5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Daniel Golle daniel@makrotopia.org
[ Upstream commit 497041d763016c2e8314d2f6a329a9b77c3797ca ]
MT7531 standalone and MMIO variants found in MT7988 and EN7581 share most basic properties. Despite that, assisted_learning_on_cpu_port and mtu_enforcement_ingress were only applied for MT7531 but not for MT7988 or EN7581, causing the expected issues on MMIO devices.
Apply both settings equally also for MT7988 and EN7581 by moving both assignments form mt7531_setup() to mt7531_setup_common().
This fixes unwanted flooding of packets due to unknown unicast during DA lookup, as well as issues with heterogenous MTU settings.
Fixes: 7f54cc9772ce ("net: dsa: mt7530: split-off common parts from mt7531_setup") Signed-off-by: Daniel Golle daniel@makrotopia.org Reviewed-by: Chester A. Unal chester.a.unal@arinc9.com Link: https://patch.msgid.link/89ed7ec6d4fa0395ac53ad2809742bb1ce61ed12.1745290867... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/dsa/mt7530.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 86db6a18c8377..abd61514d3361 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -2534,6 +2534,9 @@ mt7531_setup_common(struct dsa_switch *ds) struct mt7530_priv *priv = ds->priv; int ret, i;
+ ds->assisted_learning_on_cpu_port = true; + ds->mtu_enforcement_ingress = true; + mt753x_trap_frames(priv);
/* Enable and reset MIB counters */ @@ -2673,9 +2676,6 @@ mt7531_setup(struct dsa_switch *ds) if (ret) return ret;
- ds->assisted_learning_on_cpu_port = true; - ds->mtu_enforcement_ingress = true; - return 0; }