Re: [PATCH] target: Set additional sense length field in sense data

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On Tue, 2011-12-13 at 14:55 -0800, Roland Dreier wrote:
> From: Roland Dreier <roland@xxxxxxxxxxxxxxx>
> 
> The target code was not setting the additional sense length field in the
> sense data it returned, which meant that at least the Linux stack
> ignored the ASC/ASCQ fields.  For example, without this patch, on a
> tcm_loop device:
> 
>     # sg_raw -v /dev/sda 2 0 0 0 0 0
> 
> gives
> 
>         cdb to send: 02 00 00 00 00 00
>     SCSI Status: Check Condition
> 
>     Sense Information:
>      Fixed format, current;  Sense key: Illegal Request
>       Raw sense data (in hex):
>             70 00 05 00 00 00 00 00
> 
> while after the patch we correctly get the following (which matches what
> a regular disk returns):
> 
>         cdb to send: 02 00 00 00 00 00
>     SCSI Status: Check Condition
> 
>     Sense Information:
>      Fixed format, current;  Sense key: Illegal Request
>      Additional sense: Invalid command operation code
>      Raw sense data (in hex):
>             70 00 05 00 00 00 00 0a  00 00 00 00 20 00 00 00
>             00 00
> 
> Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
> ---
>  drivers/target/target_core_transport.c |   14 ++++++++++++++
>  include/target/target_core_base.h      |    1 +
>  2 files changed, 15 insertions(+), 0 deletions(-)
> 

Hi Roland,

My apologies for the delayed response here.  I've committed this bugfix
into lio-core/master and pushing into target-pending/for-next shortly
with a Cc to stable.

Thanks,

--nab

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