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SubjectRe: [PATCH] watchdog: ts72xx_wdt: constify watchdog_ops structure
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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

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