diff mbox series

[03/22] watchdog: aspeed_wdt: Use 'dev' instead of dereferencing it repeatedly

Message ID 1554752326-13319-4-git-send-email-linux@roeck-us.net (mailing list archive)
State Accepted
Headers show
Series watchdog: Convert to use device managed functions and other improvements | expand

Commit Message

Guenter Roeck April 8, 2019, 7:38 p.m. UTC
Introduce local variable 'struct device *dev' and use it instead of
dereferencing it repeatedly.

The conversion was done automatically with coccinelle using the
following semantic patches. The semantic patches and the scripts
used to generate this commit log are available at
https://github.com/groeck/coccinelle-patches

Cc: Joel Stanley <joel@jms.id.au>
Cc: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/watchdog/aspeed_wdt.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

Comments

Andrew Jeffery April 9, 2019, 12:37 a.m. UTC | #1
On Tue, 9 Apr 2019, at 05:09, Guenter Roeck wrote:
> Introduce local variable 'struct device *dev' and use it instead of
> dereferencing it repeatedly.
> 
> The conversion was done automatically with coccinelle using the
> following semantic patches. The semantic patches and the scripts
> used to generate this commit log are available at
> https://github.com/groeck/coccinelle-patches
> 
> Cc: Joel Stanley <joel@jms.id.au>
> Cc: Andrew Jeffery <andrew@aj.id.au>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
>  drivers/watchdog/aspeed_wdt.c | 21 +++++++++++----------
>  1 file changed, 11 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/watchdog/aspeed_wdt.c b/drivers/watchdog/aspeed_wdt.c
> index f09333fd54b4..34117745c65f 100644
> --- a/drivers/watchdog/aspeed_wdt.c
> +++ b/drivers/watchdog/aspeed_wdt.c
> @@ -187,6 +187,7 @@ static const struct watchdog_info aspeed_wdt_info = {
>  
>  static int aspeed_wdt_probe(struct platform_device *pdev)
>  {
> +	struct device *dev = &pdev->dev;
>  	const struct aspeed_wdt_config *config;
>  	const struct of_device_id *ofdid;
>  	struct aspeed_wdt *wdt;
> @@ -196,7 +197,7 @@ static int aspeed_wdt_probe(struct platform_device *pdev)
>  	u32 status;
>  	int ret;
>  
> -	wdt = devm_kzalloc(&pdev->dev, sizeof(*wdt), GFP_KERNEL);
> +	wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);
>  	if (!wdt)
>  		return -ENOMEM;

Looks like it's missed this one somehow?

wdt->base = devm_ioremap_resource(&pdev->dev, res); 

Otherwise,

Reviewed-by: Andrew Jeffery <andrew@aj.id.au>

>  
> @@ -212,12 +213,12 @@ static int aspeed_wdt_probe(struct platform_device *pdev)
>  	wdt->wdd.info = &aspeed_wdt_info;
>  	wdt->wdd.ops = &aspeed_wdt_ops;
>  	wdt->wdd.max_hw_heartbeat_ms = WDT_MAX_TIMEOUT_MS;
> -	wdt->wdd.parent = &pdev->dev;
> +	wdt->wdd.parent = dev;
>  
>  	wdt->wdd.timeout = WDT_DEFAULT_TIMEOUT;
> -	watchdog_init_timeout(&wdt->wdd, 0, &pdev->dev);
> +	watchdog_init_timeout(&wdt->wdd, 0, dev);
>  
> -	np = pdev->dev.of_node;
> +	np = dev->of_node;
>  
>  	ofdid = of_match_node(aspeed_wdt_of_table, np);
>  	if (!ofdid)
> @@ -286,11 +287,11 @@ static int aspeed_wdt_probe(struct platform_device *pdev)
>  		u32 max_duration = config->ext_pulse_width_mask + 1;
>  
>  		if (duration == 0 || duration > max_duration) {
> -			dev_err(&pdev->dev, "Invalid pulse duration: %uus\n",
> -					duration);
> +			dev_err(dev, "Invalid pulse duration: %uus\n",
> +				duration);
>  			duration = max(1U, min(max_duration, duration));
> -			dev_info(&pdev->dev, "Pulse duration set to %uus\n",
> -					duration);
> +			dev_info(dev, "Pulse duration set to %uus\n",
> +				 duration);
>  		}
>  
>  		/*
> @@ -312,9 +313,9 @@ static int aspeed_wdt_probe(struct platform_device *pdev)
>  	if (status & WDT_TIMEOUT_STATUS_BOOT_SECONDARY)
>  		wdt->wdd.bootstatus = WDIOF_CARDRESET;
>  
> -	ret = devm_watchdog_register_device(&pdev->dev, &wdt->wdd);
> +	ret = devm_watchdog_register_device(dev, &wdt->wdd);
>  	if (ret) {
> -		dev_err(&pdev->dev, "failed to register\n");
> +		dev_err(dev, "failed to register\n");
>  		return ret;
>  	}
>  
> -- 
> 2.7.4
> 
>
Guenter Roeck April 9, 2019, 1:03 a.m. UTC | #2
Hi Andrew,

On 4/8/19 5:37 PM, Andrew Jeffery wrote:
> 
> 
> On Tue, 9 Apr 2019, at 05:09, Guenter Roeck wrote:
>> Introduce local variable 'struct device *dev' and use it instead of
>> dereferencing it repeatedly.
>>
>> The conversion was done automatically with coccinelle using the
>> following semantic patches. The semantic patches and the scripts
>> used to generate this commit log are available at
>> https://github.com/groeck/coccinelle-patches
>>
>> Cc: Joel Stanley <joel@jms.id.au>
>> Cc: Andrew Jeffery <andrew@aj.id.au>
>> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
>> ---
>>   drivers/watchdog/aspeed_wdt.c | 21 +++++++++++----------
>>   1 file changed, 11 insertions(+), 10 deletions(-)
>>
>> diff --git a/drivers/watchdog/aspeed_wdt.c b/drivers/watchdog/aspeed_wdt.c
>> index f09333fd54b4..34117745c65f 100644
>> --- a/drivers/watchdog/aspeed_wdt.c
>> +++ b/drivers/watchdog/aspeed_wdt.c
>> @@ -187,6 +187,7 @@ static const struct watchdog_info aspeed_wdt_info = {
>>   
>>   static int aspeed_wdt_probe(struct platform_device *pdev)
>>   {
>> +	struct device *dev = &pdev->dev;
>>   	const struct aspeed_wdt_config *config;
>>   	const struct of_device_id *ofdid;
>>   	struct aspeed_wdt *wdt;
>> @@ -196,7 +197,7 @@ static int aspeed_wdt_probe(struct platform_device *pdev)
>>   	u32 status;
>>   	int ret;
>>   
>> -	wdt = devm_kzalloc(&pdev->dev, sizeof(*wdt), GFP_KERNEL);
>> +	wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);
>>   	if (!wdt)
>>   		return -ENOMEM;
> 
> Looks like it's missed this one somehow?
> 
> wdt->base = devm_ioremap_resource(&pdev->dev, res);
> 
> Otherwise,
> 
> Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
> 

Assuming you mean the conversion to use devm_platform_ioremap_resource(),
I had this already addressed with a single patch for all watchdog drivers.

https://patchwork.kernel.org/patch/10882207/

Sorry, I didn't Cc: you on that one - I limited the number of Cc:s to avoid being
tagged as spammer.

Guenter
Andrew Jeffery April 9, 2019, 1:05 a.m. UTC | #3
On Tue, 9 Apr 2019, at 10:33, Guenter Roeck wrote:
> Hi Andrew,
> 
> On 4/8/19 5:37 PM, Andrew Jeffery wrote:
> > 
> > 
> > On Tue, 9 Apr 2019, at 05:09, Guenter Roeck wrote:
> >> Introduce local variable 'struct device *dev' and use it instead of
> >> dereferencing it repeatedly.
> >>
> >> The conversion was done automatically with coccinelle using the
> >> following semantic patches. The semantic patches and the scripts
> >> used to generate this commit log are available at
> >> https://github.com/groeck/coccinelle-patches
> >>
> >> Cc: Joel Stanley <joel@jms.id.au>
> >> Cc: Andrew Jeffery <andrew@aj.id.au>
> >> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> >> ---
> >>   drivers/watchdog/aspeed_wdt.c | 21 +++++++++++----------
> >>   1 file changed, 11 insertions(+), 10 deletions(-)
> >>
> >> diff --git a/drivers/watchdog/aspeed_wdt.c b/drivers/watchdog/aspeed_wdt.c
> >> index f09333fd54b4..34117745c65f 100644
> >> --- a/drivers/watchdog/aspeed_wdt.c
> >> +++ b/drivers/watchdog/aspeed_wdt.c
> >> @@ -187,6 +187,7 @@ static const struct watchdog_info aspeed_wdt_info = {
> >>   
> >>   static int aspeed_wdt_probe(struct platform_device *pdev)
> >>   {
> >> +	struct device *dev = &pdev->dev;
> >>   	const struct aspeed_wdt_config *config;
> >>   	const struct of_device_id *ofdid;
> >>   	struct aspeed_wdt *wdt;
> >> @@ -196,7 +197,7 @@ static int aspeed_wdt_probe(struct platform_device *pdev)
> >>   	u32 status;
> >>   	int ret;
> >>   
> >> -	wdt = devm_kzalloc(&pdev->dev, sizeof(*wdt), GFP_KERNEL);
> >> +	wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);
> >>   	if (!wdt)
> >>   		return -ENOMEM;
> > 
> > Looks like it's missed this one somehow?
> > 
> > wdt->base = devm_ioremap_resource(&pdev->dev, res);
> > 
> > Otherwise,
> > 
> > Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
> > 
> 
> Assuming you mean the conversion to use devm_platform_ioremap_resource(),
> I had this already addressed with a single patch for all watchdog drivers.
> 
> https://patchwork.kernel.org/patch/10882207/
> 
> Sorry, I didn't Cc: you on that one - I limited the number of Cc:s to 
> avoid being
> tagged as spammer.

That's the piece I was missing.

Thanks!

Andrew
diff mbox series

Patch

diff --git a/drivers/watchdog/aspeed_wdt.c b/drivers/watchdog/aspeed_wdt.c
index f09333fd54b4..34117745c65f 100644
--- a/drivers/watchdog/aspeed_wdt.c
+++ b/drivers/watchdog/aspeed_wdt.c
@@ -187,6 +187,7 @@  static const struct watchdog_info aspeed_wdt_info = {
 
 static int aspeed_wdt_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	const struct aspeed_wdt_config *config;
 	const struct of_device_id *ofdid;
 	struct aspeed_wdt *wdt;
@@ -196,7 +197,7 @@  static int aspeed_wdt_probe(struct platform_device *pdev)
 	u32 status;
 	int ret;
 
-	wdt = devm_kzalloc(&pdev->dev, sizeof(*wdt), GFP_KERNEL);
+	wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);
 	if (!wdt)
 		return -ENOMEM;
 
@@ -212,12 +213,12 @@  static int aspeed_wdt_probe(struct platform_device *pdev)
 	wdt->wdd.info = &aspeed_wdt_info;
 	wdt->wdd.ops = &aspeed_wdt_ops;
 	wdt->wdd.max_hw_heartbeat_ms = WDT_MAX_TIMEOUT_MS;
-	wdt->wdd.parent = &pdev->dev;
+	wdt->wdd.parent = dev;
 
 	wdt->wdd.timeout = WDT_DEFAULT_TIMEOUT;
-	watchdog_init_timeout(&wdt->wdd, 0, &pdev->dev);
+	watchdog_init_timeout(&wdt->wdd, 0, dev);
 
-	np = pdev->dev.of_node;
+	np = dev->of_node;
 
 	ofdid = of_match_node(aspeed_wdt_of_table, np);
 	if (!ofdid)
@@ -286,11 +287,11 @@  static int aspeed_wdt_probe(struct platform_device *pdev)
 		u32 max_duration = config->ext_pulse_width_mask + 1;
 
 		if (duration == 0 || duration > max_duration) {
-			dev_err(&pdev->dev, "Invalid pulse duration: %uus\n",
-					duration);
+			dev_err(dev, "Invalid pulse duration: %uus\n",
+				duration);
 			duration = max(1U, min(max_duration, duration));
-			dev_info(&pdev->dev, "Pulse duration set to %uus\n",
-					duration);
+			dev_info(dev, "Pulse duration set to %uus\n",
+				 duration);
 		}
 
 		/*
@@ -312,9 +313,9 @@  static int aspeed_wdt_probe(struct platform_device *pdev)
 	if (status & WDT_TIMEOUT_STATUS_BOOT_SECONDARY)
 		wdt->wdd.bootstatus = WDIOF_CARDRESET;
 
-	ret = devm_watchdog_register_device(&pdev->dev, &wdt->wdd);
+	ret = devm_watchdog_register_device(dev, &wdt->wdd);
 	if (ret) {
-		dev_err(&pdev->dev, "failed to register\n");
+		dev_err(dev, "failed to register\n");
 		return ret;
 	}