linux-kernel - Re: [PATCH v2 2/3] iommu/sound: Use component_match_add

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Message-ID: <20230103161550.4tui3ihl65olvkd7@houat>
Date:   Tue, 3 Jan 2023 17:15:50 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     Robin Murphy <robin.murphy@....com>
Cc:     Sean Anderson <sean.anderson@...o.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Joerg Roedel <joro@...tes.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Takashi Iwai <tiwai@...e.com>, Will Deacon <will@...nel.org>,
        Yong Wu <yong.wu@...iatek.com>, alsa-devel@...a-project.org,
        iommu@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v2 2/3] iommu/sound: Use component_match_add_of helper

Hi Robin,

On Tue, Jan 03, 2023 at 01:01:07PM +0000, Robin Murphy wrote:
> Hi Sean,
> 
> On 22/12/2022 11:37 pm, Sean Anderson wrote:
> > Convert users of component_match_add_release with component_release_of
> > and component_compare_of to component_match_add_of.
> > 
> > Signed-off-by: Sean Anderson <sean.anderson@...o.com>
> > Acked-by: Mark Brown <broonie@...nel.org>
> > ---
> > 
> > Changes in v2:
> > - Split off from helper addition
> > 
> >   drivers/iommu/mtk_iommu.c    | 3 +--
> >   drivers/iommu/mtk_iommu_v1.c | 3 +--
> >   sound/soc/codecs/wcd938x.c   | 6 ++----
> >   3 files changed, 4 insertions(+), 8 deletions(-)
> > 
> > diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
> > index 2ab2ecfe01f8..483b7a9e4410 100644
> > --- a/drivers/iommu/mtk_iommu.c
> > +++ b/drivers/iommu/mtk_iommu.c
> > @@ -1079,8 +1079,7 @@ static int mtk_iommu_mm_dts_parse(struct device *dev, struct component_match **m
> >   		}
> >   		data->larb_imu[id].dev = &plarbdev->dev;
> > -		component_match_add_release(dev, match, component_release_of,
> > -					    component_compare_of, larbnode);
> > +		component_match_add_of(dev, match, larbnode);
> 
> I've long since given up trying to make sense of how the DRM tree works, but
> the conflicting change is definitely already in mainline:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=b5765a1b44bea9dfcae69c53ffeb4c689d0922a7

As far as I can see, that patch doesn't affect DRM at all, and the
commit you pointed to doesn't either, nor has it been merged through the
DRM tree.

Can you expand a bit on how we're involved in this, what we should
clarify or help with?

Maxime

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