linux-kernel - Re: [PATCH v3 02/16] scsi: don't use fc_bsg_job::request and fc_bsg

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Message-Id: <ebc46cfa-0bee-aa71-ba0b-d7c86628df0c@linux.vnet.ibm.com>
Date:   Thu, 13 Oct 2016 17:55:11 +0200
From:   Steffen Maier <maier@...ux.vnet.ibm.com>
To:     Johannes Thumshirn <jthumshirn@...e.de>,
        "Martin K . Petersen" <martin.petersen@...cle.com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Hannes Reinecke <hare@...e.de>,
        Linux Kernel Mailinglist <linux-kernel@...r.kernel.org>,
        Linux SCSI Mailinglist <linux-scsi@...r.kernel.org>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Anil Gurumurthy <anil.gurumurthy@...gic.com>,
        Sudarsana Kalluru <sudarsana.kalluru@...gic.com>,
        "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        Tyrel Datwyler <tyreld@...ux.vnet.ibm.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Johannes Thumshirn <jth@...nel.org>,
        James Smart <james.smart@...gotech.com>,
        Dick Kennedy <dick.kennedy@...gotech.com>,
        "supporter:QLOGIC QLA2XXX FC-SCSI DRIVER" 
        <qla2xxx-upstream@...gic.com>,
        "open list:S390 ZFCP DRIVER" <linux-s390@...r.kernel.org>,
        "open list:LINUX FOR POWERPC (32-BIT AND 64-BIT)" 
        <linuxppc-dev@...ts.ozlabs.org>,
        "open list:FCOE SUBSYSTEM (libfc, libfcoe, fcoe)" 
        <fcoe-devel@...n-fcoe.org>
Subject: Re: [PATCH v3 02/16] scsi: don't use fc_bsg_job::request and
 fc_bsg_job::reply directly

Hm, still behaves for me like I reported for v2:
http://marc.info/?l=linux-scsi&m=147637177902937&w=2

On 10/13/2016 05:00 PM, Johannes Thumshirn wrote:
> Don't use fc_bsg_job::request and fc_bsg_job::reply directly, but use
> helper variables bsg_request and bsg_reply. This will be helpfull  when
> transitioning to bsg-lib.
>
> Signed-off-by: Johannes Thumshirn <jthumshirn@...e.de>
> Reviewed-by: Hannes Reinecke <hare@...e.com>
> ---
>  drivers/s390/scsi/zfcp_fc.c      |   9 +-
>  drivers/scsi/bfa/bfad_bsg.c      |  40 +++---
>  drivers/scsi/ibmvscsi/ibmvfc.c   |  22 ++--
>  drivers/scsi/libfc/fc_lport.c    |  23 ++--
>  drivers/scsi/lpfc/lpfc_bsg.c     | 194 +++++++++++++++++-----------
>  drivers/scsi/qla2xxx/qla_bsg.c   | 264 ++++++++++++++++++++++-----------------
>  drivers/scsi/qla2xxx/qla_iocb.c  |   5 +-
>  drivers/scsi/qla2xxx/qla_isr.c   |  46 ++++---
>  drivers/scsi/qla2xxx/qla_mr.c    |  10 +-
>  drivers/scsi/scsi_transport_fc.c |  37 +++---
>  10 files changed, 387 insertions(+), 263 deletions(-)

> diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
> index 8ff2067..eafc7555 100644
> --- a/drivers/scsi/scsi_transport_fc.c
> +++ b/drivers/scsi/scsi_transport_fc.c

> @@ -3973,8 +3981,9 @@ enum fc_dispatch_result {
>  		/* check if we have the msgcode value at least */
>  		if (job->request_len < sizeof(uint32_t)) {
>  			BUG_ON(job->reply_len < sizeof(uint32_t));
> -			job->reply->reply_payload_rcv_len = 0;
> -			job->reply->result = -ENOMSG;
> +			bsg_reply = job->reply;
> +			bsg_reply->reply_payload_rcv_len = 0;
> +			bsg_reply->result = -ENOMSG;
>  			job->reply_len = sizeof(uint32_t);
>  			fc_bsg_jobdone(job);
>  			spin_lock_irq(q->queue_lock);
>

-- 
Mit freundlichen Grüßen / Kind regards
Steffen Maier

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