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authorAlan Stern <stern@rowland.harvard.edu>2014-06-30 11:04:21 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-06-30 22:47:18 -0700
commitb14bf2d0c0358140041d1c1805a674376964d0e0 (patch)
tree7548f59221b4f29f59f056ae717ede2732baf3cb /include/linux
parentba1ba3a4ed0c5c6a6121169abe61802aeab6c1d2 (diff)
usb-storage/SCSI: Add broken_fua blacklist flag
Some buggy JMicron USB-ATA bridges don't know how to translate the FUA bit in READs or WRITEs. This patch adds an entry in unusual_devs.h and a blacklist flag to tell the sd driver not to use FUA. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Michael Büsch <m@bues.ch> Tested-by: Michael Büsch <m@bues.ch> Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com> CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net> CC: <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/usb_usual.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index 1a64b26046ed..9b7de1b46437 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -70,7 +70,9 @@
US_FLAG(NEEDS_CAP16, 0x00400000) \
/* cannot handle READ_CAPACITY_10 */ \
US_FLAG(IGNORE_UAS, 0x00800000) \
- /* Device advertises UAS but it is broken */
+ /* Device advertises UAS but it is broken */ \
+ US_FLAG(BROKEN_FUA, 0x01000000) \
+ /* Cannot handle FUA in WRITE or READ CDBs */ \
#define US_FLAG(name, value) US_FL_##name = value ,
enum { US_DO_ALL_FLAGS };