lkml.org 
[lkml]   [2017]   [Mar]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v2 1/3] watchdog: s3c2410: Constify local structures
From
Date
On 03/11/2017 09:42 AM, Krzysztof Kozlowski wrote:
> Structures watchdog_device, watchdog_ops and s3c2410_wdt_variant are not
> modified so they can be made const to increase code safeness.
>
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> ---
> drivers/watchdog/s3c2410_wdt.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
> index 6ed97596ca80..5eaec319e499 100644
> --- a/drivers/watchdog/s3c2410_wdt.c
> +++ b/drivers/watchdog/s3c2410_wdt.c
> @@ -131,7 +131,7 @@ struct s3c2410_wdt {
> unsigned long wtdat_save;
> struct watchdog_device wdt_device;
> struct notifier_block freq_transition;
> - struct s3c2410_wdt_variant *drv_data;
> + const struct s3c2410_wdt_variant *drv_data;
> struct regmap *pmureg;
> };
>
> @@ -401,7 +401,7 @@ static const struct watchdog_ops s3c2410wdt_ops = {
> .restart = s3c2410wdt_restart,
> };
>
> -static struct watchdog_device s3c2410_wdd = {
> +static const struct watchdog_device s3c2410_wdd = {
> .info = &s3c2410_wdt_ident,
> .ops = &s3c2410wdt_ops,
> .timeout = S3C2410_WATCHDOG_DEFAULT_TIME,
> @@ -507,15 +507,15 @@ static inline unsigned int s3c2410wdt_get_bootstatus(struct s3c2410_wdt *wdt)
> return 0;
> }
>
> -static inline struct s3c2410_wdt_variant *
> +static inline const struct s3c2410_wdt_variant *
> s3c2410_get_wdt_drv_data(struct platform_device *pdev)
> {
> if (pdev->dev.of_node) {
> const struct of_device_id *match;
> match = of_match_node(s3c2410_wdt_match, pdev->dev.of_node);
> - return (struct s3c2410_wdt_variant *)match->data;
> + return (const struct s3c2410_wdt_variant *)match->data;

The const in this typecast isn't necessary.

> } else {
> - return (struct s3c2410_wdt_variant *)
> + return (const struct s3c2410_wdt_variant *)

Same here. Transition to const is automatic.

> platform_get_device_id(pdev)->driver_data;
> }
> }
>

\
 
 \ /
  Last update: 2017-03-12 21:57    [W:0.097 / U:0.240 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site