Re: [PATCH v3] fanotify: fix incorrect fmode_t casts

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On Sun 22-05-22 15:08:02, Vasily Averin wrote:
> Fixes sparce warnings:
> fs/notify/fanotify/fanotify_user.c:267:63: sparse:
>  warning: restricted fmode_t degrades to integer
> fs/notify/fanotify/fanotify_user.c:1351:28: sparse:
>  warning: restricted fmode_t degrades to integer
> 
> FMODE_NONTIFY have bitwise fmode_t type and requires __force attribute
> for any casts.
> 
> Signed-off-by: Vasily Averin <vvs@xxxxxxxxxx>
> Reviewed-by: Christian Brauner (Microsoft) <brauner@xxxxxxxxxx>

Thanks. I've merged the patch to my tree.

								Honza

> ---
> v3: split, according to Christoph Hellwig recommendation
> ---
>  fs/notify/fanotify/fanotify_user.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
> index a792e21c5309..16d8fc84713a 100644
> --- a/fs/notify/fanotify/fanotify_user.c
> +++ b/fs/notify/fanotify/fanotify_user.c
> @@ -264,7 +264,7 @@ static int create_fd(struct fsnotify_group *group, struct path *path,
>  	 * originally opened O_WRONLY.
>  	 */
>  	new_file = dentry_open(path,
> -			       group->fanotify_data.f_flags | FMODE_NONOTIFY,
> +			       group->fanotify_data.f_flags | __FMODE_NONOTIFY,
>  			       current_cred());
>  	if (IS_ERR(new_file)) {
>  		/*
> @@ -1348,7 +1348,7 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
>  	    (!(fid_mode & FAN_REPORT_NAME) || !(fid_mode & FAN_REPORT_FID)))
>  		return -EINVAL;
>  
> -	f_flags = O_RDWR | FMODE_NONOTIFY;
> +	f_flags = O_RDWR | __FMODE_NONOTIFY;
>  	if (flags & FAN_CLOEXEC)
>  		f_flags |= O_CLOEXEC;
>  	if (flags & FAN_NONBLOCK)
> -- 
> 2.36.1
> 
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR



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