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linux-stable/drivers/scsi/libsas
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Damien Le Moal cfa4de4410 scsi: libsas: Fix sas_ata_qc_issue() handling of NCQ NON DATA commands 
commit 8454563e4c upstream.

To detect for the DMA_NONE (no data transfer) DMA direction,
sas_ata_qc_issue() tests if the command protocol is ATA_PROT_NODATA.  This
test does not include the ATA_CMD_NCQ_NON_DATA command as this command
protocol is defined as ATA_PROT_NCQ_NODATA (equal to ATA_PROT_FLAG_NCQ) and
not as ATA_PROT_NODATA.

To include both NCQ and non-NCQ commands when testing for the DMA_NONE DMA
direction, use "!ata_is_data()".

Link: https://lore.kernel.org/r/20220220031810.738362-2-damien.lemoal@opensource.wdc.com
Fixes: 176ddd8917 ("scsi: libsas: Reset num_scatter if libata marks qc as NODATA")
Cc: stable@vger.kernel.org
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2022-04-08 13:57:20 +02:00
..
Kconfig scsi: libsas: Drop BLK_DEV_BSGLIB selection 2021-07-27 00:06:42 -04:00
Makefile scsi: libsas: Allow libsas to include SCSI header files directly 2021-07-20 23:11:17 -04:00
sas_ata.c scsi: libsas: Fix sas_ata_qc_issue() handling of NCQ NON DATA commands 2022-04-08 13:57:20 +02:00
sas_discover.c scsi: Remove superfluous #include <linux/async.h> directives 2021-11-29 23:02:15 -05:00
sas_event.c scsi: libsas: Keep host active while processing events 2021-12-22 23:38:31 -05:00
sas_expander.c scsi: libsas: Resume host while sending SMP I/Os 2021-12-22 23:38:30 -05:00
sas_host_smp.c scsi: libsas: Allow libsas to include SCSI header files directly 2021-07-20 23:11:17 -04:00
sas_init.c scsi: libsas: Defer works of new phys during suspend 2021-12-22 23:38:30 -05:00
sas_internal.h scsi: libsas: Refactor sas_queue_deferred_work() 2021-12-22 23:38:30 -05:00
sas_phy.c scsi: libsas: Allow libsas to include SCSI header files directly 2021-07-20 23:11:17 -04:00
sas_port.c scsi: libsas: Allow libsas to include SCSI header files directly 2021-07-20 23:11:17 -04:00
sas_scsi_host.c scsi: libsas: Decode SAM status and host byte codes 2021-12-16 22:59:58 -05:00
sas_task.c scsi: libsas: Introduce more SAM status code aliases in enum exec_status 2021-06-02 16:10:46 -04:00