mlx4_ib_demux_work
struct mlx4_ib_demux_work *dmxw;
dmxw = container_of(work, struct mlx4_ib_demux_work, work);
struct mlx4_ib_demux_work **dm = NULL;
dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC);