From: David S. Miller Date: Thu, 24 Apr 2014 17:53:01 +0000 (-0400) Subject: Merge branch 'rtnetlink_vf_ports' X-Git-Tag: firefly_0821_release~176^2~3943^2~43 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fc5e88354de53024f61d50c7fe9b5b182fc5800d;p=firefly-linux-kernel-4.4.55.git Merge branch 'rtnetlink_vf_ports' David Gibson says: ==================== Fix problems with with IFLA_VF_PORTS (v2) I've had a customer encounter a problem with getifaddrs(3) freezing up on a system with a Cisco enic device. I've discovered that the problem is caused by an enic device with a large number of SR-IOV virtual functions overflowing the normal sized packet buffer for netlink, leading to interfaces not being reported from an RTM_GETLINK request. The first patch here just makes the problem easier to locate if it occurs again in a different way, by adding a WARN_ON() when we run out of room in a netlink packet in this manner. The second patch actually fixes the problem, by only reporting IFLA_VF_PORTS information when the RTEXT_FILTER_VF flag is specified. v2: Corrected some CodingStyle problems ==================== Signed-off-by: David S. Miller --- fc5e88354de53024f61d50c7fe9b5b182fc5800d