8 files changed, 14 insertions, 17 deletions

diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index c7f06298bd3c..4e0322b1c1ea 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -63,7 +63,7 @@ comment "SCSI support type (disk, tape, CD-ROM)"
 config BLK_DEV_SD
         tristate "SCSI disk support"
         depends on SCSI
-        select CRC_T10DIF
+        select CRC_T10DIF if BLK_DEV_INTEGRITY
         ---help---
           If you want to use SCSI hard disks, Fibre Channel disks,
           Serial ATA (SATA) or Parallel ATA (PATA) hard disks,
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 994da56fffed..708e475896b9 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -425,7 +425,7 @@ static int alua_check_sense(struct scsi_device *sdev,
                         /*
                          * LUN Not Accessible - ALUA state transition
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x0b)
                         /*
                          * LUN Not Accessible -- Target port in standby state
@@ -447,18 +447,18 @@ static int alua_check_sense(struct scsi_device *sdev,
                         /*
                          * Power On, Reset, or Bus Device Reset, just retry.
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x06) {
                         /*
                          * ALUA state changed
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 }
                 if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x07) {
                         /*
                          * Implicit ALUA state transition failed
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 }
                 break;
         }
@@ -490,7 +490,7 @@ static int alua_stpg(struct scsi_device *sdev, int state,
                 if (!err)
                         return SCSI_DH_IO;
                 err = alua_check_sense(sdev, &sense_hdr);
-                if (retry > 0 && err == NEEDS_RETRY) {
+                if (retry > 0 && err == ADD_TO_MLQUEUE) {
                         retry--;
                         goto retry;
                 }
@@ -535,7 +535,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
                         return SCSI_DH_IO;
 
                 err = alua_check_sense(sdev, &sense_hdr);
-                if (err == NEEDS_RETRY)
+                if (err == ADD_TO_MLQUEUE)
                         goto retry;
                 sdev_printk(KERN_INFO, sdev,
                             "%s: rtpg sense code %02x/%02x/%02x\n",
diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c
index b9d23e9e9a44..ef693e8412e9 100644
--- a/drivers/scsi/device_handler/scsi_dh_emc.c
+++ b/drivers/scsi/device_handler/scsi_dh_emc.c
@@ -439,7 +439,7 @@ static int clariion_check_sense(struct scsi_device *sdev,
                          * Unit Attention Code. This is the first IO
                          * to the new path, so just retry.
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 break;
         }
 
@@ -514,7 +514,7 @@ retry:
                         return SCSI_DH_IO;
 
                 err = clariion_check_sense(sdev, &sshdr);
-                if (retry > 0 && err == NEEDS_RETRY) {
+                if (retry > 0 && err == ADD_TO_MLQUEUE) {
                         retry--;
                         goto retry;
                 }
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index 2dee69da35cf..6e2f130d56de 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -551,7 +551,7 @@ static int rdac_check_sense(struct scsi_device *sdev,
                          *
                          * Just retry and wait.
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 break;
         case ILLEGAL_REQUEST:
                 if (sense_hdr->asc == 0x94 && sense_hdr->ascq == 0x01) {
@@ -568,7 +568,7 @@ static int rdac_check_sense(struct scsi_device *sdev,
                         /*
                          * Power On, Reset, or Bus Device Reset, just retry.
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 break;
         }
         /* success just means we do not care what scsi-ml does */
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 880051c89bde..39ce3aba1dac 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -391,7 +391,7 @@ static int scsi_check_sense(struct scsi_cmnd *scmd)
 
         case HARDWARE_ERROR:
                 if (scmd->device->retry_hwerror)
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 else
                         return SUCCESS;
 
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 84b4879cff11..34d0de6cd511 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -1080,7 +1080,8 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget,
          * PDT=1Fh none (no FDD connected to the requested logical unit)
          */
         if (((result[0] >> 5) == 1 || starget->pdt_1f_for_no_lun) &&
-             (result[0] & 0x1f) == 0x1f) {
+            (result[0] & 0x1f) == 0x1f &&
+            !scsi_is_wlun(lun)) {
                 SCSI_LOG_SCAN_BUS(3, printk(KERN_INFO
                                         "scsi scan: peripheral device type"
                                         " of 31, no device added\n"));
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 2a2bc89aba83..e5e7d7856454 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1875,7 +1875,6 @@ static int sd_probe(struct device *dev)
 
         dev_set_drvdata(dev, sdkp);
         add_disk(gd);
-        blk_register_filter(gd);
         sd_dif_config_host(sdkp);
 
         sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n",
@@ -1909,7 +1908,6 @@ static int sd_remove(struct device *dev)
         struct scsi_disk *sdkp = dev_get_drvdata(dev);
 
         device_del(&sdkp->dev);
-        blk_unregister_filter(sdkp->disk);
         del_gendisk(sdkp->disk);
         sd_shutdown(dev);
 
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 3292965bfd84..27f5bfd1def3 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -656,7 +656,6 @@ static int sr_probe(struct device *dev)
         dev_set_drvdata(dev, cd);
         disk->flags |= GENHD_FL_REMOVABLE;
         add_disk(disk);
-        blk_register_filter(disk);
 
         sdev_printk(KERN_DEBUG, sdev,
                     "Attached scsi CD-ROM %s\n", cd->cdi.name);
@@ -895,7 +894,6 @@ static int sr_remove(struct device *dev)
 {
         struct scsi_cd *cd = dev_get_drvdata(dev);
 
-        blk_unregister_filter(cd->disk);
         del_gendisk(cd->disk);
 
         mutex_lock(&sr_ref_mutex);