diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2012-06-22 10:52:34 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-16 09:04:37 -0700 |
| commit | 76c6b958de9e72947ef08b1c9509f094c34abd8f (patch) | |
| tree | 2d6c6f2f668b3a846cb25904e7845e576e1486f2 /include/scsi | |
| parent | 5a89aae8085ef69a2ea9034ff8f5624327cd4efc (diff) | |
SCSI: libsas: fix taskfile corruption in sas_ata_qc_fill_rtf
commit 6ef1b512f4e6f936d89aa20be3d97a7ec7c290ac upstream.
fill_result_tf() grabs the taskfile flags from the originating qc which
sas_ata_qc_fill_rtf() promptly overwrites. The presence of an
ata_taskfile in the sata_device makes it tempting to just copy the full
contents in sas_ata_qc_fill_rtf(). However, libata really only wants
the fis contents and expects the other portions of the taskfile to not
be touched by ->qc_fill_rtf. To that end store a fis buffer in the
sata_device and use ata_tf_from_fis() like every other ->qc_fill_rtf()
implementation.
Reported-by: Praveen Murali <pmurali@logicube.com>
Tested-by: Praveen Murali <pmurali@logicube.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/libsas.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index f4f1c96dca7..10ce74f589c 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -163,6 +163,8 @@ enum ata_command_set { ATAPI_COMMAND_SET = 1, }; +#define ATA_RESP_FIS_SIZE 24 + struct sata_device { enum ata_command_set command_set; struct smp_resp rps_resp; /* report_phy_sata_resp */ @@ -171,7 +173,7 @@ struct sata_device { struct ata_port *ap; struct ata_host ata_host; - struct ata_taskfile tf; + u8 fis[ATA_RESP_FIS_SIZE]; }; enum { @@ -537,7 +539,7 @@ enum exec_status { */ struct ata_task_resp { u16 frame_len; - u8 ending_fis[24]; /* dev to host or data-in */ + u8 ending_fis[ATA_RESP_FIS_SIZE]; /* dev to host or data-in */ }; #define SAS_STATUS_BUF_SIZE 96 |