Messages in this thread | | | Subject | Re: [PATCH] watchdog: coh901327_wdt: constify watchdog_ops structure | From | "Gustavo A. R. Silva" <> | Date | Sun, 16 Jul 2017 23:03:50 -0500 |
| |
On 07/07/2017 08:45 PM, Guenter Roeck wrote: > On 07/07/2017 05:33 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/coh901327_wdt.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/watchdog/coh901327_wdt.c >> b/drivers/watchdog/coh901327_wdt.c >> index 38dd60f0..4410337 100644 >> --- a/drivers/watchdog/coh901327_wdt.c >> +++ b/drivers/watchdog/coh901327_wdt.c >> @@ -218,7 +218,7 @@ static const struct watchdog_info coh901327_ident >> = { >> .identity = DRV_NAME, >> }; >> -static struct watchdog_ops coh901327_ops = { >> +static const struct watchdog_ops coh901327_ops = { >> .owner = THIS_MODULE, >> .start = coh901327_start, >> .stop = coh901327_stop, >> >
-- Gustavo A. R. Silva
| |