linux-kernel - Re: [PATCH] blk-mq: export blk_mq_submit

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Message-ID: <36660d33-c02d-27ee-1332-4ea6e7126b88@kernel.dk>
Date:   Wed, 22 Sep 2021 08:29:28 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Prasad Muppana <Lalita.Muppana@...rosoft.com>,
        Chaitanya Kulkarni <chaitanyak@...dia.com>,
        Praveen Kumar <kumarpraveen@...ux.microsoft.com>,
        Christoph Hellwig <hch@...radead.org>,
        Atin Mukherjee <Atin.MUKHERJEE@...rosoft.com>
Cc:     "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "schakrabarti@...ux.microsoft.com" <schakrabarti@...ux.microsoft.com>
Subject: Re: [PATCH] blk-mq: export blk_mq_submit_bio symbol

On 9/21/21 11:45 PM, Prasad Muppana wrote:
> Hi Chaitanya,
> 
> Thanks for the response.
> 
> Our driver code is not yet public and so Praveen has explained the
> flow of the code. Please let me know is there any other way to get
> some help here quickly.

The explanation, while appreciated, doesn't solve the problem here. We
_never_ add any exports for APIs that don't have any in-kernel users.
That's a hard rule that we've had forever. As such, there is not a path
for entry for this particular patch right now. It should be submitted
alongside the upstream submission request for the code using it, as a
preparatory patch.

-- 
Jens Axboe