On Fri, Sep 30, 2022 at 04:09:30PM -0400, Sean Anderson wrote:

+static void memac_validate(struct phylink_config *config,
+			   unsigned long *supported,
+			   struct phylink_link_state *state)
+{
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
+	struct fman_mac *memac = fman_config_to_mac(config)->fman_mac;
+
+	phylink_generic_validate(config, supported, state);
+
+	if (phy_interface_mode_is_rgmii(state->interface) &&
+	    memac->rgmii_no_half_duplex) {
+		phylink_caps_to_linkmodes(mask, MAC_10HD | MAC_100HD);
+		linkmode_andnot(supported, supported, mask);
+		linkmode_andnot(state->advertising, state->advertising, mask);
+	}
+}

Having been through the rest of this with a fine tooth comb, nothing
else stands out with the exception of the above, which I think could
be done better with this patch:

http://git.armlinux.org.uk/cgit/linux-arm.git/commit/?h=net-queue&id=e65a47c4053255bd51715d5550e21c869971258c

Since the above would become:

static void memac_validate(struct phylink_config *config,
			   unsigned long *supported,
			   struct phylink_link_state *state)
{
	struct mac_device *mac_dev = fman_config_to_mac(config);
	struct fman_mac *memac = mac_dev->fman_mac;
	unsigned long caps;

	caps = mac_dev->phylink_config.capabilities;

	if (phy_interface_mode_is_rgmii(state->interface) &&
	    memac->rgmii_no_half_duplex)
		caps &= ~(MAC_10HD | MAC_100HD);

	phylink_validate_mask_caps(supported, state, caps);
}

If you want to pick up my patch that adds this helper into your series,
please do.

-- 
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