> index f277d023ebcd..b55e6ef4d677 100644
> --- a/fs/kernfs/file.c
> +++ b/fs/kernfs/file.c
> @@ -124,7 +124,7 @@ static void *kernfs_seq_start(struct seq_file *sf, loff_t 
> *ppos)
>                * The same behavior and code as single_open().  Returns
>                * !NULL if pos is at the beginning; otherwise, NULL.
>                */
> -             return NULL + !*ppos;
> +             return (void *)(uintptr_t)!*ppos;

Yikes.  This is just horrible, why bnot the completely obvious:

        if (ops->seq_start) {
                ...
                return next;
        }

        if (*ppos)
                return NULL;
        return ppos; /* random cookie */

>  static void *single_start(struct seq_file *p, loff_t *pos)
>  {
> -     return NULL + (*pos == 0);
> +     return (void *)(uintptr_t)(*pos == 0);

Same here.

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