Merge ../linux-2.6

Conflicts:

	arch/ia64/hp/sim/simscsi.c

Stylistic differences in two separate fixes for buffer->request_buffer
problem.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

5 files changed, 56 insertions, 37 deletions

diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index 77e7202a0eba..904c25fb4ba4 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -940,14 +940,8 @@ static void ahci_host_intr(struct ata_port *ap)
                 return;
 
         /* ignore interim PIO setup fis interrupts */
-        if (ata_tag_valid(ap->active_tag)) {
-                struct ata_queued_cmd *qc =
-                        ata_qc_from_tag(ap, ap->active_tag);
-
-                if (qc && qc->tf.protocol == ATA_PROT_PIO &&
-                    (status & PORT_IRQ_PIOS_FIS))
-                        return;
-        }
+        if (ata_tag_valid(ap->active_tag) && (status & PORT_IRQ_PIOS_FIS)) 
+                return;
 
         if (ata_ratelimit())
                 ata_port_printk(ap, KERN_INFO, "spurious interrupt "
diff --git a/drivers/scsi/aic7xxx/aicasm/Makefile b/drivers/scsi/aic7xxx/aicasm/Makefile
index 8c91fda6482c..b98c5c1056c3 100644
--- a/drivers/scsi/aic7xxx/aicasm/Makefile
+++ b/drivers/scsi/aic7xxx/aicasm/Makefile
@@ -14,6 +14,8 @@ LIBS=	-ldb
 clean-files:= ${GENSRCS} ${GENHDRS} $(YSRCS:.y=.output) $(PROG)
 # Override default kernel CFLAGS.  This is a userland app.
 AICASM_CFLAGS:= -I/usr/include -I.
+LEX= flex
+YACC= bison
 YFLAGS= -d
 
 NOMAN=  noman
diff --git a/drivers/scsi/libata-eh.c b/drivers/scsi/libata-eh.c
index 4b6aa30f4d68..29f59345305d 100644
--- a/drivers/scsi/libata-eh.c
+++ b/drivers/scsi/libata-eh.c
@@ -764,12 +764,27 @@ static void ata_eh_about_to_do(struct ata_port *ap, struct ata_device *dev,
                                unsigned int action)
 {
         unsigned long flags;
+        struct ata_eh_info *ehi = &ap->eh_info;
+        struct ata_eh_context *ehc = &ap->eh_context;
 
         spin_lock_irqsave(ap->lock, flags);
 
-        ata_eh_clear_action(dev, &ap->eh_info, action);
+        /* Reset is represented by combination of actions and EHI
+         * flags.  Suck in all related bits before clearing eh_info to
+         * avoid losing requested action.
+         */
+        if (action & ATA_EH_RESET_MASK) {
+                ehc->i.action |= ehi->action & ATA_EH_RESET_MASK;
+                ehc->i.flags |= ehi->flags & ATA_EHI_RESET_MODIFIER_MASK;
+
+                /* make sure all reset actions are cleared & clear EHI flags */
+                action |= ATA_EH_RESET_MASK;
+                ehi->flags &= ~ATA_EHI_RESET_MODIFIER_MASK;
+        }
+
+        ata_eh_clear_action(dev, ehi, action);
 
-        if (!(ap->eh_context.i.flags & ATA_EHI_QUIET))
+        if (!(ehc->i.flags & ATA_EHI_QUIET))
                 ap->pflags |= ATA_PFLAG_RECOVERED;
 
         spin_unlock_irqrestore(ap->lock, flags);
@@ -790,6 +805,12 @@ static void ata_eh_about_to_do(struct ata_port *ap, struct ata_device *dev,
 static void ata_eh_done(struct ata_port *ap, struct ata_device *dev,
                         unsigned int action)
 {
+        /* if reset is complete, clear all reset actions & reset modifier */
+        if (action & ATA_EH_RESET_MASK) {
+                action |= ATA_EH_RESET_MASK;
+                ap->eh_context.i.flags &= ~ATA_EHI_RESET_MODIFIER_MASK;
+        }
+
         ata_eh_clear_action(dev, &ap->eh_context.i, action);
 }
 
@@ -1276,8 +1297,6 @@ static int ata_eh_speed_down(struct ata_device *dev, int is_io,
 static void ata_eh_autopsy(struct ata_port *ap)
 {
         struct ata_eh_context *ehc = &ap->eh_context;
-        unsigned int action = ehc->i.action;
-        struct ata_device *failed_dev = NULL;
         unsigned int all_err_mask = 0;
         int tag, is_io = 0;
         u32 serror;
@@ -1294,7 +1313,7 @@ static void ata_eh_autopsy(struct ata_port *ap)
                 ehc->i.serror |= serror;
                 ata_eh_analyze_serror(ap);
         } else if (rc != -EOPNOTSUPP)
-                action |= ATA_EH_HARDRESET;
+                ehc->i.action |= ATA_EH_HARDRESET;
 
         /* analyze NCQ failure */
         ata_eh_analyze_ncq_error(ap);
@@ -1315,7 +1334,7 @@ static void ata_eh_autopsy(struct ata_port *ap)
                 qc->err_mask |= ehc->i.err_mask;
 
                 /* analyze TF */
-                action |= ata_eh_analyze_tf(qc, &qc->result_tf);
+                ehc->i.action |= ata_eh_analyze_tf(qc, &qc->result_tf);
 
                 /* DEV errors are probably spurious in case of ATA_BUS error */
                 if (qc->err_mask & AC_ERR_ATA_BUS)
@@ -1329,11 +1348,11 @@ static void ata_eh_autopsy(struct ata_port *ap)
                 /* SENSE_VALID trumps dev/unknown error and revalidation */
                 if (qc->flags & ATA_QCFLAG_SENSE_VALID) {
                         qc->err_mask &= ~(AC_ERR_DEV | AC_ERR_OTHER);
-                        action &= ~ATA_EH_REVALIDATE;
+                        ehc->i.action &= ~ATA_EH_REVALIDATE;
                 }
 
                 /* accumulate error info */
-                failed_dev = qc->dev;
+                ehc->i.dev = qc->dev;
                 all_err_mask |= qc->err_mask;
                 if (qc->flags & ATA_QCFLAG_IO)
                         is_io = 1;
@@ -1342,25 +1361,22 @@ static void ata_eh_autopsy(struct ata_port *ap)
         /* enforce default EH actions */
         if (ap->pflags & ATA_PFLAG_FROZEN ||
             all_err_mask & (AC_ERR_HSM | AC_ERR_TIMEOUT))
-                action |= ATA_EH_SOFTRESET;
+                ehc->i.action |= ATA_EH_SOFTRESET;
         else if (all_err_mask)
-                action |= ATA_EH_REVALIDATE;
+                ehc->i.action |= ATA_EH_REVALIDATE;
 
         /* if we have offending qcs and the associated failed device */
-        if (failed_dev) {
+        if (ehc->i.dev) {
                 /* speed down */
-                action |= ata_eh_speed_down(failed_dev, is_io, all_err_mask);
+                ehc->i.action |= ata_eh_speed_down(ehc->i.dev, is_io,
+                                                   all_err_mask);
 
                 /* perform per-dev EH action only on the offending device */
-                ehc->i.dev_action[failed_dev->devno] |=
-                        action & ATA_EH_PERDEV_MASK;
-                action &= ~ATA_EH_PERDEV_MASK;
+                ehc->i.dev_action[ehc->i.dev->devno] |=
+                        ehc->i.action & ATA_EH_PERDEV_MASK;
+                ehc->i.action &= ~ATA_EH_PERDEV_MASK;
         }
 
-        /* record autopsy result */
-        ehc->i.dev = failed_dev;
-        ehc->i.action |= action;
-
         DPRINTK("EXIT\n");
 }
 
@@ -1483,6 +1499,9 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
         ata_reset_fn_t reset;
         int i, did_followup_srst, rc;
 
+        /* about to reset */
+        ata_eh_about_to_do(ap, NULL, ehc->i.action & ATA_EH_RESET_MASK);
+
         /* Determine which reset to use and record in ehc->i.action.
          * prereset() may examine and modify it.
          */
@@ -1531,8 +1550,7 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
                 ata_port_printk(ap, KERN_INFO, "%s resetting port\n",
                                 reset == softreset ? "soft" : "hard");
 
-        /* reset */
-        ata_eh_about_to_do(ap, NULL, ATA_EH_RESET_MASK);
+        /* mark that this EH session started with reset */
         ehc->i.flags |= ATA_EHI_DID_RESET;
 
         rc = ata_do_reset(ap, reset, classes);
@@ -1595,7 +1613,7 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
                         postreset(ap, classes);
 
                 /* reset successful, schedule revalidation */
-                ata_eh_done(ap, NULL, ATA_EH_RESET_MASK);
+                ata_eh_done(ap, NULL, ehc->i.action & ATA_EH_RESET_MASK);
                 ehc->i.action |= ATA_EH_REVALIDATE;
         }
 
@@ -1848,15 +1866,16 @@ static int ata_eh_skip_recovery(struct ata_port *ap)
         for (i = 0; i < ata_port_max_devices(ap); i++) {
                 struct ata_device *dev = &ap->device[i];
 
-                if (ata_dev_absent(dev) || ata_dev_ready(dev))
+                if (!(dev->flags & ATA_DFLAG_SUSPENDED))
                         break;
         }
 
         if (i == ata_port_max_devices(ap))
                 return 1;
 
-        /* always thaw frozen port and recover failed devices */
-        if (ap->pflags & ATA_PFLAG_FROZEN || ata_port_nr_enabled(ap))
+        /* thaw frozen port, resume link and recover failed devices */
+        if ((ap->pflags & ATA_PFLAG_FROZEN) ||
+            (ehc->i.flags & ATA_EHI_RESUME_LINK) || ata_port_nr_enabled(ap))
                 return 0;
 
         /* skip if class codes for all vacant slots are ATA_DEV_NONE */
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 64631bd38952..4776f4e55839 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -269,8 +269,15 @@ static const struct pci_device_id pdc_ata_pci_tbl[] = {
         { PCI_VENDOR_ID_PROMISE, 0x6629, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
           board_20619 },
 
+/* TODO: remove all associated board_20771 code, as it completely
+ * duplicates board_2037x code, unless reason for separation can be
+ * divined.
+ */
+#if 0
         { PCI_VENDOR_ID_PROMISE, 0x3570, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
           board_20771 },
+#endif
+
         { }     /* terminate list */
 };
 
diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c
index a89c4115cfba..32293f451669 100644
--- a/drivers/scsi/scsi_ioctl.c
+++ b/drivers/scsi/scsi_ioctl.c
@@ -110,11 +110,8 @@ static int ioctl_internal_command(struct scsi_device *sdev, char *cmd,
                                        sshdr.asc, sshdr.ascq);
                         break;
                 case NOT_READY: /* This happens if there is no disc in drive */
-                        if (sdev->removable && (cmd[0] != TEST_UNIT_READY)) {
-                                printk(KERN_INFO "Device not ready. Make sure"
-                                       " there is a disc in the drive.\n");
+                        if (sdev->removable)
                                 break;
-                        }
                 case UNIT_ATTENTION:
                         if (sdev->removable) {
                                 sdev->changed = 1;