This is a note to let you know that I've just added the patch titled
net: dsa: Fix type was not set for devlink port
to the 5.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-dsa-fix-type-was-not-set-for-devlink-port.patch
and it can be found in the queue-5.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 86d5b8dbb8364ea9da48fcba27dcf671d129c191
Author: Maxim Kochetkov <fido_max@xxxxxxxx>
Date: Mon Mar 29 18:30:16 2021 +0300
net: dsa: Fix type was not set for devlink port
[ 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@xxxxxxxx>
Reviewed-by: Vladimir Oltean <olteanv@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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;
