nft_trans_one_elem
struct nft_trans_one_elem elems[] __counted_by(nelems);
#define NFT_MAX_SET_NELEMS ((2048 - sizeof(struct nft_trans_elem)) / sizeof(struct nft_trans_one_elem))
const struct nft_trans_one_elem *elem)
struct nft_trans_one_elem *elem = &te->elems[i];
struct nft_trans_one_elem *ue;