A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-07 04:12:04 -04:00
Code Issues Projects Releases Packages Wiki Activity

ata: libata-scsi: ignore reserved bits for REPORT SUPPORTED OPERATION CODES

Browse source 
commit 3ef600923521616ebe192c893468ad0424de2afb upstream.

For REPORT SUPPORTED OPERATION CODES command, the service action field is
defined as bits 0-4 in the second byte in the CDB. Bits 5-7 in the second
byte are reserved.

Only look at the service action field in the second byte when determining
if the MAINTENANCE IN opcode is a REPORT SUPPORTED OPERATION CODES command.

This matches how we only look at the service action field in the second
byte when determining if the SERVICE ACTION IN(16) opcode is a READ
CAPACITY(16) command (reserved bits 5-7 in the second byte are ignored).

Fixes: 7b20309428 ("libata: Add support for SCT Write Same")
Cc: stable@vger.kernel.org
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Niklas Cassel 2023-09-18 22:24:50 +02:00 • committed by Greg Kroah-Hartman
commit a4ecd8562c
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/ata/libata-scsi.c
View file

@ -4544,7 +4544,7 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
break;
case MAINTENANCE_IN:
if (scsicmd[1] == MI_REPORT_SUPPORTED_OPERATION_CODES)
if ((scsicmd[1] & 0x1f) == MI_REPORT_SUPPORTED_OPERATION_CODES)
ata_scsi_rbuf_fill(&args, ata_scsiop_maint_in);
else
ata_scsi_set_invalid_field(dev, cmd, 1, 0xff);