4.9-stable review patch. If anyone has any objections, please let me know.
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From: Damien Le Moal damien.lemoal@wdc.com
commit 6edf1d4cb0acde3a0a5dac849f33031bd7abb7b1 upstream.
If the ALL bit is set in the ZBC_OUT command, the command zone ID field (block) should be ignored.
Reported-by: David Butterfield david.butterfield@wdc.com Signed-off-by: Damien Le Moal damien.lemoal@wdc.com Cc: stable@vger.kernel.org Signed-off-by: Tejun Heo tj@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/ata/libata-scsi.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
--- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3772,7 +3772,14 @@ static unsigned int ata_scsi_zbc_out_xla */ goto invalid_param_len; } - if (block >= dev->n_sectors) { + + all = cdb[14] & 0x1; + if (all) { + /* + * Ignore the block address (zone ID) as defined by ZBC. + */ + block = 0; + } else if (block >= dev->n_sectors) { /* * Block must be a valid zone ID (a zone start LBA). */ @@ -3780,8 +3787,6 @@ static unsigned int ata_scsi_zbc_out_xla goto invalid_fld; }
- all = cdb[14] & 0x1; - if (ata_ncq_enabled(qc->dev) && ata_fpdma_zac_mgmt_out_supported(qc->dev)) { tf->protocol = ATA_PROT_NCQ_NODATA;