Comment 3 for bug 1860347

From dmesg:

[ 15.807582] compat.git: mlnx_ofed/mlnx-ofa_kernel-4.0.git
[ 15.851641] mlx5_core: Unknown symbol page_pool_destroy (err 0)
[ 15.851881] mlx5_core: Unknown symbol page_pool_create (err 0)
[ 15.851950] mlx5_core: Unknown symbol page_pool_alloc_pages (err 0)
[ 15.851992] mlx5_core: Unknown symbol __page_pool_put_page (err 0)
[ 15.863838] mlx5_core: Unknown symbol page_pool_destroy (err 0)
[ 15.864080] mlx5_core: Unknown symbol page_pool_create (err 0)
[ 15.864152] mlx5_core: Unknown symbol page_pool_alloc_pages (err 0)
[ 15.864193] mlx5_core: Unknown symbol __page_pool_put_page (err 0)