linux-kernel - Re: [PATCH v2] dma-buf: move dma-buf symbols into the DMA

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Message-ID: <CAO_48GE9C_eOK84iYwvNjkGQRcFQQ8Hn-z70ndOhmF1gbmd5BQ@mail.gmail.com>
Date:   Mon, 25 Oct 2021 17:43:49 +0530
From:   Sumit Semwal <sumit.semwal@...aro.org>
To:     Christian König <christian.koenig@....com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alex Deucher <alexander.deucher@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        LKML <linux-kernel@...r.kernel.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        DRI mailing list <dri-devel@...ts.freedesktop.org>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v2] dma-buf: move dma-buf symbols into the DMA_BUF module namespace

Hi Greg,

On Mon, 25 Oct 2021 at 16:29, Christian König <christian.koenig@....com> wrote:
>
> Am 25.10.21 um 12:36 schrieb Greg Kroah-Hartman:
> > On Sun, Oct 10, 2021 at 02:46:28PM +0200, Greg Kroah-Hartman wrote:
> >> In order to better track where in the kernel the dma-buf code is used,
> >> put the symbols in the namespace DMA_BUF and modify all users of the
> >> symbols to properly import the namespace to not break the build at the
> >> same time.
> >>
> >> Now the output of modinfo shows the use of these symbols, making it
> >> easier to watch for users over time:
> >>
> >> $ modinfo drivers/misc/fastrpc.ko | grep import
> >> import_ns:      DMA_BUF
> >>
> >> Cc: "Pan, Xinhui" <Xinhui.Pan@....com>
> >> Cc: David Airlie <airlied@...ux.ie>
> >> Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
> >> Cc: Maxime Ripard <mripard@...nel.org>
> >> Cc: Thomas Zimmermann <tzimmermann@...e.de>
> >> Cc: Mauro Carvalho Chehab <mchehab@...nel.org>
> >> Cc: dri-devel@...ts.freedesktop.org
> >> Acked-by: Daniel Vetter <daniel.vetter@...ll.ch>
> >> Acked-by: Christian König <christian.koenig@....com>
> >> Acked-by: Arnd Bergmann <arnd@...db.de>
> >> Acked-by: Sumit Semwal <sumit.semwal@...aro.org>
> >> Acked-by: Alex Deucher <alexander.deucher@....com>
> >> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> >> ---
> >> v2: added lots of acks
> >>      added 2 more drivers that needed the change, as found by Arnd
> > Ping?  Any ideas on what needs to happen to get this into the tree?
> >
> > Or can I take it through my char-misc tree?  I seem to have a bunch of
> > acks on it by the respective maintainers...
>
> I could push that upstream through the drm-misc-next tree if you like,
> but honestly char-misc sounds like the better approach since this
> touches a lot of drivers outside of drm as well.

I agree with Christian here - char-misc might be a better way for this.

>
>
> Thanks,
> Christian.
>
> >
> > thanks,
> >
> > greg k-h
>

Best,
Sumit.