openvswitch: switch from WARN to pr_warn

[ Upstream commit fd954cc1919e35cb92f78671cab6e42d661945a3 ]

As noted by Paolo Abeni, pr_warn doesn't generate any splat and can still
preserve the warning to the user that feature downgrade occurred.  We
likely cannot introduce other kinds of checks / enforcement here because
syzbot can generate different genl versions to the datapath.

Reported-by: [email protected]
Fixes: 44da5ae5fb ("openvswitch: Drop user features if old user space attempted to create datapath")
Cc: Thomas Graf <[email protected]>
Signed-off-by: Aaron Conole <[email protected]>
Acked-by: Ilya Maximets <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Aaron Conole 2022-10-25 06:50:17 -04:00 • committed by Greg Kroah-Hartman
commit 4175d6381f

View file

@ -1560,7 +1560,8 @@ static void ovs_dp_reset_user_features(struct sk_buff *skb, struct genl_info *in
if (IS_ERR(dp))
return;
WARN(dp->user_features, "Dropping previously announced user features\n");
pr_warn("%s: Dropping previously announced user features\n",
ovs_dp_name(dp));
dp->user_features = 0;
}