[PATCH 1/5] cdev: make file operations const
Sascha Hauer
s.hauer at pengutronix.de
Wed May 31 23:32:15 PDT 2017
On Tue, May 30, 2017 at 04:09:43PM +0200, Philipp Zabel wrote:
> scripts/checkpatch.pl warns that struct file_operations should be const,
> but cdev->ops is not const, so without this patch we can choose between
> a warning from checkpatch and a warning from the compiler about
> discarding the const attribute when assigning the struct file_operations
> cdev->ops.
>
> Since there is no reason to modify the contents of cdev->ops after
> probing, make it const.
Applied this one and the second patch.
Sascha
>
> Signed-off-by: Philipp Zabel <p.zabel at pengutronix.de>
> ---
> include/driver.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/driver.h b/include/driver.h
> index 52e06f7d62..086e44636b 100644
> --- a/include/driver.h
> +++ b/include/driver.h
> @@ -440,7 +440,7 @@ struct file_operations {
> #define MAX_PARTUUID_STR sizeof("00112233-4455-6677-8899-AABBCCDDEEFF")
>
> struct cdev {
> - struct file_operations *ops;
> + const struct file_operations *ops;
> void *priv;
> struct device_d *dev;
> struct device_node *device_node;
> --
> 2.11.0
>
>
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