From: Daniel Golle Date: Tue, 7 Apr 2026 17:30:27 +0000 (+0100) Subject: net: dsa: mxl862xx: reject DSA_PORT_TYPE_DSA X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3a4056ec7ec8f71ae9722f86d3cfbc4589deeac4;p=thirdparty%2Fkernel%2Flinux.git net: dsa: mxl862xx: reject DSA_PORT_TYPE_DSA DSA links aren't supported by the mxl862xx driver. Instead of returning early from .port_setup when called for DSA_PORT_TYPE_DSA ports rather return -EOPNOTSUPP and show an error message. The desired side-effect is that the framework will switch the port to DSA_PORT_TYPE_UNUSED, so we can stop caring about DSA_PORT_TYPE_DSA in all other places. Signed-off-by: Daniel Golle Link: https://patch.msgid.link/b686f3a22d8a6e7d470e7aa98da811a996a229b9.1775581804.git.daniel@makrotopia.org Signed-off-by: Jakub Kicinski --- diff --git a/drivers/net/dsa/mxl862xx/mxl862xx.c b/drivers/net/dsa/mxl862xx/mxl862xx.c index e4e16c720763..9a9714c4859b 100644 --- a/drivers/net/dsa/mxl862xx/mxl862xx.c +++ b/drivers/net/dsa/mxl862xx/mxl862xx.c @@ -544,10 +544,14 @@ static int mxl862xx_port_setup(struct dsa_switch *ds, int port) mxl862xx_port_fast_age(ds, port); - if (dsa_port_is_unused(dp) || - dsa_port_is_dsa(dp)) + if (dsa_port_is_unused(dp)) return 0; + if (dsa_port_is_dsa(dp)) { + dev_err(ds->dev, "port %d: DSA links not supported\n", port); + return -EOPNOTSUPP; + } + ret = mxl862xx_configure_sp_tag_proto(ds, port, is_cpu_port); if (ret) return ret; @@ -591,7 +595,7 @@ static void mxl862xx_port_teardown(struct dsa_switch *ds, int port) struct mxl862xx_priv *priv = ds->priv; struct dsa_port *dp = dsa_to_port(ds, port); - if (dsa_port_is_unused(dp) || dsa_port_is_dsa(dp)) + if (dsa_port_is_unused(dp)) return; /* Prevent deferred host_flood_work from acting on stale state.