linux-kernel - Re: [PATCH v6 5/7] ASoC: fsl_asrc: Move common definition to fsl_asrc

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Date:   Sat, 11 Apr 2020 19:08:14 -0700
From:   Nicolin Chen <nicoleotsuka@...il.com>
To:     Shengjiu Wang <shengjiu.wang@...il.com>
Cc:     Shengjiu Wang <shengjiu.wang@....com>,
        Mark Rutland <mark.rutland@....com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        Timur Tabi <timur@...nel.org>, Xiubo Li <Xiubo.Lee@...il.com>,
        linuxppc-dev@...ts.ozlabs.org, Takashi Iwai <tiwai@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        Fabio Estevam <festevam@...il.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 5/7] ASoC: fsl_asrc: Move common definition to
 fsl_asrc_common

On Sat, Apr 11, 2020 at 01:49:43PM +0800, Shengjiu Wang wrote:

> > > diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
> > > index b15946e03380..5cf0468ce6e3 100644
> > > --- a/sound/soc/fsl/fsl_asrc_dma.c
> > > +++ b/sound/soc/fsl/fsl_asrc_dma.c
> >
> > > @@ -311,11 +311,12 @@ static int fsl_asrc_dma_startup(struct snd_soc_component *component,
> > >               return ret;
> > >       }
> > >
> > > -     pair = kzalloc(sizeof(struct fsl_asrc_pair), GFP_KERNEL);
> > > +     pair = kzalloc(sizeof(struct fsl_asrc_pair) + PAIR_PRIVAT_SIZE, GFP_KERNEL);
> >
> > If we only use the PAIR_PRIVATE_SIZE here, maybe we can put the
> > define in this file too, rather than in the header file.
> >
> > And could fit 80 characters:
> >
> > +       pair = kzalloc(sizeof(*pair) + PAIR_PRIVAT_SIZE, GFP_KERNEL);

> I will use a function pointer
>     int (*get_pair_priv_size)(void)

Since it's the size of pair or cts structure, could be just a
size_t variable?