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由 Damien Le Moal 提交于
stable inclusion from stable-v5.10.110 commit aa28075f06b821a7988053cb9b77edc0c9ea4f0d bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=aa28075f06b821a7988053cb9b77edc0c9ea4f0d -------------------------------- commit 8454563e 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: 176ddd89 ("scsi: libsas: Reset num_scatter if libata marks qc as NODATA") Cc: stable@vger.kernel.org Reviewed-by: NJohn Garry <john.garry@huawei.com> Reviewed-by: NJack Wang <jinpu.wang@ionos.com> Signed-off-by: NDamien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NYu Liao <liaoyu15@huawei.com> Reviewed-by: NWei Li <liwei391@huawei.com> Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
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