linux-kernel - Re: [PATCH v2 1/5] i3c: master: detach and free device if pre_assign_dyn

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Date:   Tue, 3 Sep 2019 12:52:37 +0200
From:   Boris Brezillon <boris.brezillon@...labora.com>
To:     Vitor Soares <Vitor.Soares@...opsys.com>
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-i3c@...ts.infradead.org, bbrezillon@...nel.org,
        robh+dt@...nel.org, mark.rutland@....com, pgaj@...ence.com,
        Joao.Pinto@...opsys.com
Subject: Re: [PATCH v2 1/5] i3c: master: detach and free device if
 pre_assign_dyn_addr() fails

On Tue,  3 Sep 2019 12:35:50 +0200
Vitor Soares <Vitor.Soares@...opsys.com> wrote:

> On pre_assing_dyn_addr() the devices that fail:
>   i3c_master_setdasa_locked()
>   i3c_master_reattach_i3c_dev()
>   i3c_master_retrieve_dev_info()
> 
> are kept in memory and master->bus.devs list. This makes the i3c devices
> without a dynamic address are sent on DEFSLVS CCC command. Fix this by
> detaching and freeing the devices that fail on pre_assign_dyn_addr().
> 
> Signed-off-by: Vitor Soares <vitor.soares@...opsys.com>
> ---
> Changes in v2:
>   - Move out detach/free the i3c_dev_desc from pre_assign_dyn_addr()

So, you decided to ignore my comment about leaving the i3c_dev_desc
allocated and skipping entries that don't have a dynamic address when
forging the DEFSLVS frame instead of doing this
allocate/free/re-allocate dance, and more importantly, you didn't even
bother explaining why.

I'm not willing to accept this patch unless you come up with solid
reasons.