Replying to the mailing-list as well.

ACK

On Sunday 29 July 2007 09:46, FUJITA Tomonori wrote:
> The patch is only compile tested.
> 
> ---
> From: FUJITA Tomonori <[EMAIL PROTECTED]>
> Subject: [PATCH] zfcp: convert to use the data buffer accessors
> 
> - remove the unnecessary map_single path.
> 
> - convert to use the new accessors for the sg lists and the
> parameters.
> 
> Signed-off-by: FUJITA Tomonori <[EMAIL PROTECTED]>
> ---
>  drivers/s390/scsi/zfcp_fsf.c  |    5 +++--
>  drivers/s390/scsi/zfcp_qdio.c |   41 
> ++++++-----------------------------------
>  2 files changed, 9 insertions(+), 37 deletions(-)
> 
> diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
> index b240800..9929997 100644
> --- a/drivers/s390/scsi/zfcp_fsf.c
> +++ b/drivers/s390/scsi/zfcp_fsf.c
> @@ -4154,8 +4154,9 @@ zfcp_fsf_send_fcp_command_task_handler(struct 
> zfcp_fsf_req *fsf_req)
>                             fcp_rsp_iu->fcp_resid,
>                             (int) zfcp_get_fcp_dl(fcp_cmnd_iu));
> 
> -             scpnt->resid = fcp_rsp_iu->fcp_resid;
> -             if (scpnt->request_bufflen - scpnt->resid < scpnt->underflow)
> +             scsi_set_resid(scpnt, fcp_rsp_iu->fcp_resid);
> +             if (scsi_bufflen(scpnt) - scsi_get_resid(scpnt) <
> +                 scpnt->underflow)
>                       set_host_byte(&scpnt->result, DID_ERROR);
>       }
> 
> diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
> index c408bad..81daa82 100644
> --- a/drivers/s390/scsi/zfcp_qdio.c
> +++ b/drivers/s390/scsi/zfcp_qdio.c
> @@ -36,8 +36,6 @@ static void zfcp_qdio_sbale_fill
>       (struct zfcp_fsf_req *, unsigned long, void *, int);
>  static int zfcp_qdio_sbals_from_segment
>       (struct zfcp_fsf_req *, unsigned long, void *, unsigned long);
> -static int zfcp_qdio_sbals_from_buffer
> -     (struct zfcp_fsf_req *, unsigned long, void *, unsigned long, int);
> 
>  static qdio_handler_t zfcp_qdio_request_handler;
>  static qdio_handler_t zfcp_qdio_response_handler;
> @@ -632,28 +630,6 @@ out:
> 
> 
>  /**
> - * zfcp_qdio_sbals_from_buffer - fill SBALs from buffer
> - * @fsf_req: request to be processed
> - * @sbtype: SBALE flags
> - * @buffer: data buffer
> - * @length: length of buffer
> - * @max_sbals: upper bound for number of SBALs to be used
> - */
> -static int
> -zfcp_qdio_sbals_from_buffer(struct zfcp_fsf_req *fsf_req, unsigned long 
> sbtype,
> -                         void *buffer, unsigned long length, int max_sbals)
> -{
> -     struct scatterlist sg_segment;
> -
> -     zfcp_address_to_sg(buffer, &sg_segment);
> -     sg_segment.length = length;
> -
> -     return zfcp_qdio_sbals_from_sg(fsf_req, sbtype, &sg_segment, 1,
> -                                       max_sbals);
> -}
> -
> -
> -/**
>   * zfcp_qdio_sbals_from_scsicmnd - fill SBALs from scsi command
>   * @fsf_req: request to be processed
>   * @sbtype: SBALE flags
> @@ -664,18 +640,13 @@ int
>  zfcp_qdio_sbals_from_scsicmnd(struct zfcp_fsf_req *fsf_req,
>                             unsigned long sbtype, struct scsi_cmnd *scsi_cmnd)
>  {
> -     if (scsi_cmnd->use_sg) {
> +     if (scsi_sg_count(scsi_cmnd))
>               return zfcp_qdio_sbals_from_sg(fsf_req, sbtype,
> -                                               (struct scatterlist *)
> -                                               scsi_cmnd->request_buffer,
> -                                               scsi_cmnd->use_sg,
> -                                               ZFCP_MAX_SBALS_PER_REQ);
> -     } else {
> -                return zfcp_qdio_sbals_from_buffer(fsf_req, sbtype,
> -                                                   scsi_cmnd->request_buffer,
> -                                                   
> scsi_cmnd->request_bufflen,
> -                                                   ZFCP_MAX_SBALS_PER_REQ);
> -     }
> +                                            scsi_sglist(scsi_cmnd),
> +                                            scsi_sg_count(scsi_cmnd),
> +                                            ZFCP_MAX_SBALS_PER_REQ);
> +     else
> +             return 0;
>  }
> 
>  /**
-
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