Re: [PATCH] taskstats: drop the unused CPU_DONT_CARE enum member

[Balbir Singh]

On 9/16/26 4:06 AM, Bradley Morgan wrote:
> CPU_DONT_CARE was added by the original listener cpumask code in 2006
> (f9fd8914c1ac) and has never had a single user, not even in the
> commit that introduced it. It survived every refactor of the listener
> path since, including the recent handler folds.
> 
> Kill it, twenty years is enough.
> 
> Signed-off-by: Bradley Morgan <brads@xxxxxxxxxxxxxx>
> ---
>  kernel/taskstats.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/kernel/taskstats.c b/kernel/taskstats.c
> index 598d9cd83250..3997dbb5aead 100644
> --- a/kernel/taskstats.c
> +++ b/kernel/taskstats.c
> @@ -59,8 +59,7 @@ static DEFINE_PER_CPU(struct listener_list, listener_array);
>  
>  enum actions {
>  	REGISTER,
> -	DEREGISTER,
> -	CPU_DONT_CARE
> +	DEREGISTER
>  };
>  
>  static int prepare_reply(struct genl_info *info, u8 cmd, struct sk_buff **skbp,

Makes sense! Thanks for catching this

Reviewed-by: Balbir Singh <balbirs@xxxxxxxxxx>