From: Tom Yan <tom.ty89@xxxxxxxxx>
Commit 198de51dbc34 ("USB: uas: Limit qdepth at the scsi-host level") made
qdepth limit set in host template (`.can_queue = MAX_CMNDS`) useless.
Instead of removing the template limit, now we only change limit according
to the qdepth reported by the device if it is smaller than MAX_CMNDS.
Signed-off-by: Tom Yan <tom.ty89@xxxxxxxxx>
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 4d49fce..d7790e6 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -972,7 +972,8 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id)
* 1 tag is reserved for untagged commands +
* 1 tag to avoid off by one errors in some bridge firmwares
*/
- shost->can_queue = devinfo->qdepth - 2;
+ if (devinfo->qdepth - 2 < MAX_CMNDS)
+ shost->can_queue = devinfo->qdepth - 2;
usb_set_intfdata(intf, shost);
result = scsi_add_host(shost, &intf->dev);
--
2.8.2
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