netdev - Re: [PATCH rdma-next v2 0/5] Get rid of custom made module dependency

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Message-ID: <CANjDDBiuw_VNepewLAtYE58Eg2JEsvGbpxttWyjV6DYMQdY5Zw@mail.gmail.com>
Date:   Sat, 3 Apr 2021 15:52:13 +0530
From:   Devesh Sharma <devesh.sharma@...adcom.com>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Leon Romanovsky <leonro@...dia.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        linux-rdma <linux-rdma@...r.kernel.org>,
        Michael Chan <michael.chan@...adcom.com>,
        Naresh Kumar PBS <nareshkumar.pbs@...adcom.com>,
        Netdev <netdev@...r.kernel.org>,
        Selvin Xavier <selvin.xavier@...adcom.com>,
        Somnath Kotur <somnath.kotur@...adcom.com>,
        Sriharsha Basavapatna <sriharsha.basavapatna@...adcom.com>
Subject: Re: [PATCH rdma-next v2 0/5] Get rid of custom made module dependency

On Thu, Apr 1, 2021 at 12:27 PM Leon Romanovsky <leon@...nel.org> wrote:
>
> From: Leon Romanovsky <leonro@...dia.com>
>
> Changelog:
> v2:
>  * kbuild spotted that I didn't delete all code in patch #5, so deleted
>    even more ulp_ops derefences.
> v1: https://lore.kernel.org/linux-rdma/20210329085212.257771-1-leon@kernel.org
>  * Go much deeper and removed useless ULP indirection
> v0: https://lore.kernel.org/linux-rdma/20210324142524.1135319-1-leon@kernel.org
> -----------------------------------------------------------------------
>
> The following series fixes issue spotted in [1], where bnxt_re driver
> messed with module reference counting in order to implement symbol
> dependency of bnxt_re and bnxt modules. All of this is done, when in
> upstream we have only one ULP user of that bnxt module. The simple
> declaration of exported symbol would do the trick.
>
> This series removes that custom module_get/_put, which is not supposed
> to be in the driver from the beginning and get rid of nasty indirection
> logic that isn't relevant for the upstream code.
>
> Such small changes allow us to simplify the bnxt code and my hope that
> Devesh will continue where I stopped and remove struct bnxt_ulp_ops too.
>
> Thanks
>
> [1] https://lore.kernel.org/linux-rdma/20210324142524.1135319-1-leon@kernel.org
>
> Leon Romanovsky (5):
>   RDMA/bnxt_re: Depend on bnxt ethernet driver and not blindly select it
>   RDMA/bnxt_re: Create direct symbolic link between bnxt modules
>   RDMA/bnxt_re: Get rid of custom module reference counting
>   net/bnxt: Remove useless check of non-existent ULP id
>   net/bnxt: Use direct API instead of useless indirection
>
>  drivers/infiniband/hw/bnxt_re/Kconfig         |   4 +-
>  drivers/infiniband/hw/bnxt_re/main.c          |  93 ++-----
>  drivers/net/ethernet/broadcom/bnxt/bnxt.c     |   4 +-
>  drivers/net/ethernet/broadcom/bnxt/bnxt.h     |   1 -
>  drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 245 +++++++-----------
>  drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h |  32 +--
>  6 files changed, 119 insertions(+), 260 deletions(-)

Hi Leon,

After a couple of internal discussions we reached a conclusion to
implement the Auxbus driver interface and fix the problem once and for
all.
>
> --
> 2.30.2
>


-- 
-Regards
Devesh

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