7 files changed, 36 insertions, 0 deletions

diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index a967fadb7439..08060fb478b6 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -87,6 +87,7 @@ MODULE_AUTHOR("Willem Riede");
 MODULE_DESCRIPTION("OnStream {DI-|FW-|SC-|USB}{30|50} Tape Driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_CHARDEV_MAJOR(OSST_MAJOR);
+MODULE_ALIAS_SCSI_DEVICE(TYPE_TAPE);
 
 module_param(max_dev, int, 0444);
 MODULE_PARM_DESC(max_dev, "Maximum number of OnStream Tape Drives to attach (4)");
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 96db51c40ef3..5326f5cbeae9 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -276,6 +276,19 @@ static int scsi_bus_match(struct device *dev, struct device_driver *gendrv)
         return (sdp->inq_periph_qual == SCSI_INQ_PQ_CON)? 1: 0;
 }
 
+static int scsi_bus_uevent(struct device *dev, char **envp, int num_envp,
+                           char *buffer, int buffer_size)
+{
+        struct scsi_device *sdev = to_scsi_device(dev);
+        int i = 0;
+        int length = 0;
+
+        add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
+                       "MODALIAS=" SCSI_DEVICE_MODALIAS_FMT, sdev->type);
+        envp[i] = NULL;
+        return 0;
+}
+
 static int scsi_bus_suspend(struct device * dev, pm_message_t state)
 {
         struct device_driver *drv = dev->driver;
@@ -331,6 +344,7 @@ static int scsi_bus_resume(struct device * dev)
 struct bus_type scsi_bus_type = {
         .name           = "scsi",
         .match          = scsi_bus_match,
+        .uevent         = scsi_bus_uevent,
         .suspend        = scsi_bus_suspend,
         .resume         = scsi_bus_resume,
 };
@@ -558,6 +572,14 @@ show_sdev_iostat(iorequest_cnt);
 show_sdev_iostat(iodone_cnt);
 show_sdev_iostat(ioerr_cnt);
 
+static ssize_t
+sdev_show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
+{
+        struct scsi_device *sdev;
+        sdev = to_scsi_device(dev);
+        return snprintf (buf, 20, SCSI_DEVICE_MODALIAS_FMT "\n", sdev->type);
+}
+static DEVICE_ATTR(modalias, S_IRUGO, sdev_show_modalias, NULL);
 
 /* Default template for device attributes.  May NOT be modified */
 static struct device_attribute *scsi_sysfs_sdev_attrs[] = {
@@ -577,6 +599,7 @@ static struct device_attribute *scsi_sysfs_sdev_attrs[] = {
         &dev_attr_iorequest_cnt,
         &dev_attr_iodone_cnt,
         &dev_attr_ioerr_cnt,
+        &dev_attr_modalias,
         NULL
 };
 
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index b044dcf73427..00e46662296f 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -82,6 +82,9 @@ MODULE_ALIAS_BLOCKDEV_MAJOR(SCSI_DISK12_MAJOR);
 MODULE_ALIAS_BLOCKDEV_MAJOR(SCSI_DISK13_MAJOR);
 MODULE_ALIAS_BLOCKDEV_MAJOR(SCSI_DISK14_MAJOR);
 MODULE_ALIAS_BLOCKDEV_MAJOR(SCSI_DISK15_MAJOR);
+MODULE_ALIAS_SCSI_DEVICE(TYPE_DISK);
+MODULE_ALIAS_SCSI_DEVICE(TYPE_MOD);
+MODULE_ALIAS_SCSI_DEVICE(TYPE_RBC);
 
 static DEFINE_IDR(sd_index_idr);
 static DEFINE_SPINLOCK(sd_index_lock);
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 1857d68e7195..f9a52af7f5b4 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -62,6 +62,8 @@
 MODULE_DESCRIPTION("SCSI cdrom (sr) driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_BLOCKDEV_MAJOR(SCSI_CDROM_MAJOR);
+MODULE_ALIAS_SCSI_DEVICE(TYPE_ROM);
+MODULE_ALIAS_SCSI_DEVICE(TYPE_WORM);
 
 #define SR_DISKS        256
 
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 98d8411bbccc..55bfeccf68a2 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -89,6 +89,7 @@ MODULE_AUTHOR("Kai Makisara");
 MODULE_DESCRIPTION("SCSI tape (st) driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_CHARDEV_MAJOR(SCSI_TAPE_MAJOR);
+MODULE_ALIAS_SCSI_DEVICE(TYPE_TAPE);
 
 /* Set 'perm' (4th argument) to 0 to disable module_param's definition
  * of sysfs parameters (which module_param doesn't yet support).
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 5c0e9791441c..9f8f80ab0c8b 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -203,6 +203,7 @@ static inline int scsi_status_is_good(int status)
 
 /*
  *  DEVICE TYPES
+ *  Please keep them in 0x%02x format for $MODALIAS to work
  */
 
 #define TYPE_DISK           0x00
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index b05cd3b09e6e..2f3c5b8b1d6a 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -358,4 +358,9 @@ static inline int scsi_device_qas(struct scsi_device *sdev)
                 return 0;
         return sdev->inquiry[56] & 0x02;
 }
+
+#define MODULE_ALIAS_SCSI_DEVICE(type) \
+        MODULE_ALIAS("scsi:t-" __stringify(type) "*")
+#define SCSI_DEVICE_MODALIAS_FMT "scsi:t-0x%02x"
+
 #endif /* _SCSI_SCSI_DEVICE_H */