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path: root/drivers/usb/storage/scsiglue.c
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Diffstat (limited to 'drivers/usb/storage/scsiglue.c')
-rw-r--r--drivers/usb/storage/scsiglue.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index e9d6c19..8d78084 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -208,6 +208,14 @@ static int slave_configure(struct scsi_device *sdev)
* sector in a larger then 1 sector read, since the performance
* impact is negible we set this flag for all USB disks */
sdev->last_sector_bug = 1;
+
+ /* Enable last-sector hacks for single-target devices using
+ * the Bulk-only transport, unless we already know the
+ * capacity will be decremented or is correct. */
+ if (!(us->fflags & (US_FL_FIX_CAPACITY | US_FL_CAPACITY_OK |
+ US_FL_SCM_MULT_TARG)) &&
+ us->protocol == US_PR_BULK)
+ us->use_last_sector_hacks = 1;
} else {
/* Non-disk-type devices don't need to blacklist any pages