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

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On Tue, Aug 30, 2022 at 10:44 AM Leon Romanovsky <leon@xxxxxxxxxx> wrote:
>
> On Mon, Aug 29, 2022 at 03:43:43PM +0200, Jinpu Wang wrote:
> > 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
>
> I squashed this hunk into original patch.
>
Hi Leon,

Thank you!
> Thanks
>
> >
> > Thx!
> > >
> > > Thanks,
> > > Guoqing



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