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Diffstat (limited to 'drivers/usb/storage/scsiglue.c')
-rw-r--r--drivers/usb/storage/scsiglue.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index 5715291ba540..a4b7df9ff8c1 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -112,13 +112,11 @@ static int slave_configure(struct scsi_device *sdev)
112 if (sdev->scsi_level < SCSI_2) 112 if (sdev->scsi_level < SCSI_2)
113 sdev->scsi_level = sdev->sdev_target->scsi_level = SCSI_2; 113 sdev->scsi_level = sdev->sdev_target->scsi_level = SCSI_2;
114 114
115 /* According to the technical support people at Genesys Logic, 115 /* Many devices have trouble transfering more than 32KB at a time,
116 * devices using their chips have problems transferring more than 116 * while others have trouble with more than 64K. At this time we
117 * 32 KB at a time. In practice people have found that 64 KB 117 * are limiting both to 32K (64 sectores).
118 * works okay and that's what Windows does. But we'll be 118 */
119 * conservative; people can always use the sysfs interface to 119 if ((us->flags & US_FL_MAX_SECTORS_64) &&
120 * increase max_sectors. */
121 if (le16_to_cpu(us->pusb_dev->descriptor.idVendor) == USB_VENDOR_ID_GENESYS &&
122 sdev->request_queue->max_sectors > 64) 120 sdev->request_queue->max_sectors > 64)
123 blk_queue_max_sectors(sdev->request_queue, 64); 121 blk_queue_max_sectors(sdev->request_queue, 64);
124 122