 @@ static Scsi_Host_Template mv_sht = {
         .ordered_flush          = 1,
 };
 
-static struct ata_port_operations mv_ops = {
+static const struct ata_port_operations mv_ops = {
         .port_disable           = ata_port_disable,
 
         .tf_load                = ata_tf_load,
diff --git a/drivers/scsi/sata_nv.c b/drivers/scsi/sata_nv.c
index 8866530bc491..1a56d6c79ddd 100644
--- a/drivers/scsi/sata_nv.c
+++ b/drivers/scsi/sata_nv.c
@@ -238,7 +238,7 @@ static Scsi_Host_Template nv_sht = {
         .ordered_flush          = 1,
 };
 
-static struct ata_port_operations nv_ops = {
+static const struct ata_port_operations nv_ops = {
         .port_disable           = ata_port_disable,
         .tf_load                = ata_tf_load,
         .tf_read                = ata_tf_read,
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 9bf8cbd29901..eee93b0016df 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -87,8 +87,8 @@ static void pdc_port_stop(struct ata_port *ap);
 static void pdc_pata_phy_reset(struct ata_port *ap);
 static void pdc_sata_phy_reset(struct ata_port *ap);
 static void pdc_qc_prep(struct ata_queued_cmd *qc);
-static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf);
-static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf);
+static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
+static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
 static void pdc_irq_clear(struct ata_port *ap);
 static int pdc_qc_issue_prot(struct ata_queued_cmd *qc);
 
@@ -113,7 +113,7 @@ static Scsi_Host_Template pdc_ata_sht = {
         .ordered_flush          = 1,
 };
 
-static struct ata_port_operations pdc_sata_ops = {
+static const struct ata_port_operations pdc_sata_ops = {
         .port_disable           = ata_port_disable,
         .tf_load                = pdc_tf_load_mmio,
         .tf_read                = ata_tf_read,
@@ -136,7 +136,7 @@ static struct ata_port_operations pdc_sata_ops = {
         .host_stop              = ata_pci_host_stop,
 };
 
-static struct ata_port_operations pdc_pata_ops = {
+static const struct ata_port_operations pdc_pata_ops = {
         .port_disable           = ata_port_disable,
         .tf_load                = pdc_tf_load_mmio,
         .tf_read                = ata_tf_read,
@@ -546,7 +546,7 @@ static int pdc_qc_issue_prot(struct ata_queued_cmd *qc)
         return ata_qc_issue_prot(qc);
 }
 
-static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf)
+static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         WARN_ON (tf->protocol == ATA_PROT_DMA ||
                  tf->protocol == ATA_PROT_NODATA);
@@ -554,7 +554,7 @@ static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf)
 }
 
 
-static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf)
+static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         WARN_ON (tf->protocol == ATA_PROT_DMA ||
                  tf->protocol == ATA_PROT_NODATA);
diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c
index e1c1dae27c52..250dafa6bc36 100644
--- a/drivers/scsi/sata_qstor.c
+++ b/drivers/scsi/sata_qstor.c
@@ -147,7 +147,7 @@ static Scsi_Host_Template qs_ata_sht = {
         .bios_param             = ata_std_bios_param,
 };
 
-static struct ata_port_operations qs_ata_ops = {
+static const struct ata_port_operations qs_ata_ops = {
         .port_disable           = ata_port_disable,
         .tf_load                = ata_tf_load,
         .tf_read                = ata_tf_read,
diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c
index f6f0184e1ac8..3a056173fb95 100644
--- a/drivers/scsi/sata_sil.c
+++ b/drivers/scsi/sata_sil.c
@@ -150,7 +150,7 @@ static Scsi_Host_Template sil_sht = {
         .ordered_flush          = 1,
 };
 
-static struct ata_port_operations sil_ops = {
+static const struct ata_port_operations sil_ops = {
         .port_disable           = ata_port_disable,
         .dev_config             = sil_dev_config,
         .tf_load                = ata_tf_load,
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 19857814d69f..32d730bd5bb6 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -275,7 +275,7 @@ static Scsi_Host_Template sil24_sht = {
         .ordered_flush          = 1, /* NCQ not supported yet */
 };
 
-static struct ata_port_operations sil24_ops = {
+static const struct ata_port_operations sil24_ops = {
         .port_disable           = ata_port_disable,
 
         .check_status           = sil24_check_status,
diff --git a/drivers/scsi/sata_sis.c b/drivers/scsi/sata_sis.c
index 0761a3234fcf..057f7b98b6c4 100644
--- a/drivers/scsi/sata_sis.c
+++ b/drivers/scsi/sata_sis.c
@@ -102,7 +102,7 @@ static Scsi_Host_Template sis_sht = {
         .ordered_flush          = 1,
 };
 
-static struct ata_port_operations sis_ops = {
+static const struct ata_port_operations sis_ops = {
         .port_disable           = ata_port_disable,
         .tf_load                = ata_tf_load,
         .tf_read                = ata_tf_read,
diff --git a/drivers/scsi/sata_svw.c b/drivers/scsi/sata_svw.c
index d89d968bedac..e0f9570bc6dd 100644
--- a/drivers/scsi/sata_svw.c
+++ b/drivers/scsi/sata_svw.c
@@ -102,7 +102,7 @@ static void k2_sata_scr_write (struct ata_port *ap, unsigned int sc_reg,
 }
 
 
-static void k2_sata_tf_load(struct ata_port *ap, struct ata_taskfile *tf)
+static void k2_sata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         struct ata_ioports *ioaddr = &ap->ioaddr;
         unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
@@ -297,7 +297,7 @@ static Scsi_Host_Template k2_sata_sht = {
 };
 
 
-static struct ata_port_operations k2_sata_ops = {
+static const struct ata_port_operations k2_sata_ops = {
         .port_disable           = ata_port_disable,
         .tf_load                = k2_sata_tf_load,
         .tf_read                = k2_sata_tf_read,
diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c
index d6d350a0b5e9..af08f4f650c1 100644
--- a/drivers/scsi/sata_sx4.c
+++ b/drivers/scsi/sata_sx4.c
@@ -157,8 +157,8 @@ static void pdc_20621_phy_reset (struct ata_port *ap);
 static int pdc_port_start(struct ata_port *ap);
 static void pdc_port_stop(struct ata_port *ap);
 static void pdc20621_qc_prep(struct ata_queued_cmd *qc);
-static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf);
-static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf);
+static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
+static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
 static void pdc20621_host_stop(struct ata_host_set *host_set);
 static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe);
 static int pdc20621_detect_dimm(struct ata_probe_ent *pe);
@@ -196,7 +196,7 @@ static Scsi_Host_Template pdc_sata_sht = {
         .ordered_flush          = 1,
 };
 
-static struct ata_port_operations pdc_20621_ops = {
+static const struct ata_port_operations pdc_20621_ops = {
         .port_disable           = ata_port_disable,
         .tf_load                = pdc_tf_load_mmio,
         .tf_read                = ata_tf_read,
@@ -899,7 +899,7 @@ out:
         DPRINTK("EXIT\n");
 }
 
-static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf)
+static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         WARN_ON (tf->protocol == ATA_PROT_DMA ||
                  tf->protocol == ATA_PROT_NODATA);
@@ -907,7 +907,7 @@ static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf)
 }
 
 
-static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf)
+static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         WARN_ON (tf->protocol == ATA_PROT_DMA ||
                  tf->protocol == ATA_PROT_NODATA);
diff --git a/drivers/scsi/sata_uli.c b/drivers/scsi/sata_uli.c
index 9c06f2abe7f7..d68dc7d3422c 100644
--- a/drivers/scsi/sata_uli.c
+++ b/drivers/scsi/sata_uli.c
@@ -90,7 +90,7 @@ static Scsi_Host_Template uli_sht = {
         .ordered_flush          = 1,
 };
 
-static struct ata_port_operations uli_ops = {
+static const struct ata_port_operations uli_ops = {
         .port_disable           = ata_port_disable,
 
         .tf_load                = ata_tf_load,
diff --git a/drivers/scsi/sata_via.c b/drivers/scsi/sata_via.c
index 565872479b9a..80e291a909a9 100644
--- a/drivers/scsi/sata_via.c
+++ b/drivers/scsi/sata_via.c
@@ -109,7 +109,7 @@ static Scsi_Host_Template svia_sht = {
         .ordered_flush          = 1,
 };
 
-static struct ata_port_operations svia_sata_ops = {
+static const struct ata_port_operations svia_sata_ops = {
         .port_disable           = ata_port_disable,
 
         .tf_load                = ata_tf_load,
diff --git a/drivers/scsi/sata_vsc.c b/drivers/scsi/sata_vsc.c
index 877b9fda3965..5af05fdf8544 100644
--- a/drivers/scsi/sata_vsc.c
+++ b/drivers/scsi/sata_vsc.c
@@ -115,7 +115,7 @@ static void vsc_intr_mask_update(struct ata_port *ap, u8 ctl)
 }
 
 
-static void vsc_sata_tf_load(struct ata_port *ap, struct ata_taskfile *tf)
+static void vsc_sata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
 {
         struct ata_ioports *ioaddr = &ap->ioaddr;
         unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
@@ -231,7 +231,7 @@ static Scsi_Host_Template vsc_sata_sht = {
 };
 
 
-static struct ata_port_operations vsc_sata_ops = {
+static const struct ata_port_operations vsc_sata_ops = {
         .port_disable           = ata_port_disable,
         .tf_load                = vsc_sata_tf_load,
         .tf_read                = vsc_sata_tf_read,
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 1f0ebabf6d47..a5711d545d71 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -130,7 +130,7 @@ EXPORT_SYMBOL(scsi_device_types);
  * Returns:     Pointer to request block.
  */
 struct scsi_request *scsi_allocate_request(struct scsi_device *sdev,
-                                           int gfp_mask)
+                                           gfp_t gfp_mask)
 {
         const int offset = ALIGN(sizeof(struct scsi_request), 4);
         const int size = offset + sizeof(struct request);
@@ -196,7 +196,7 @@ struct scsi_host_cmd_pool {
         unsigned int    users;
         char            *name;
         unsigned int    slab_flags;
-        unsigned int    gfp_mask;
+        gfp_t           gfp_mask;
 };
 
 static struct scsi_host_cmd_pool scsi_cmd_pool = {
@@ -213,7 +213,7 @@ static struct scsi_host_cmd_pool scsi_cmd_dma_pool = {
 static DECLARE_MUTEX(host_cmd_pool_mutex);
 
 static struct scsi_cmnd *__scsi_get_command(struct Scsi_Host *shost,
-                                            int gfp_mask)
+                                            gfp_t gfp_mask)
 {
         struct scsi_cmnd *cmd;
 
@@ -245,7 +245,7 @@ static struct scsi_cmnd *__scsi_get_command(struct Scsi_Host *shost,
  *
  * Returns:     The allocated scsi command structure.
  */
-struct scsi_cmnd *scsi_get_command(struct scsi_device *dev, int gfp_mask)
+struct scsi_cmnd *scsi_get_command(struct scsi_device *dev, gfp_t gfp_mask)
 {
         struct scsi_cmnd *cmd;
 
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index 64fc9e21f35b..e69477d1889b 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -185,6 +185,7 @@ static struct {
         {"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
         {"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
         {"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
+        {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
         {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
         {"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN},
         {"SEAGATE", "ST34555N", "0930", BLIST_NOTQ},    /* Chokes on tagged INQUIRY */
diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c
index de7f98cc38fe..6a3f6aae8a97 100644
--- a/drivers/scsi/scsi_ioctl.c
+++ b/drivers/scsi/scsi_ioctl.c
@@ -205,7 +205,8 @@ int scsi_ioctl_send_command(struct scsi_device *sdev,
         unsigned int inlen, outlen, cmdlen;
         unsigned int needed, buf_needed;
         int timeout, retries, result;
-        int data_direction, gfp_mask = GFP_KERNEL;
+        int data_direction;
+        gfp_t gfp_mask = GFP_KERNEL;
 
         if (!sic)
                 return -EINVAL;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index dc9c772bc874..3ff538809786 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -97,7 +97,6 @@ int scsi_insert_special_req(struct scsi_request *sreq, int at_head)
 }
 
 static void scsi_run_queue(struct request_queue *q);
-static void scsi_release_buffers(struct scsi_cmnd *cmd);
 
 /*
  * Function:    scsi_unprep_request()
@@ -678,7 +677,7 @@ static struct scsi_cmnd *scsi_end_request(struct scsi_cmnd *cmd, int uptodate,
         return NULL;
 }
 
-static struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, int gfp_mask)
+static struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask)
 {
         struct scsi_host_sg_pool *sgp;
         struct scatterlist *sgl;
@@ -1040,8 +1039,10 @@ static int scsi_init_io(struct scsi_cmnd *cmd)
          * if sg table allocation fails, requeue request later.
          */
         sgpnt = scsi_alloc_sgtable(cmd, GFP_ATOMIC);
-        if (unlikely(!sgpnt))
+        if (unlikely(!sgpnt)) {
+                scsi_unprep_request(req);
                 return BLKPREP_DEFER;
+        }
 
         cmd->request_buffer = (char *) sgpnt;
         cmd->request_bufflen = req->nr_sectors << 9;
@@ -1245,8 +1246,8 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
                  */
                 ret = scsi_init_io(cmd);
                 switch(ret) {
+                        /* For BLKPREP_KILL/DEFER the cmd was released */
                 case BLKPREP_KILL:
-                        /* BLKPREP_KILL return also releases the command */
                         goto kill;
                 case BLKPREP_DEFER:
                         goto defer;
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 2cab556b6e82..771e97ef136e 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -819,12 +819,15 @@ show_fc_private_host_tgtid_bind_type(struct class_device *cdev, char *buf)
         return snprintf(buf, FC_BINDTYPE_MAX_NAMELEN, "%s\n", name);
 }
 
+#define get_list_head_entry(pos, head, member)          \
+        pos = list_entry((head)->next, typeof(*pos), member)
+
 static ssize_t
 store_fc_private_host_tgtid_bind_type(struct class_device *cdev,
         const char *buf, size_t count)
 {
         struct Scsi_Host *shost = transport_class_to_shost(cdev);
-        struct fc_rport *rport, *next_rport;
+        struct fc_rport *rport;
         enum fc_tgtid_binding_type val;
         unsigned long flags;
 
@@ -834,9 +837,13 @@ store_fc_private_host_tgtid_bind_type(struct class_device *cdev,
         /* if changing bind type, purge all unused consistent bindings */
         if (val != fc_host_tgtid_bind_type(shost)) {
                 spin_lock_irqsave(shost->host_lock, flags);
-                list_for_each_entry_safe(rport, next_rport,
-                                &fc_host_rport_bindings(shost), peers)
+                while (!list_empty(&fc_host_rport_bindings(shost))) {
+                        get_list_head_entry(rport,
+                                &fc_host_rport_bindings(shost), peers);
+                        spin_unlock_irqrestore(shost->host_lock, flags);
                         fc_rport_terminate(rport);
+                        spin_lock_irqsave(shost->host_lock, flags);
+                }
                 spin_unlock_irqrestore(shost->host_lock, flags);
         }
 
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index ad94367df430..fd56b7ec88b6 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -2644,7 +2644,7 @@ static char *
 sg_page_malloc(int rqSz, int lowDma, int *retSzp)
 {
         char *resp = NULL;
-        int page_mask;
+        gfp_t page_mask;
         int order, a_size;
         int resSz = rqSz;
 
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index d001c046551b..927d700f0073 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -3577,7 +3577,8 @@ static long st_compat_ioctl(struct file *file, unsigned int cmd, unsigned long a
 static struct st_buffer *
  new_tape_buffer(int from_initialization, int need_dma, int max_sg)
 {
-        int i, priority, got = 0, segs = 0;
+        int i, got = 0, segs = 0;
+        gfp_t priority;
         struct st_buffer *tb;
 
         if (from_initialization)
@@ -3610,7 +3611,8 @@ static struct st_buffer *
 /* Try to allocate enough space in the tape buffer */
 static int enlarge_buffer(struct st_buffer * STbuffer, int new_size, int need_dma)
 {
-        int segs, nbr, max_segs, b_size, priority, order, got;
+        int segs, nbr, max_segs, b_size, order, got;
+        gfp_t priority;
 
         if (new_size <= STbuffer->buffer_size)
                 return 1;