MBUF_CHAIN_LEN
CTASSERT((MBUF_CHAIN_LEN % sizeof(uint32_t)) == 0);
kmem_free(bufa, MBUF_CHAIN_LEN + 1);
kmem_free(bufb, MBUF_CHAIN_LEN + 1);
m = mbuf_random_len(MBUF_CHAIN_LEN);
m = mbuf_bytesize(MBUF_CHAIN_LEN);
char *s = kmem_zalloc(MBUF_CHAIN_LEN + 1, KM_SLEEP);
if (n + sizeof(uint32_t) == MBUF_CHAIN_LEN) {
char *s = kmem_zalloc(MBUF_CHAIN_LEN + 1, KM_SLEEP);