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ethtool: fix missing NLM_F_MULTI flag when dumping

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[ Upstream commit cf754ae331 ]

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: 365f9ae4ee ("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>
This commit is contained in:
Fernando Fernandez Mancera
2021-05-05 00:47:14 +02:00
committed by Greg Kroah-Hartman
parent 673422b97e
commit 26b7924707
1 changed files with 2 additions and 1 deletions
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3
net/ethtool/netlink.c
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@@ -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,
&ethtool_genl_family, 0, ctx->ops->reply_cmd);
&ethtool_genl_family, NLM_F_MULTI,
ctx->ops->reply_cmd);
if (!ehdr)
return -EMSGSIZE;