From: Hans de Goede <hdegoede@redhat.com>
Date: Tue, 21 Apr 2015 09:20:32 +0000 (+0200)
Subject: uas: Set max_sectors_240 quirk for ASM1053 devices
X-Git-Tag: v3.18.14~11
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d3dc2e86f7f760b15d0cc3207e99c2d8a63e4740;p=profile%2Fwearable%2Fplatform%2Fkernel%2Flinux-3.18-exynos7270.git

uas: Set max_sectors_240 quirk for ASM1053 devices

[ Upstream commit 8e779c6c4a398763c21371fe40f649206041dc1e ]

Testing has shown that ASM1053 devices do not work properly with transfers
larger than 240 sectors, so set max_sectors to 240 on these.

Cc: stable@vger.kernel.org # 3.16
Reported-by: Steve Bangert <sbangert@frontier.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Steve Bangert <sbangert@frontier.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
---

diff --git a/drivers/usb/storage/uas-detect.h b/drivers/usb/storage/uas-detect.h
index 856cc1f94a3..a451903a685 100644
--- a/drivers/usb/storage/uas-detect.h
+++ b/drivers/usb/storage/uas-detect.h
@@ -81,6 +81,9 @@ static int uas_use_uas_driver(struct usb_interface *intf,
 			flags |= US_FL_IGNORE_UAS;
 		} else if (usb_ss_max_streams(&eps[1]->ss_ep_comp) == 32) {
 			flags |= US_FL_IGNORE_UAS;
+		} else {
+			/* ASM1053, these have issues with large transfers */
+			flags |= US_FL_MAX_SECTORS_240;
 		}
 	}