4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
[ Upstream commit e33d7c56450b0a5c7290cbf9e1581fab5174f552 ]
The scsi_debug driver incorrectly suggests there is an error with the
SCSI WRITE SAME command when the number_of_logical_blocks is greater
than 1. It will also suggest there is an error when NDOB
(no data-out buffer) is set and the number_of_logical_blocks is
greater than 0. Both are valid, fix.
Signed-off-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/scsi_debug.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -2996,11 +2996,11 @@ static int resp_write_same(struct scsi_c
if (-1 == ret) {
write_unlock_irqrestore(&atomic_rw, iflags);
return DID_ERROR << 16;
- } else if (sdebug_verbose && (ret < (num * sdebug_sector_size)))
+ } else if (sdebug_verbose && !ndob && (ret < sdebug_sector_size))
sdev_printk(KERN_INFO, scp->device,
- "%s: %s: cdb indicated=%u, IO sent=%d bytes\n",
+ "%s: %s: lb size=%u, IO sent=%d bytes\n",
my_name, "write same",
- num * sdebug_sector_size, ret);
+ sdebug_sector_size, ret);
/* Copy first sector to remaining blocks */
for (i = 1 ; i < num ; i++)