Thread (51 messages) 51 messages, 7 authors, 2019-08-19

Re: [RFC PATCH 01/11] devfreq: exynos-bus: Extract exynos_bus_profile_init()

From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2019-08-05 09:56:27
Also in: dri-devel, linux-devicetree, linux-pm, linux-samsung-soc, lkml

On Wed, 31 Jul 2019 at 15:00, Artur Świgoń [off-list ref] wrote:
Hi,

On Wed, 2019-07-24 at 21:07 +0200, Krzysztof Kozlowski wrote:
quoted
On Tue, Jul 23, 2019 at 02:20:06PM +0200, Artur Świgoń wrote:
quoted
This patch adds a new static function, exynos_bus_profile_init(), extracted
from exynos_bus_probe().

Signed-off-by: Artur Świgoń <redacted>
---
 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?
Yes, you're right. I also prefer not to touch moved code.

Best regards,
Krzysztof

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