From 563c4ba3bd2b8b0b21c65669ec2226b1cfa1138b Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Tue, 13 Mar 2018 16:06:14 +0200 Subject: IB/core: Honor port_num while resolving GID for IB link layer ah_attr contains the port number to which cm_id is bound. However, while searching for GID table for matching GID entry, the port number is ignored. This could cause the wrong GID to be used when the ah_attr is converted to an AH. Reviewed-by: Daniel Jurgens Signed-off-by: Parav Pandit Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/multicast.c | 26 ++++++++++++-------------- 1 file changed, 12 insertions(+), 14 deletions(-) (limited to 'drivers/infiniband/core/multicast.c') diff --git a/drivers/infiniband/core/multicast.c b/drivers/infiniband/core/multicast.c index 45f2f095f793..4eb72ff539fc 100644 --- a/drivers/infiniband/core/multicast.c +++ b/drivers/infiniband/core/multicast.c @@ -724,21 +724,19 @@ int ib_init_ah_from_mcmember(struct ib_device *device, u8 port_num, { int ret; u16 gid_index; - u8 p; - - if (rdma_protocol_roce(device, port_num)) { - ret = ib_find_cached_gid_by_port(device, &rec->port_gid, - gid_type, port_num, - ndev, - &gid_index); - } else if (rdma_protocol_ib(device, port_num)) { - ret = ib_find_cached_gid(device, &rec->port_gid, - IB_GID_TYPE_IB, NULL, &p, - &gid_index); - } else { - ret = -EINVAL; - } + /* GID table is not based on the netdevice for IB link layer, + * so ignore ndev during search. + */ + if (rdma_protocol_ib(device, port_num)) + ndev = NULL; + else if (!rdma_protocol_roce(device, port_num)) + return -EINVAL; + + ret = ib_find_cached_gid_by_port(device, &rec->port_gid, + gid_type, port_num, + ndev, + &gid_index); if (ret) return ret; -- cgit v1.2.3-59-g8ed1b