From 65891feac27e26115dc4cce881743a1ac33372df Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Sun, 14 Dec 2014 18:19:05 +0200 Subject: [PATCH] net: Disallow providing non zero VLAN ID for NIC drivers FDB add flow The current implementations all use dev_uc_add_excl() and such whose API doesn't support vlans, so we can't make it with NICs HW for now. Fixes: f6f6424ba773 ('net: make vid as a parameter for ndo_fdb_add/ndo_fdb_del') Signed-off-by: Or Gerlitz Reviewed-by: Jiri Pirko Acked-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/i40e/i40e_main.c | 5 +++++ net/core/rtnetlink.c | 5 +++++ 2 files changed, 10 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 0a7ea4c5f9d3..a5f2660d552d 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -7549,6 +7549,11 @@ static int i40e_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], if (!(pf->flags & I40E_FLAG_SRIOV_ENABLED)) return -EOPNOTSUPP; + if (vid) { + pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev->name); + return -EINVAL; + } + /* Hardware does not support aging addresses so if a * ndm_state is given only allow permanent addresses */ diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index d06107d36ec8..9cf6fe9ddc0c 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -2368,6 +2368,11 @@ int ndo_dflt_fdb_add(struct ndmsg *ndm, return err; } + if (vid) { + pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev->name); + return err; + } + if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) err = dev_uc_add_excl(dev, addr); else if (is_multicast_ether_addr(addr)) -- 2.20.1