From 43508be512661c905d0320ee73e0b65ef36d2459 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 25 Jul 2014 22:01:27 +0200 Subject: [PATCH] uas: Log a warning when we cannot use uas because the hcd lacks streams 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 Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/uas-detect.h | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/usb/storage/uas-detect.h b/drivers/usb/storage/uas-detect.h index 618b41791744..503ac5c8d80f 100644 --- a/drivers/usb/storage/uas-detect.h +++ b/drivers/usb/storage/uas-detect.h @@ -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; } -- 2.39.5