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uas: Log a warning when we cannot use uas because the hcd lacks streams

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So that an user who wants to use uas can see why he is not getting uas.

Also move the check down so that we don't warn if there are other reasons
why uas cannot work.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hans de Goede 2014-07-25 22:01:27 +02:00 committed by Greg Kroah-Hartman
parent cc4deafc86
commit 43508be512
1 changed files with 9 additions and 3 deletions
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12
drivers/usb/storage/uas-detect.h
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@ -64,9 +64,6 @@ static int uas_use_uas_driver(struct usb_interface *intf,
if (flags & US_FL_IGNORE_UAS)
return 0;
if (udev->speed >= USB_SPEED_SUPER && !hcd->can_do_streams)
return 0;
alt = uas_find_uas_alt_setting(intf);
if (alt < 0)
return 0;
@ -84,5 +81,14 @@ static int uas_use_uas_driver(struct usb_interface *intf,
return 0;
}
if (udev->speed >= USB_SPEED_SUPER && !hcd->can_do_streams) {
dev_warn(&udev->dev,
"USB controller %s does not support streams, which are required by the UAS driver.\n",
hcd_to_bus(hcd)->bus_name);
dev_warn(&udev->dev,
"Please try an other USB controller if you wish to use UAS.\n");
return 0;
}
return 1;
}