We have drivers for both rtl8365mb and rtl8366rb and each uses a different tagger. realtek-dsa didn't know that and caused a reference to an unavailable symbol when one of them was disabled. Add IS_ENABLED() guards to fix this. Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> --- drivers/net/realtek-dsa/tagger.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/net/realtek-dsa/tagger.c b/drivers/net/realtek-dsa/tagger.c index 1d4461aebcb8..3a41f3b3c1b4 100644 --- a/drivers/net/realtek-dsa/tagger.c +++ b/drivers/net/realtek-dsa/tagger.c @@ -4,7 +4,7 @@ int realtek_dsa_init_tagger(struct realtek_priv *priv) { - const struct dsa_device_ops *tagger_ops; + const struct dsa_device_ops *tagger_ops = NULL; struct dsa_switch_ops *ops; /* TODO: Tagging can be configured per port in Linux. barebox DSA core @@ -14,18 +14,24 @@ int realtek_dsa_init_tagger(struct realtek_priv *priv) */ switch (priv->ops->get_tag_protocol(priv)) { case DSA_TAG_PROTO_RTL4_A: - tagger_ops = &rtl4a_netdev_ops; + if (IS_ENABLED(CONFIG_NET_DSA_TAG_RTL4_A)) + tagger_ops = &rtl4a_netdev_ops; break; case DSA_TAG_PROTO_RTL8_4: - tagger_ops = &rtl8_4_netdev_ops; + if (IS_ENABLED(CONFIG_NET_DSA_TAG_RTL8_4)) + tagger_ops = &rtl8_4_netdev_ops; break; case DSA_TAG_PROTO_RTL8_4T: - tagger_ops = &rtl8_4t_netdev_ops; + if (IS_ENABLED(CONFIG_NET_DSA_TAG_RTL8_4)) + tagger_ops = &rtl8_4t_netdev_ops; break; default: - return -EINVAL; + break; } + if (!tagger_ops) + return -EINVAL; + ops = memdup(priv->ds->ops, sizeof(*priv->ds->ops)); ops->xmit = tagger_ops->xmit; ops->rcv = tagger_ops->rcv; -- 2.30.2