[PATCH 3.2 16/46] USB: uas: Add a new NO_REPORT_LUNS quirk

Ben Hutchings
2016-06-12T21:35:55Z

From: Hans de Goede <hdegoede@redhat.com>

commit 1363074667a6b7d0507527742ccd7bbed5e3ceaa upstream.

Add a new NO_REPORT_LUNS quirk and set it for Seagate drives with
an usb-id of: 0bc2:331a, as these will fail to respond to a
REPORT_LUNS command.

Reported-and-tested-by: David Webb <djw@noc.ac.uk>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2:
- Adjust context
- Drop the UAS changes]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2699,6 +2699,8 @@ bytes respectively. Such letter suffixes
sector if the number is odd);
i = IGNORE_DEVICE (don't bind to this
device);
+ j = NO_REPORT_LUNS (don't use report luns
+ command, uas only);
l = NOT_LOCKABLE (don't try to lock and
unlock ejectable media);
m = MAX_SECTORS_64 (don't transfer more
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -453,7 +453,7 @@ static void adjust_quirks(struct us_data
US_FL_CAPACITY_OK | US_FL_IGNORE_RESIDUE |
US_FL_SINGLE_LUN | US_FL_NO_WP_DETECT |
US_FL_NO_READ_DISC_INFO | US_FL_NO_READ_CAPACITY_16 |
- US_FL_INITIAL_READ10);
+ US_FL_INITIAL_READ10 | US_FL_NO_REPORT_LUNS);

p = quirks;
while (*p) {
@@ -497,6 +497,9 @@ static void adjust_quirks(struct us_data
case 'i':
f |= US_FL_IGNORE_DEVICE;
break;
+ case 'j':
+ f |= US_FL_NO_REPORT_LUNS;
+ break;
case 'l':
f |= US_FL_NOT_LOCKABLE;
break;
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -67,6 +67,8 @@
/* Initial READ(10) (and others) must be retried */ \
US_FLAG(BROKEN_FUA, 0x01000000) \
/* Cannot handle FUA in WRITE or READ CDBs */ \
+ US_FLAG(NO_REPORT_LUNS, 0x10000000) \
+ /* Cannot handle REPORT_LUNS */ \

#define US_FLAG(name, value) US_FL_##name = value ,
enum { US_DO_ALL_FLAGS };