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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 /drivers/usb/storage | |
| 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 'drivers/usb/storage')
| -rw-r--r-- | drivers/usb/storage/scsiglue.c | 4 | ||||
| -rw-r--r-- | drivers/usb/storage/unusual_devs.h | 7 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index eb660bb..b8dc0c5 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -255,6 +255,10 @@ static int slave_configure(struct scsi_device *sdev) US_FL_SCM_MULT_TARG)) && us->protocol == USB_PR_BULK) us->use_last_sector_hacks = 1; + + /* A few buggy USB-ATA bridges don't understand FUA */ + if (us->fflags & US_FL_BROKEN_FUA) + sdev->broken_fua = 1; } else { /* Non-disk-type devices don't need to blacklist any pages diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 49d222d..e588a11 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1916,6 +1916,13 @@ UNUSUAL_DEV( 0x14cd, 0x6600, 0x0201, 0x0201, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), +/* Reported by Michael Büsch <m@bues.ch> */ +UNUSUAL_DEV( 0x152d, 0x0567, 0x0114, 0x0114, + "JMicron", + "USB to ATA/ATAPI Bridge", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_BROKEN_FUA ), + /* Reported by Alexandre Oliva <oliva@lsd.ic.unicamp.br> * JMicron responds to USN and several other SCSI ioctls with a * residue that causes subsequent I/O requests to fail. */ |