* [PATCH] watchdog: ts72xx_wdt: constify watchdog_ops structure
@ 2017-07-08 0:18 Gustavo A. R. Silva
2017-07-08 1:44 ` Guenter Roeck
0 siblings, 1 reply; 3+ messages in thread
From: Gustavo A. R. Silva @ 2017-07-08 0:18 UTC (permalink / raw)
To: Wim Van Sebroeck, Guenter Roeck
Cc: linux-watchdog, linux-kernel, Gustavo A. R. Silva
Check for watchdog_ops structures that are only stored in the ops field of
a watchdog_device structure. This field is declared const, so watchdog_ops
structures that have this property can be declared as const also.
This issue was detected using Coccinelle and the following semantic patch:
@r
disable optional_qualifier@
identifier i;
position p;
@@
static struct watchdog_ops i@p = { ... };
@ok@
identifier r.i;
struct watchdog_device e;
position p;
@@
e.ops = &i@p;
@bad@
position p != {r.p,ok.p};
identifier r.i;
struct watchdog_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct watchdog_ops i = { ... };
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
---
drivers/watchdog/ts72xx_wdt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
index 17c25da..811e43c 100644
--- a/drivers/watchdog/ts72xx_wdt.c
+++ b/drivers/watchdog/ts72xx_wdt.c
@@ -112,7 +112,7 @@ static const struct watchdog_info ts72xx_wdt_ident = {
.identity = "TS-72XX WDT",
};
-static struct watchdog_ops ts72xx_wdt_ops = {
+static const struct watchdog_ops ts72xx_wdt_ops = {
.owner = THIS_MODULE,
.start = ts72xx_wdt_start,
.stop = ts72xx_wdt_stop,
--
2.5.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] watchdog: ts72xx_wdt: constify watchdog_ops structure
2017-07-08 0:18 [PATCH] watchdog: ts72xx_wdt: constify watchdog_ops structure Gustavo A. R. Silva
@ 2017-07-08 1:44 ` Guenter Roeck
2017-07-17 4:02 ` Gustavo A. R. Silva
0 siblings, 1 reply; 3+ messages in thread
From: Guenter Roeck @ 2017-07-08 1:44 UTC (permalink / raw)
To: Gustavo A. R. Silva, Wim Van Sebroeck; +Cc: linux-watchdog, linux-kernel
On 07/07/2017 05:18 PM, Gustavo A. R. Silva wrote:
> Check for watchdog_ops structures that are only stored in the ops field of
> a watchdog_device structure. This field is declared const, so watchdog_ops
> structures that have this property can be declared as const also.
>
> This issue was detected using Coccinelle and the following semantic patch:
>
> @r
> disable optional_qualifier@
> identifier i;
> position p;
> @@
> static struct watchdog_ops i@p = { ... };
>
> @ok@
> identifier r.i;
> struct watchdog_device e;
> position p;
> @@
> e.ops = &i@p;
>
> @bad@
> position p != {r.p,ok.p};
> identifier r.i;
> struct watchdog_ops e;
> @@
> e@i@p
>
> @depends on !bad disable optional_qualifier@
> identifier r.i;
> @@
> static
> +const
> struct watchdog_ops i = { ... };
>
> Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> ---
> drivers/watchdog/ts72xx_wdt.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
> index 17c25da..811e43c 100644
> --- a/drivers/watchdog/ts72xx_wdt.c
> +++ b/drivers/watchdog/ts72xx_wdt.c
> @@ -112,7 +112,7 @@ static const struct watchdog_info ts72xx_wdt_ident = {
> .identity = "TS-72XX WDT",
> };
>
> -static struct watchdog_ops ts72xx_wdt_ops = {
> +static const struct watchdog_ops ts72xx_wdt_ops = {
> .owner = THIS_MODULE,
> .start = ts72xx_wdt_start,
> .stop = ts72xx_wdt_stop,
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] watchdog: ts72xx_wdt: constify watchdog_ops structure
2017-07-08 1:44 ` Guenter Roeck
@ 2017-07-17 4:02 ` Gustavo A. R. Silva
0 siblings, 0 replies; 3+ messages in thread
From: Gustavo A. R. Silva @ 2017-07-17 4:02 UTC (permalink / raw)
To: Guenter Roeck, Wim Van Sebroeck; +Cc: linux-watchdog, linux-kernel
On 07/07/2017 08:44 PM, Guenter Roeck wrote:
> On 07/07/2017 05:18 PM, Gustavo A. R. Silva wrote:
>> Check for watchdog_ops structures that are only stored in the ops
>> field of
>> a watchdog_device structure. This field is declared const, so
>> watchdog_ops
>> structures that have this property can be declared as const also.
>>
>> This issue was detected using Coccinelle and the following semantic
>> patch:
>>
>> @r
>> disable optional_qualifier@
>> identifier i;
>> position p;
>> @@
>> static struct watchdog_ops i@p = { ... };
>>
>> @ok@
>> identifier r.i;
>> struct watchdog_device e;
>> position p;
>> @@
>> e.ops = &i@p;
>>
>> @bad@
>> position p != {r.p,ok.p};
>> identifier r.i;
>> struct watchdog_ops e;
>> @@
>> e@i@p
>>
>> @depends on !bad disable optional_qualifier@
>> identifier r.i;
>> @@
>> static
>> +const
>> struct watchdog_ops i = { ... };
>>
>> Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
>
> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
>
Thank you, Guenter.
>> ---
>> drivers/watchdog/ts72xx_wdt.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/watchdog/ts72xx_wdt.c
>> b/drivers/watchdog/ts72xx_wdt.c
>> index 17c25da..811e43c 100644
>> --- a/drivers/watchdog/ts72xx_wdt.c
>> +++ b/drivers/watchdog/ts72xx_wdt.c
>> @@ -112,7 +112,7 @@ static const struct watchdog_info
>> ts72xx_wdt_ident = {
>> .identity = "TS-72XX WDT",
>> };
>> -static struct watchdog_ops ts72xx_wdt_ops = {
>> +static const struct watchdog_ops ts72xx_wdt_ops = {
>> .owner = THIS_MODULE,
>> .start = ts72xx_wdt_start,
>> .stop = ts72xx_wdt_stop,
>>
>
--
Gustavo A. R. Silva
^ permalink raw reply [flat|nested] 3+ messages in thread
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2017-07-08 0:18 [PATCH] watchdog: ts72xx_wdt: constify watchdog_ops structure Gustavo A. R. Silva
2017-07-08 1:44 ` Guenter Roeck
2017-07-17 4:02 ` Gustavo A. R. Silva
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