From b45b773a96b0e9e8d51e5d005485f4e376d6ce9a Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 4 Nov 2022 17:13:01 +0000
Subject: [PATCH 07/21] net: remove explicit phylink_generic_validate()
 references

Virtually all conventional network drivers are now converted to use
phylink_generic_validate() - only DSA drivers and fman_memac remain,
so lets remove the necessity for network drivers to explicitly set
this member, and default to phylink_generic_validate() when unset.
This is possible as .validate must currently be set.

Any remaining instances that have not been addressed by this patch can
be fixed up later.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/E1or0FZ-001tRa-DI@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 drivers/net/ethernet/altera/altera_tse_main.c            | 1 -
 drivers/net/ethernet/atheros/ag71xx.c                    | 1 -
 drivers/net/ethernet/cadence/macb_main.c                 | 1 -
 drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c         | 1 -
 drivers/net/ethernet/freescale/enetc/enetc_pf.c          | 1 -
 drivers/net/ethernet/freescale/fman/fman_dtsec.c         | 1 -
 drivers/net/ethernet/freescale/fman/fman_tgec.c          | 1 -
 drivers/net/ethernet/marvell/mvneta.c                    | 1 -
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c          | 1 -
 drivers/net/ethernet/marvell/prestera/prestera_main.c    | 1 -
 drivers/net/ethernet/mediatek/mtk_eth_soc.c              | 1 -
 drivers/net/ethernet/microchip/lan966x/lan966x_phylink.c | 1 -
 drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c   | 1 -
 drivers/net/ethernet/mscc/ocelot_net.c                   | 1 -
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c        | 1 -
 drivers/net/ethernet/ti/am65-cpsw-nuss.c                 | 1 -
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c        | 1 -
 drivers/net/phy/phylink.c                                | 5 ++++-
 drivers/net/usb/asix_devices.c                           | 1 -
 include/linux/phylink.h                                  | 5 +++++
 20 files changed, 9 insertions(+), 19 deletions(-)

--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -1096,7 +1096,6 @@ static struct phylink_pcs *alt_tse_selec
 }
 
 static const struct phylink_mac_ops alt_tse_phylink_ops = {
-	.validate = phylink_generic_validate,
 	.mac_an_restart = alt_tse_mac_an_restart,
 	.mac_config = alt_tse_mac_config,
 	.mac_link_down = alt_tse_mac_link_down,
--- a/drivers/net/ethernet/atheros/ag71xx.c
+++ b/drivers/net/ethernet/atheros/ag71xx.c
@@ -1086,7 +1086,6 @@ static void ag71xx_mac_link_up(struct ph
 }
 
 static const struct phylink_mac_ops ag71xx_phylink_mac_ops = {
-	.validate = phylink_generic_validate,
 	.mac_config = ag71xx_mac_config,
 	.mac_link_down = ag71xx_mac_link_down,
 	.mac_link_up = ag71xx_mac_link_up,
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -752,7 +752,6 @@ static struct phylink_pcs *macb_mac_sele
 }
 
 static const struct phylink_mac_ops macb_phylink_ops = {
-	.validate = phylink_generic_validate,
 	.mac_select_pcs = macb_mac_select_pcs,
 	.mac_config = macb_mac_config,
 	.mac_link_down = macb_mac_link_down,
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
@@ -235,7 +235,6 @@ static void dpaa2_mac_link_down(struct p
 }
 
 static const struct phylink_mac_ops dpaa2_mac_phylink_ops = {
-	.validate = phylink_generic_validate,
 	.mac_select_pcs = dpaa2_mac_select_pcs,
 	.mac_config = dpaa2_mac_config,
 	.mac_link_up = dpaa2_mac_link_up,
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
@@ -1111,7 +1111,6 @@ static void enetc_pl_mac_link_down(struc
 }
 
 static const struct phylink_mac_ops enetc_mac_phylink_ops = {
-	.validate = phylink_generic_validate,
 	.mac_select_pcs = enetc_pl_mac_select_pcs,
 	.mac_config = enetc_pl_mac_config,
 	.mac_link_up = enetc_pl_mac_link_up,
--- a/drivers/net/ethernet/freescale/fman/fman_dtsec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
@@ -986,7 +986,6 @@ static void dtsec_link_down(struct phyli
 }
 
 static const struct phylink_mac_ops dtsec_mac_ops = {
-	.validate = phylink_generic_validate,
 	.mac_select_pcs = dtsec_select_pcs,
 	.mac_config = dtsec_mac_config,
 	.mac_link_up = dtsec_link_up,
--- a/drivers/net/ethernet/freescale/fman/fman_tgec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_tgec.c
@@ -469,7 +469,6 @@ static void tgec_link_down(struct phylin
 }
 
 static const struct phylink_mac_ops tgec_mac_ops = {
-	.validate = phylink_generic_validate,
 	.mac_config = tgec_mac_config,
 	.mac_link_up = tgec_link_up,
 	.mac_link_down = tgec_link_down,
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -4228,7 +4228,6 @@ static void mvneta_mac_link_up(struct ph
 }
 
 static const struct phylink_mac_ops mvneta_phylink_ops = {
-	.validate = phylink_generic_validate,
 	.mac_select_pcs = mvneta_mac_select_pcs,
 	.mac_prepare = mvneta_mac_prepare,
 	.mac_config = mvneta_mac_config,
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -6633,7 +6633,6 @@ static void mvpp2_mac_link_down(struct p
 }
 
 static const struct phylink_mac_ops mvpp2_phylink_ops = {
-	.validate = phylink_generic_validate,
 	.mac_select_pcs = mvpp2_select_pcs,
 	.mac_prepare = mvpp2_mac_prepare,
 	.mac_config = mvpp2_mac_config,
--- a/drivers/net/ethernet/marvell/prestera/prestera_main.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
@@ -360,7 +360,6 @@ static void prestera_pcs_an_restart(stru
 }
 
 static const struct phylink_mac_ops prestera_mac_ops = {
-	.validate = phylink_generic_validate,
 	.mac_select_pcs = prestera_mac_select_pcs,
 	.mac_config = prestera_mac_config,
 	.mac_link_down = prestera_mac_link_down,
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -654,7 +654,6 @@ static void mtk_mac_link_up(struct phyli
 }
 
 static const struct phylink_mac_ops mtk_phylink_ops = {
-	.validate = phylink_generic_validate,
 	.mac_select_pcs = mtk_mac_select_pcs,
 	.mac_pcs_get_state = mtk_mac_pcs_get_state,
 	.mac_config = mtk_mac_config,
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_phylink.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_phylink.c
@@ -125,7 +125,6 @@ static void lan966x_pcs_aneg_restart(str
 }
 
 const struct phylink_mac_ops lan966x_phylink_mac_ops = {
-	.validate = phylink_generic_validate,
 	.mac_select_pcs = lan966x_phylink_mac_select,
 	.mac_config = lan966x_phylink_mac_config,
 	.mac_prepare = lan966x_phylink_mac_prepare,
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c
@@ -138,7 +138,6 @@ const struct phylink_pcs_ops sparx5_phyl
 };
 
 const struct phylink_mac_ops sparx5_phylink_mac_ops = {
-	.validate = phylink_generic_validate,
 	.mac_select_pcs = sparx5_phylink_mac_select_pcs,
 	.mac_config = sparx5_phylink_mac_config,
 	.mac_link_down = sparx5_phylink_mac_link_down,
--- a/drivers/net/ethernet/mscc/ocelot_net.c
+++ b/drivers/net/ethernet/mscc/ocelot_net.c
@@ -1737,7 +1737,6 @@ static void vsc7514_phylink_mac_link_up(
 }
 
 static const struct phylink_mac_ops ocelot_phylink_ops = {
-	.validate		= phylink_generic_validate,
 	.mac_config		= vsc7514_phylink_mac_config,
 	.mac_link_down		= vsc7514_phylink_mac_link_down,
 	.mac_link_up		= vsc7514_phylink_mac_link_up,
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1090,7 +1090,6 @@ static void stmmac_mac_link_up(struct ph
 }
 
 static const struct phylink_mac_ops stmmac_phylink_mac_ops = {
-	.validate = phylink_generic_validate,
 	.mac_select_pcs = stmmac_mac_select_pcs,
 	.mac_config = stmmac_mac_config,
 	.mac_link_down = stmmac_mac_link_down,
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -1493,7 +1493,6 @@ static void am65_cpsw_nuss_mac_link_up(s
 }
 
 static const struct phylink_mac_ops am65_cpsw_phylink_mac_ops = {
-	.validate = phylink_generic_validate,
 	.mac_config = am65_cpsw_nuss_mac_config,
 	.mac_link_down = am65_cpsw_nuss_mac_link_down,
 	.mac_link_up = am65_cpsw_nuss_mac_link_up,
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -1736,7 +1736,6 @@ static void axienet_mac_link_up(struct p
 }
 
 static const struct phylink_mac_ops axienet_phylink_ops = {
-	.validate = phylink_generic_validate,
 	.mac_select_pcs = axienet_mac_select_pcs,
 	.mac_config = axienet_mac_config,
 	.mac_link_down = axienet_mac_link_down,
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -651,7 +651,10 @@ static int phylink_validate_mac_and_pcs(
 	}
 
 	/* Then validate the link parameters with the MAC */
-	pl->mac_ops->validate(pl->config, supported, state);
+	if (pl->mac_ops->validate)
+		pl->mac_ops->validate(pl->config, supported, state);
+	else
+		phylink_generic_validate(pl->config, supported, state);
 
 	return phylink_is_empty_linkmode(supported) ? -EINVAL : 0;
 }
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -787,7 +787,6 @@ static void ax88772_mac_link_up(struct p
 }
 
 static const struct phylink_mac_ops ax88772_phylink_mac_ops = {
-	.validate = phylink_generic_validate,
 	.mac_config = ax88772_mac_config,
 	.mac_link_down = ax88772_mac_link_down,
 	.mac_link_up = ax88772_mac_link_up,
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -207,6 +207,11 @@ struct phylink_mac_ops {
  *
  * If the @state->interface mode is not supported, then the @supported
  * mask must be cleared.
+ *
+ * This member is optional; if not set, the generic validator will be
+ * used making use of @config->mac_capabilities and
+ * @config->supported_interfaces to determine which link modes are
+ * supported.
  */
 void validate(struct phylink_config *config, unsigned long *supported,
 	      struct phylink_link_state *state);
