linux-kernel - Re: [PATCH v5 5/7] iio: accel: kionix-kx022a: Refactor driver and add chip

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Date:   Mon, 12 Jun 2023 20:13:31 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Mehdi Djait <mehdi.djait.k@...il.com>
Cc:     jic23@...nel.org, mazziesaccount@...il.com,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
        lars@...afoo.de, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v5 5/7] iio: accel: kionix-kx022a: Refactor driver and
 add chip_info structure

On Mon, Jun 12, 2023 at 06:31:54PM +0200, Mehdi Djait wrote:
> On Mon, Jun 12, 2023 at 06:54:34PM +0300, Andy Shevchenko wrote:
> > On Mon, Jun 12, 2023 at 04:22:08PM +0200, Mehdi Djait wrote:

...

> > >  struct kx022a_data {
> > > +	const struct kx022a_chip_info *chip_info;
> > >  	struct regmap *regmap;
> > 
> > I would suggest to run bloat-o-meter with this version and if you place
> > chip_info after regmap. Does it gain us some memory?
> 
> I used the bloat-o-meter on the two .ko files (this version and the the
> one where chip_info after regamp) Is this what you asked for ?

Yes. I assume the old one is the current as in this patch?
If so, you know what to do in the next version :-)

> add/remove: 0/0 grow/shrink: 0/5 up/down: 0/-20 (-20)
> Function                                     old     new   delta
> kx132_get_fifo_bytes                         148     144      -4
> kx022a_trigger_set_state                     352     348      -4
> kx022a_read_raw                              380     376      -4
> kx022a_buffer_predisable                     248     244      -4
> kx022a_buffer_postenable                     296     292      -4
> Total: Before=11244, After=11224, chg -0.18%

-- 
With Best Regards,
Andy Shevchenko