Tested-by: Yi Zhang <yi.zhang@xxxxxxxxxx> # modprobe rdma_rxe # dmesg [ 598.134022] rdma_rxe: IPv6 is disabled by ipv6.disable=1 in cmdline [ 598.134026] rdma_rxe: loaded On 2/28/21 5:23 PM, Leon Romanovsky wrote:
On Sat, Feb 27, 2021 at 11:32:35PM +0800, Zhu Yanjun wrote:From 9dcdd09f3ca3cf222b563866acd91d18bc4b93d4 Mon Sep 17 00:00:00 2001 From: Zhu Yanjun <zyjzyj2000@xxxxxxxxx> Date: Sat, 27 Feb 2021 23:01:15 +0000 Subject: [PATCH 1/1] RDMA/rxe: Disable ipv6 features when ipv6.disable set in cmdline When ipv6.disable=1 is set in cmdline, ipv6 is actually disabled in the stack. As such, the operations of ipv6 in RXE will fail. So ipv6 features in RXE should also be disabled in RXE. Reported-by: Yi Zhang <yi.zhang@xxxxxxxxxx> Signed-off-by: Zhu Yanjun <zyjzyj2000@xxxxxxxxx> --- drivers/infiniband/sw/rxe/rxe_net.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rxe/rxe_net.c index 0701bd1ffd1a..6ef092cb575e 100644 --- a/drivers/infiniband/sw/rxe/rxe_net.c +++ b/drivers/infiniband/sw/rxe/rxe_net.c @@ -72,6 +72,11 @@ static struct dst_entry *rxe_find_route6(struct net_device *ndev, struct dst_entry *ndst; struct flowi6 fl6 = { { 0 } }; + if (!ipv6_mod_enabled()) { + pr_info("IPv6 is disabled by ipv6.disable=1 in cmdline"); + return NULL; + } +Except the info message, the change looks valid. pr_info("IPv6 is disabled by ipv6.disable=1 in cmdline"); -> pr_info("IPv6 is disabled"); Thanks, Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxx>
