linux-kernel - [PATCH 0/9] treewide: simplify getting .driver

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Message-Id: <20210920090522.23784-1-wsa+renesas@sang-engineering.com>
Date:   Mon, 20 Sep 2021 11:05:12 +0200
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-renesas-soc@...r.kernel.org,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        dmaengine@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-iio@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com, netdev@...r.kernel.org
Subject: [PATCH 0/9] treewide: simplify getting .driver_data

I got tired of fixing this in Renesas drivers manually, so I took the big
hammer. Remove this cumbersome code pattern which got copy-pasted too much
already:

-	struct platform_device *pdev = to_platform_device(dev);
-	struct ep93xx_keypad *keypad = platform_get_drvdata(pdev);
+	struct ep93xx_keypad *keypad = dev_get_drvdata(dev);

A branch, tested by buildbot, can be found here:

git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git coccinelle/get_drvdata

I am open for other comments, suggestions, too, of course.

Here is the cocci-script I created:

@@
struct device* d;
identifier pdev;
expression *ptr;
@@
(
-	struct platform_device *pdev = to_platform_device(d);
|
-	struct platform_device *pdev;
	...
-	pdev = to_platform_device(d);
)
	<... when != pdev
-	&pdev->dev
+	d
	...>

	ptr =
-	platform_get_drvdata(pdev)
+	dev_get_drvdata(d)

	<... when != pdev
-	&pdev->dev
+	d
	...>

Kind regards,

   Wolfram


Wolfram Sang (9):
  dmaengine: stm32-dmamux: simplify getting .driver_data
  firmware: meson: simplify getting .driver_data
  gpio: xilinx: simplify getting .driver_data
  drm/msm: simplify getting .driver_data
  drm/panfrost: simplify getting .driver_data
  iio: common: cros_ec_sensors: simplify getting .driver_data
  net: mdio: mdio-bcm-iproc: simplify getting .driver_data
  platform: chrome: cros_ec_sensorhub: simplify getting .driver_data
  remoteproc: omap_remoteproc: simplify getting .driver_data

 drivers/dma/stm32-dmamux.c                         | 14 +++++---------
 drivers/firmware/meson/meson_sm.c                  |  3 +--
 drivers/gpio/gpio-xilinx.c                         |  6 ++----
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c            | 13 +++++--------
 drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c           |  6 ++----
 drivers/gpu/drm/msm/dp/dp_display.c                |  6 ++----
 drivers/gpu/drm/msm/dsi/dsi_host.c                 |  6 ++----
 drivers/gpu/drm/msm/msm_drv.c                      |  3 +--
 drivers/gpu/drm/panfrost/panfrost_device.c         |  6 ++----
 .../common/cros_ec_sensors/cros_ec_sensors_core.c  |  3 +--
 drivers/net/mdio/mdio-bcm-iproc.c                  |  3 +--
 drivers/platform/chrome/cros_ec_sensorhub.c        |  6 ++----
 drivers/remoteproc/omap_remoteproc.c               |  6 ++----
 13 files changed, 28 insertions(+), 53 deletions(-)

-- 
2.30.2