On Thu, Dec 13, 2018 at 02:07:42PM +0900, Kuninori Morimoto wrote:
>
> Hi Nathan
>
> > sound/soc/generic/simple-card.c:462:6: warning: argument to 'sizeof' in
> > 'memcpy' call is the same pointer type 'struct asoc_simple_dai *' as the
> > source; expected 'struct asoc_simple_dai' or an explicit length
> > [-Wsizeof-pointer-memaccess]
> > sizeof(priv->dai_props->cpu_dai));
> > ^~~~
> > sound/soc/generic/simple-card.c:464:6: warning: argument to 'sizeof' in
> > 'memcpy' call is the same pointer type 'struct asoc_simple_dai *' as the
> > source; expected 'struct asoc_simple_dai' or an explicit length
> > [-Wsizeof-pointer-memaccess]
> > sizeof(priv->dai_props->codec_dai));
> > ^~
> > 2 warnings generated.
> >
> > Commit 4fb7f4df49d3 ("ASoC: simple-card: use cpu/codec pointer on
> > simple_dai_props") updated {cpu,codec}_dai to be pointers in struct
> > simple_dai_props but didn't update these locations to dereference the
> > pointers to get the proper size of their contents.
> >
> > Signed-off-by: Nathan Chancellor
> > ---
> > sound/soc/generic/simple-card.c | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/sound/soc/generic/simple-card.c
> > b/sound/soc/generic/simple-card.c
> > index 766123485d7c..d4738d3eb2f1 100644
> > --- a/sound/soc/generic/simple-card.c
> > +++ b/sound/soc/generic/simple-card.c
> > @@ -459,9 +459,9 @@ static int asoc_simple_card_probe(struct
> > platform_device *pdev)
> > dai_link->dai_fmt = cinfo->daifmt;
> > dai_link->init = asoc_simple_card_dai_init;
> > memcpy(>dai_props->cpu_dai, >cpu_dai,
> > - sizeof(priv->dai_props->cpu_dai));
> > + sizeof(*priv->dai_props->cpu_dai));
> > memcpy(>dai_props->codec_dai, >codec_dai,
> > - sizeof(priv->dai_props->codec_dai));
> > + sizeof(*priv->dai_props->codec_dai));
> > }
>
> Ahh.. yes, simple-card is supporting non DT case, too.
> Thank you for your patch.
> But, I think ">dai_props->codec_dai" need to fix, too.
> And it needs to point cpu_dai/codec_dai.
> Thank you for pointing it. I will fixup and post with your name.
>
> Best regards
> ---
> Kuninori Morimoto
Sure, whatever you think is best, thank you for the quick response!
Nathan
