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From: "Artur Świgoń" <a.swigon@partner.samsung.com>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-pm@vger.kernel.org, dri-devel@lists.freedesktop.org,
	cw00.choi@samsung.com, myungjoo.ham@samsung.com,
	inki.dae@samsung.com, sw0312.kim@samsung.com,
	georgi.djakov@linaro.org, m.szyprowski@samsung.com,
	"Bartłomiej Żołnierkiewicz" <b.zolnierkie@samsung.com>
Subject: Re: [RFC PATCH 01/11] devfreq: exynos-bus: Extract exynos_bus_profile_init()
Date: Wed, 31 Jul 2019 15:00:38 +0200	[thread overview]
Message-ID: <bda10bcc66aae96355e74c4739229d72bcc95b0d.camel@partner.samsung.com> (raw)
In-Reply-To: <20190724190741.GD14346@kozik-lap>

Hi,

On Wed, 2019-07-24 at 21:07 +0200, Krzysztof Kozlowski wrote:
> On Tue, Jul 23, 2019 at 02:20:06PM +0200, Artur Świgoń wrote:
> > This patch adds a new static function, exynos_bus_profile_init(), extracted
> > from exynos_bus_probe().
> > 
> > Signed-off-by: Artur Świgoń <a.swigon@partner.samsung.com>
> > ---
> >  drivers/devfreq/exynos-bus.c | 106 ++++++++++++++++++++---------------
> >  1 file changed, 60 insertions(+), 46 deletions(-)
> > 
> > diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c
> > index d9f377912c10..d8f1efaf2d49 100644
> > --- a/drivers/devfreq/exynos-bus.c
> > +++ b/drivers/devfreq/exynos-bus.c
> > @@ -372,12 +372,69 @@ static int exynos_bus_parse_of(struct device_node *np,
> >  	return ret;
> >  }
> >  
> > +static int exynos_bus_profile_init(struct exynos_bus *bus,
> > +				   struct devfreq_dev_profile *profile)
> > +{
> > +	struct device *dev = bus->dev;
> > +	struct devfreq_simple_ondemand_data *ondemand_data;
> > +	int ret;
> > +
> > +	/* Initialize the struct profile and governor data for parent device */
> > +	profile->polling_ms = 50;
> > +	profile->target = exynos_bus_target;
> > +	profile->get_dev_status = exynos_bus_get_dev_status;
> > +	profile->exit = exynos_bus_exit;
> > +
> > +	ondemand_data = devm_kzalloc(dev, sizeof(*ondemand_data), GFP_KERNEL);
> > +	if (!ondemand_data) {
> > +		ret = -ENOMEM;
> > +		goto err;
> 
> Just return proper error code. Less lines, obvious code since you do not
> have any cleanup in error path.

I was advised to avoid modifying code being moved (in one patch). I do make
changes in these places in patch 04/11, i.e. change the original label 'err' to
'out'. What's your opinion on making the proposed changes to patches 01 and 02
(s/goto err/return ret/) in patch 04 instead?

> > +
> > +	/* Register opp_notifier to catch the change of OPP  */
> > +	ret = devm_devfreq_register_opp_notifier(dev, bus->devfreq);
> > +	if (ret < 0) {
> > +		dev_err(dev, "failed to register opp notifier\n");
> > +		goto err;
> 
> The same - return err.
> 
> Best regards,
> Krzysztof

Best regards,
-- 
Artur Świgoń
Samsung R&D Institute Poland
Samsung Electronics



  reply	other threads:[~2019-07-31 13:00 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20190723122022eucas1p2f568f74f981f9de9012eb693c3b446d5@eucas1p2.samsung.com>
2019-07-23 12:20 ` [RFC PATCH 00/11] Simple QoS for exynos-bus driver using interconnect Artur Świgoń
     [not found]   ` <CGME20190723122022eucas1p1266d90873d564894bd852c20140f8474@eucas1p1.samsung.com>
2019-07-23 12:20     ` [RFC PATCH 01/11] devfreq: exynos-bus: Extract exynos_bus_profile_init() Artur Świgoń
2019-07-24 19:07       ` Krzysztof Kozlowski
2019-07-31 13:00         ` Artur Świgoń [this message]
2019-08-05  9:56           ` Krzysztof Kozlowski
2019-07-25 12:43       ` Chanwoo Choi
2019-07-26 10:42         ` Krzysztof Kozlowski
2019-07-26 10:52           ` Chanwoo Choi
     [not found]   ` <CGME20190723122023eucas1p2ff56c00b60a676ed85d9fe159a1839f2@eucas1p2.samsung.com>
2019-07-23 12:20     ` [RFC PATCH 02/11] devfreq: exynos-bus: Extract exynos_bus_profile_init_passive() Artur Świgoń
2019-07-24 19:08       ` Krzysztof Kozlowski
2019-07-25 12:45       ` Chanwoo Choi
     [not found]   ` <CGME20190723122024eucas1p1ff060d072132bfbc8a8a1d10fa1f90f8@eucas1p1.samsung.com>
2019-07-23 12:20     ` [RFC PATCH 03/11] devfreq: exynos-bus: Change goto-based logic to if-else logic Artur Świgoń
2019-07-24 19:10       ` Krzysztof Kozlowski
2019-07-25 12:56       ` Chanwoo Choi
2019-07-25 13:02         ` Chanwoo Choi
     [not found]   ` <CGME20190723122024eucas1p25a480ccddaa69ee1d0f1a07960ca3f22@eucas1p2.samsung.com>
2019-07-23 12:20     ` [RFC PATCH 04/11] devfreq: exynos-bus: Clean up code Artur Świgoń
2019-07-24 19:14       ` Krzysztof Kozlowski
2019-07-25 12:50       ` Chanwoo Choi
2019-07-26 10:45         ` Krzysztof Kozlowski
2019-07-26 11:04           ` Chanwoo Choi
     [not found]   ` <CGME20190723122025eucas1p251df372451e0b27ad7f2e3c89df60b64@eucas1p2.samsung.com>
2019-07-23 12:20     ` [RFC PATCH 05/11] icc: Export of_icc_get_from_provider() Artur Świgoń
2019-07-24 19:15       ` Krzysztof Kozlowski
     [not found]   ` <CGME20190723122026eucas1p2acf705de2a47ba54f383d916f5383144@eucas1p2.samsung.com>
2019-07-23 12:20     ` [RFC PATCH 06/11] icc: Relax requirement in of_icc_get_from_provider() Artur Świgoń
2019-07-24 19:16       ` Krzysztof Kozlowski
     [not found]   ` <CGME20190723122027eucas1p124f44370a63b16dcb765585761d661a3@eucas1p1.samsung.com>
2019-07-23 12:20     ` [RFC PATCH 07/11] icc: Relax condition in apply_constraints() Artur Świgoń
     [not found]   ` <CGME20190723122027eucas1p24b1d76e3139f7cc52614d7613ff9ba98@eucas1p2.samsung.com>
2019-07-23 12:20     ` [RFC PATCH 08/11] arm: dts: exynos: Add parents and #interconnect-cells to Exynos4412 Artur Świgoń
2019-07-24 19:24       ` Krzysztof Kozlowski
2019-07-31 13:00         ` Artur Świgoń
2019-07-25 13:13       ` Chanwoo Choi
2019-07-26 12:02         ` Marek Szyprowski
2019-07-29  1:20           ` Chanwoo Choi
     [not found]   ` <CGME20190723122028eucas1p2eb75f35b810e71d6c590370aaff0997b@eucas1p2.samsung.com>
2019-07-23 12:20     ` [RFC PATCH 09/11] devfreq: exynos-bus: Add interconnect functionality to exynos-bus Artur Świgoń
2019-07-24 18:36       ` Krzysztof Kozlowski
2019-07-31 13:01         ` Artur Świgoń
2019-07-26  8:05       ` Georgi Djakov
2019-08-01  7:59         ` Artur Świgoń
2019-08-07 14:21           ` Georgi Djakov
2019-08-08 13:28             ` Artur Świgoń
2019-07-29  1:52       ` Chanwoo Choi
2019-08-08 13:18         ` Artur Świgoń
2019-08-09  2:17           ` Chanwoo Choi
2019-08-08 15:00         ` Leonard Crestez
2019-08-19 23:44           ` Chanwoo Choi
2019-08-06 13:41       ` Leonard Crestez
2019-08-08 13:19         ` Artur Świgoń
     [not found]   ` <CGME20190723122029eucas1p21e1a51e759f9b605d2c89daf659af7bb@eucas1p2.samsung.com>
2019-07-23 12:20     ` [RFC PATCH 10/11] arm: dts: exynos: Add interconnects to Exynos4412 mixer Artur Świgoń
     [not found]   ` <CGME20190723122029eucas1p2915f536d9ef43a7bd043a878a553439f@eucas1p2.samsung.com>
2019-07-23 12:20     ` [RFC PATCH 11/11] drm: exynos: mixer: Add interconnect support Artur Świgoń
2019-07-24 18:52       ` Krzysztof Kozlowski
2019-07-24 18:53   ` [RFC PATCH 00/11] Simple QoS for exynos-bus driver using interconnect Krzysztof Kozlowski
2019-08-13  6:17   ` Chanwoo Choi
2019-08-13  6:19     ` Chanwoo Choi

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