Commit c63c6287 authored by Icenowy Zheng's avatar Icenowy Zheng Committed by Stefan Bader

USB: storage: don't insert sane sense for SPC3+ when bad sense specified

BugLink: https://bugs.launchpad.net/bugs/1818237

commit c5603d2f upstream.

Currently the code will set US_FL_SANE_SENSE flag unconditionally if
device claims SPC3+, however we should allow US_FL_BAD_SENSE flag to
prevent this behavior, because SMI SM3350 UFS-USB bridge controller,
which claims SPC4, will show strange behavior with 96-byte sense
(put the chip into a wrong state that cannot read/write anything).

Check the presence of US_FL_BAD_SENSE when assuming US_FL_SANE_SENSE on
SPC4+ devices.
Signed-off-by: default avatarIcenowy Zheng <icenowy@aosc.io>
Cc: stable <stable@vger.kernel.org>
Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarJuerg Haefliger <juergh@canonical.com>
Signed-off-by: default avatarKhalid Elmously <khalid.elmously@canonical.com>
parent f5ba1044
......@@ -223,8 +223,12 @@ static int slave_configure(struct scsi_device *sdev)
if (!(us->fflags & US_FL_NEEDS_CAP16))
sdev->try_rc_10_first = 1;
/* assume SPC3 or latter devices support sense size > 18 */
if (sdev->scsi_level > SCSI_SPC_2)
/*
* assume SPC3 or latter devices support sense size > 18
* unless US_FL_BAD_SENSE quirk is specified.
*/
if (sdev->scsi_level > SCSI_SPC_2 &&
!(us->fflags & US_FL_BAD_SENSE))
us->fflags |= US_FL_SANE_SENSE;
/* USB-IDE bridges tend to report SK = 0x04 (Non-recoverable
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment