[PATCH 01/25] iov_iter: Add ITER_XARRAY

[Matthew Wilcox]

On Wed, Jan 20, 2021 at 10:21:37PM +0000, David Howells wrote:
> -#define iterate_all_kinds(i, n, v, I, B, K) {			\
> +#define iterate_all_kinds(i, n, v, I, B, K, X) {		\

Do you need to add the X parameter?  It seems to always be the same as B.