Re: [PATCH] rnbd-srv: remove 'dir' argument from rnbd_srv_rdma_ev

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On Mon, Aug 29, 2022 at 3:33 PM Guoqing Jiang <guoqing.jiang@xxxxxxxxx> wrote:
>
>
>
> On 8/29/22 3:44 PM, Leon Romanovsky wrote:
> > On Fri, Aug 26, 2022 at 04:11:17PM +0800, Guoqing Jiang wrote:
> >> Since all callers (process_{read,write}) set id->dir, no need to
> >> pass 'dir' again.
> >>
> >> Signed-off-by: Guoqing Jiang <guoqing.jiang@xxxxxxxxx>
> >> ---
> >>   drivers/block/rnbd/rnbd-srv.c          | 9 ++++-----
> >>   drivers/block/rnbd/rnbd-srv.h          | 1 +
> >>   drivers/infiniband/ulp/rtrs/rtrs-srv.c | 4 ++--
> >>   drivers/infiniband/ulp/rtrs/rtrs.h     | 3 +--
> >>   4 files changed, 8 insertions(+), 9 deletions(-)
>
> > I applied the patch and cleanup of rtrs-srv.h can be done later.
>
> Thanks! I suppose below
>
> > So decouple it from rtrs-srv.h and hide everything that not-needed to be
> > exported to separate header file.
>
> means move 'struct rtrs_srv_op' to rtrs.h, which seems not appropriate to me
> because both client and server include the header. Pls correct me if I
> am wrong.
>
> Since process_{read,write} prints direction info if ctx->ops.rdma_ev
> fails, how
> about remove the 'dir' info from rnbd_srv_rdma_ev? Then we  don't need to
> include rtrs-srv.h.
>
> diff --git a/drivers/block/rnbd/rnbd-srv.c b/drivers/block/rnbd/rnbd-srv.c
> index 431c6da19d3f..d07ff3ba560c 100644
> --- a/drivers/block/rnbd/rnbd-srv.c
> +++ b/drivers/block/rnbd/rnbd-srv.c
> @@ -387,8 +387,8 @@ static int rnbd_srv_rdma_ev(void *priv, struct
> rtrs_srv_op *id,
>                                              datalen);
>                  break;
>          default:
> -               pr_warn("Received unexpected message type %d with dir %d
> from session %s\n",
> -                       type, id->dir, srv_sess->sessname);
> +               pr_warn("Received unexpected message type %d from
> session %s\n",
> +                       type, srv_sess->sessname);
>                  return -EINVAL;
>          }
>
> diff --git a/drivers/block/rnbd/rnbd-srv.h b/drivers/block/rnbd/rnbd-srv.h
> index 5a0ef6c2b5c7..081bceaf4ae9 100644
> --- a/drivers/block/rnbd/rnbd-srv.h
> +++ b/drivers/block/rnbd/rnbd-srv.h
> @@ -14,7 +14,6 @@
>   #include <linux/kref.h>
>
>   #include <rtrs.h>
> -#include <rtrs-srv.h>
>   #include "rnbd-proto.h"
>   #include "rnbd-log.h"
>
>
> Thoughts?
I like the idea. Please post a formal patch based on leon's
https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/log/?h=wip/leon-for-next

Thx!
>
> Thanks,
> Guoqing



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