On Tue, Jun 1, 2021 at 1:58 PM Kamal Heib <kamalheib1@xxxxxxxxx> wrote: > > To avoid the following failure when trying to load the rdma_rxe module > while IPv6 is disabled, Add a check to make sure that IPv6 is enabled > before trying to create the IPv6 UDP tunnel. > > $ modprobe rdma_rxe > modprobe: ERROR: could not insert 'rdma_rxe': Operation not permitted About this problem, this link: https://patchwork.kernel.org/project/linux-rdma/patch/20210413234252.12209-1-yanjun.zhu@xxxxxxxxx/ also tries to solve ipv6 problem. Zhu Yanjun > > Fixes: dfdd6158ca2c ("IB/rxe: Fix kernel panic in udp_setup_tunnel") > Signed-off-by: Kamal Heib <kamalheib1@xxxxxxxxx> > --- > drivers/infiniband/sw/rxe/rxe_net.c | 14 ++++++++------ > 1 file changed, 8 insertions(+), 6 deletions(-) > > diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rxe/rxe_net.c > index 01662727dca0..f353fc18769f 100644 > --- a/drivers/infiniband/sw/rxe/rxe_net.c > +++ b/drivers/infiniband/sw/rxe/rxe_net.c > @@ -617,12 +617,14 @@ static int rxe_net_ipv6_init(void) > { > #if IS_ENABLED(CONFIG_IPV6) > > - recv_sockets.sk6 = rxe_setup_udp_tunnel(&init_net, > - htons(ROCE_V2_UDP_DPORT), true); > - if (IS_ERR(recv_sockets.sk6)) { > - recv_sockets.sk6 = NULL; > - pr_err("Failed to create IPv6 UDP tunnel\n"); > - return -1; > + if (ipv6_mod_enabled()) { > + recv_sockets.sk6 = rxe_setup_udp_tunnel(&init_net, > + htons(ROCE_V2_UDP_DPORT), true); > + if (IS_ERR(recv_sockets.sk6)) { > + recv_sockets.sk6 = NULL; > + pr_err("Failed to create IPv6 UDP tunnel\n"); > + return -1; > + } > } > #endif > return 0; > -- > 2.26.3 >
