From: Maxim Kochetkov fido_max@inbox.ru
[ Upstream commit fb6ec87f7229b92baa81b35cbc76f2626d5bfadb ]
If PHY is not available on DSA port (described at devicetree but absent or failed to detect) then kernel prints warning after 3700 secs:
[ 3707.948771] ------------[ cut here ]------------ [ 3707.948784] Type was not set for devlink port. [ 3707.948894] WARNING: CPU: 1 PID: 17 at net/core/devlink.c:8097 0xc083f9d8
We should unregister the devlink port as a user port and re-register it as an unused port before executing "continue" in case of dsa_port_setup error.
Fixes: 86f8b1c01a0a ("net: dsa: Do not make user port errors fatal") Signed-off-by: Maxim Kochetkov fido_max@inbox.ru Reviewed-by: Vladimir Oltean olteanv@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/dsa/dsa2.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index a04fd637b4cd..3ada338d7e08 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -533,8 +533,14 @@ static int dsa_tree_setup_switches(struct dsa_switch_tree *dst)
list_for_each_entry(dp, &dst->ports, list) { err = dsa_port_setup(dp); - if (err) + if (err) { + dsa_port_devlink_teardown(dp); + dp->type = DSA_PORT_TYPE_UNUSED; + err = dsa_port_devlink_setup(dp); + if (err) + goto teardown; continue; + } }
return 0;