* [PATCH 0/1] slimbus: simplify getting .driver_data
@ 2018-10-21 20:00 Wolfram Sang
2018-10-21 20:00 ` [PATCH 1/1] slimbus: qcom-ctrl: " Wolfram Sang
0 siblings, 1 reply; 3+ messages in thread
From: Wolfram Sang @ 2018-10-21 20:00 UTC (permalink / raw)
To: linux-kernel; +Cc: linux-renesas-soc, Wolfram Sang, alsa-devel
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 have been asked if it couldn't be done for dev_set_drvdata as well. I checked
it and did not find one occasion where it could be simplified like this. Not
much of a surprise because driver_data is usually set in probe() functions
which access struct platform_device in many other ways.
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 (1):
slimbus: qcom-ctrl: simplify getting .driver_data
drivers/slimbus/qcom-ctrl.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
--
2.19.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH 1/1] slimbus: qcom-ctrl: simplify getting .driver_data
2018-10-21 20:00 [PATCH 0/1] slimbus: simplify getting .driver_data Wolfram Sang
@ 2018-10-21 20:00 ` Wolfram Sang
2018-11-07 9:27 ` Srinivas Kandagatla
0 siblings, 1 reply; 3+ messages in thread
From: Wolfram Sang @ 2018-10-21 20:00 UTC (permalink / raw)
To: linux-kernel
Cc: linux-renesas-soc, Wolfram Sang, Srinivas Kandagatla, alsa-devel
We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
Build tested only. buildbot is happy.
drivers/slimbus/qcom-ctrl.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/slimbus/qcom-ctrl.c b/drivers/slimbus/qcom-ctrl.c
index db1f5135846a..ad3e2e23f56e 100644
--- a/drivers/slimbus/qcom-ctrl.c
+++ b/drivers/slimbus/qcom-ctrl.c
@@ -654,8 +654,7 @@ static int qcom_slim_remove(struct platform_device *pdev)
#ifdef CONFIG_PM
static int qcom_slim_runtime_suspend(struct device *device)
{
- struct platform_device *pdev = to_platform_device(device);
- struct qcom_slim_ctrl *ctrl = platform_get_drvdata(pdev);
+ struct qcom_slim_ctrl *ctrl = dev_get_drvdata(device);
int ret;
dev_dbg(device, "pm_runtime: suspending...\n");
@@ -672,8 +671,7 @@ static int qcom_slim_runtime_suspend(struct device *device)
static int qcom_slim_runtime_resume(struct device *device)
{
- struct platform_device *pdev = to_platform_device(device);
- struct qcom_slim_ctrl *ctrl = platform_get_drvdata(pdev);
+ struct qcom_slim_ctrl *ctrl = dev_get_drvdata(device);
int ret = 0;
dev_dbg(device, "pm_runtime: resuming...\n");
--
2.19.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH 1/1] slimbus: qcom-ctrl: simplify getting .driver_data
2018-10-21 20:00 ` [PATCH 1/1] slimbus: qcom-ctrl: " Wolfram Sang
@ 2018-11-07 9:27 ` Srinivas Kandagatla
0 siblings, 0 replies; 3+ messages in thread
From: Srinivas Kandagatla @ 2018-11-07 9:27 UTC (permalink / raw)
To: Wolfram Sang, linux-kernel; +Cc: linux-renesas-soc, alsa-devel
On 21/10/18 21:00, Wolfram Sang wrote:
> We should get 'driver_data' from 'struct device' directly. Going via
> platform_device is an unneeded step back and forth.
>
> Signed-off-by: Wolfram Sang<wsa+renesas@sang-engineering.com>
> ---
Applied to slimbus tree!
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-10-21 20:00 [PATCH 0/1] slimbus: simplify getting .driver_data Wolfram Sang
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2018-11-07 9:27 ` Srinivas Kandagatla
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