linux-kernel - Re: [PATCH v2 1/2] regmap: add support to regmap_field_bulk

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Date:   Wed, 30 Sep 2020 14:11:00 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        rafael@...nel.org, lgirdwood@...il.com, perex@...ex.cz,
        tiwai@...e.com, linux-kernel@...r.kernel.org,
        alsa-devel@...a-project.org, srivasam@...eaurora.org,
        rohitkr@...eaurora.org
Subject: Re: [PATCH v2 1/2] regmap: add support to
 regmap_field_bulk_alloc/free apis

On Wed, Sep 30, 2020 at 01:08:49PM +0100, Mark Brown wrote:
> On Wed, Sep 30, 2020 at 01:59:15PM +0200, Greg KH wrote:
> > On Fri, Sep 25, 2020 at 05:48:55PM +0100, Srinivas Kandagatla wrote:
> 
> > > +int devm_regmap_field_bulk_alloc(struct device *dev, struct regmap *regmap,
> > > +				 struct regmap_field **field,
> > > +				 struct reg_field *reg_field, int num_fields);
> > > +void devm_regmap_field_bulk_free(struct device *dev,
> > > +				 struct regmap_field *field);
> > > +
> > 
> > You only have a patch that uses these last two functions, so why add all
> > 4?  We don't add infrastructure to the kernel without users.
> 
> We have managed versions of the other regmap allocation functions, it
> makes sense for consistency to have managed versions of these too.  I
> think there's a meaningful difference between a simple and expected
> wrapper like these and infrastructure which hasn't been proved out by
> users.

Ok, do you think these are really needed?

A review would be nice :)

thanks,

greg k-h