2017-08-21 16:48:56

by Arvind Yadav

Subject: [PATCH] watchdog: ziirave: constify i2c_device_id

i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <[email protected]>
---
drivers/watchdog/ziirave_wdt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/ziirave_wdt.c b/drivers/watchdog/ziirave_wdt.c
index b4e0cea..d3594aa 100644
--- a/drivers/watchdog/ziirave_wdt.c
+++ b/drivers/watchdog/ziirave_wdt.c
@@ -737,7 +737,7 @@ static int ziirave_wdt_remove(struct i2c_client *client)
return 0;
}

-static struct i2c_device_id ziirave_wdt_id[] = {
+static const struct i2c_device_id ziirave_wdt_id[] = {
{ "rave-wdt", 0 },
{ }
};
--
2.7.4

2017-08-30 03:26:39

by Guenter Roeck

Subject: Re: watchdog: ziirave: constify i2c_device_id

On Mon, Aug 21, 2017 at 10:18:38PM +0530, Arvind Yadav wrote:
> i2c_device_id are not supposed to change at runtime. All functions
> working with i2c_device_id provided by <linux/i2c.h> work with
> const i2c_device_id. So mark the non-const structs as const.
>
> Signed-off-by: Arvind Yadav <[email protected]>

Reviewed-by: Guenter Roeck <[email protected]>

> ---
> drivers/watchdog/ziirave_wdt.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/watchdog/ziirave_wdt.c b/drivers/watchdog/ziirave_wdt.c
> index b4e0cea..d3594aa 100644
> --- a/drivers/watchdog/ziirave_wdt.c
> +++ b/drivers/watchdog/ziirave_wdt.c
> @@ -737,7 +737,7 @@ static int ziirave_wdt_remove(struct i2c_client *client)
> return 0;
> }
>
> -static struct i2c_device_id ziirave_wdt_id[] = {
> +static const struct i2c_device_id ziirave_wdt_id[] = {
> { "rave-wdt", 0 },
> { }
> };