From: Fernando Fernandez Mancera ffmancera@riseup.net
[ Upstream commit cf754ae331be7cc192b951756a1dd031e9ed978a ]
When dumping the ethtool information from all the interfaces, the netlink reply should contain the NLM_F_MULTI flag. This flag allows userspace tools to identify that multiple messages are expected.
Link: https://bugzilla.redhat.com/1953847 Fixes: 365f9ae4ee36 ("ethtool: fix genlmsg_put() failure handling in ethnl_default_dumpit()") Signed-off-by: Fernando Fernandez Mancera ffmancera@riseup.net Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/ethtool/netlink.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c index 50d3c8896f91..25a55086d2b6 100644 --- a/net/ethtool/netlink.c +++ b/net/ethtool/netlink.c @@ -384,7 +384,8 @@ static int ethnl_default_dump_one(struct sk_buff *skb, struct net_device *dev, int ret;
ehdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, - ðtool_genl_family, 0, ctx->ops->reply_cmd); + ðtool_genl_family, NLM_F_MULTI, + ctx->ops->reply_cmd); if (!ehdr) return -EMSGSIZE;