diff options
| author | kevin Barnett <kevin.barnett@microsemi.com> | 2016-09-16 15:01:51 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-09-19 11:55:26 -0400 |
| commit | e018ef572ba4ff17caa9e82d5e1b5cea0d76f903 (patch) | |
| tree | 2e4d5e32414c967c4e44b5ec851434e8596f2344 /drivers/scsi | |
| parent | abbada7175999fbd6500b8144e985b779588962f (diff) | |
| download | linux-0-day-e018ef572ba4ff17caa9e82d5e1b5cea0d76f903.tar.gz linux-0-day-e018ef572ba4ff17caa9e82d5e1b5cea0d76f903.tar.xz | |
scsi: smartpqi: raid bypass lba calculation fix
In the ioaccel path, the calculation of the starting LBA for
READ(6)/WRITE(6) SCSI commands does not take into account the most
significant 5 bits of the LBA: it only uses the least significant 16
bits of the starting LBA.
Reported-by: Mahesh Rajashekhara <mahesh.rajashekhara@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/smartpqi/smartpqi_init.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 52cfa268ca957..a535b2661f383 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -1954,7 +1954,8 @@ static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, is_write = true; /* fall through */ case READ_6: - first_block = (u64)get_unaligned_be16(&scmd->cmnd[2]); + first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) | + (scmd->cmnd[2] << 8) | scmd->cmnd[3]); block_cnt = (u32)scmd->cmnd[4]; if (block_cnt == 0) block_cnt = 256; |