This is a note to let you know that I've just added the patch titled

scsi: scsi_debug: write_same: fix error report

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: scsi-scsi_debug-write_same-fix-error-report.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Mon Dec 18 13:28:59 CET 2017

From: Douglas Gilbert dgilbert@interlog.com Date: Sun, 29 Oct 2017 10:47:19 -0400 Subject: scsi: scsi_debug: write_same: fix error report

From: Douglas Gilbert dgilbert@interlog.com

[ 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@interlog.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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 @@ -3001,11 +3001,11 @@ 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++)

Patches currently in stable-queue which might be from dgilbert@interlog.com are

queue-4.14/scsi-scsi_debug-write_same-fix-error-report.patch