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| author | Alan Stern <stern@rowland.harvard.edu> | 2014-06-30 11:04:21 -0400 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-08-06 18:07:33 +0100 |
| commit | 27bbd86f9319dbeeb588b8f43fe0ac241ad336ba (patch) | |
| tree | 6dff44ce290fbdca04f458b836cb97ab03b54cdf /include/scsi | |
| parent | 949ff4d69cf2497e9a0b1302979818cd944af02b (diff) | |
| download | kernel_samsung_smdk4412-27bbd86f9319dbeeb588b8f43fe0ac241ad336ba.zip kernel_samsung_smdk4412-27bbd86f9319dbeeb588b8f43fe0ac241ad336ba.tar.gz kernel_samsung_smdk4412-27bbd86f9319dbeeb588b8f43fe0ac241ad336ba.tar.bz2 | |
usb-storage/SCSI: Add broken_fua blacklist flag
commit b14bf2d0c0358140041d1c1805a674376964d0e0 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2:
- Adjust context
- Use sd_printk() not sd_first_printk()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_device.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 3152cc3..377ba61 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -151,6 +151,7 @@ struct scsi_device { unsigned no_read_disc_info:1; /* Avoid READ_DISC_INFO cmds */ unsigned no_read_capacity_16:1; /* Avoid READ_CAPACITY_16 cmds */ unsigned is_visible:1; /* is the device visible in sysfs */ + unsigned broken_fua:1; /* Don't set FUA bit */ DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */ struct list_head event_list; /* asserted events */ |