mdio: Remove mdio45_ethtool_gset_npage()

The mdio45_ethtool_gset_npage() function isn't called, so let's remove
it.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Link: https://patch.msgid.link/20241112105430.438491-2-alistair@alistair23.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

2 files changed, 0 insertions, 175 deletions

diff --git a/drivers/net/mdio.c b/drivers/net/mdio.c
index e08c90ac0c6e..f67a4d4005e7 100644
--- a/drivers/net/mdio.c
+++ b/drivers/net/mdio.c
@@ -167,178 +167,6 @@ static u32 mdio45_get_an(const struct mdio_if_info *mdio, u16 addr)
 }
 
 /**
- * mdio45_ethtool_gset_npage - get settings for ETHTOOL_GSET
- * @mdio: MDIO interface
- * @ecmd: Ethtool request structure
- * @npage_adv: Modes currently advertised on next pages
- * @npage_lpa: Modes advertised by link partner on next pages
- *
- * The @ecmd parameter is expected to have been cleared before calling
- * mdio45_ethtool_gset_npage().
- *
- * Since the CSRs for auto-negotiation using next pages are not fully
- * standardised, this function does not attempt to decode them.  The
- * caller must pass them in.
- */
-void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio,
-			       struct ethtool_cmd *ecmd,
-			       u32 npage_adv, u32 npage_lpa)
-{
-	int reg;
-	u32 speed;
-
-	BUILD_BUG_ON(MDIO_SUPPORTS_C22 != ETH_MDIO_SUPPORTS_C22);
-	BUILD_BUG_ON(MDIO_SUPPORTS_C45 != ETH_MDIO_SUPPORTS_C45);
-
-	ecmd->transceiver = XCVR_INTERNAL;
-	ecmd->phy_address = mdio->prtad;
-	ecmd->mdio_support =
-		mdio->mode_support & (MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22);
-
-	reg = mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_PMAPMD,
-			      MDIO_CTRL2);
-	switch (reg & MDIO_PMA_CTRL2_TYPE) {
-	case MDIO_PMA_CTRL2_10GBT:
-	case MDIO_PMA_CTRL2_1000BT:
-	case MDIO_PMA_CTRL2_100BTX:
-	case MDIO_PMA_CTRL2_10BT:
-		ecmd->port = PORT_TP;
-		ecmd->supported = SUPPORTED_TP;
-		reg = mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_PMAPMD,
-				      MDIO_SPEED);
-		if (reg & MDIO_SPEED_10G)
-			ecmd->supported |= SUPPORTED_10000baseT_Full;
-		if (reg & MDIO_PMA_SPEED_1000)
-			ecmd->supported |= (SUPPORTED_1000baseT_Full |
-					    SUPPORTED_1000baseT_Half);
-		if (reg & MDIO_PMA_SPEED_100)
-			ecmd->supported |= (SUPPORTED_100baseT_Full |
-					    SUPPORTED_100baseT_Half);
-		if (reg & MDIO_PMA_SPEED_10)
-			ecmd->supported |= (SUPPORTED_10baseT_Full |
-					    SUPPORTED_10baseT_Half);
-		ecmd->advertising = ADVERTISED_TP;
-		break;
-
-	case MDIO_PMA_CTRL2_10GBCX4:
-		ecmd->port = PORT_OTHER;
-		ecmd->supported = 0;
-		ecmd->advertising = 0;
-		break;
-
-	case MDIO_PMA_CTRL2_10GBKX4:
-	case MDIO_PMA_CTRL2_10GBKR:
-	case MDIO_PMA_CTRL2_1000BKX:
-		ecmd->port = PORT_OTHER;
-		ecmd->supported = SUPPORTED_Backplane;
-		reg = mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_PMAPMD,
-				      MDIO_PMA_EXTABLE);
-		if (reg & MDIO_PMA_EXTABLE_10GBKX4)
-			ecmd->supported |= SUPPORTED_10000baseKX4_Full;
-		if (reg & MDIO_PMA_EXTABLE_10GBKR)
-			ecmd->supported |= SUPPORTED_10000baseKR_Full;
-		if (reg & MDIO_PMA_EXTABLE_1000BKX)
-			ecmd->supported |= SUPPORTED_1000baseKX_Full;
-		reg = mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_PMAPMD,
-				      MDIO_PMA_10GBR_FECABLE);
-		if (reg & MDIO_PMA_10GBR_FECABLE_ABLE)
-			ecmd->supported |= SUPPORTED_10000baseR_FEC;
-		ecmd->advertising = ADVERTISED_Backplane;
-		break;
-
-	/* All the other defined modes are flavours of optical */
-	default:
-		ecmd->port = PORT_FIBRE;
-		ecmd->supported = SUPPORTED_FIBRE;
-		ecmd->advertising = ADVERTISED_FIBRE;
-		break;
-	}
-
-	if (mdio->mmds & MDIO_DEVS_AN) {
-		ecmd->supported |= SUPPORTED_Autoneg;
-		reg = mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_AN,
-				      MDIO_CTRL1);
-		if (reg & MDIO_AN_CTRL1_ENABLE) {
-			ecmd->autoneg = AUTONEG_ENABLE;
-			ecmd->advertising |=
-				ADVERTISED_Autoneg |
-				mdio45_get_an(mdio, MDIO_AN_ADVERTISE) |
-				npage_adv;
-		} else {
-			ecmd->autoneg = AUTONEG_DISABLE;
-		}
-	} else {
-		ecmd->autoneg = AUTONEG_DISABLE;
-	}
-
-	if (ecmd->autoneg) {
-		u32 modes = 0;
-		int an_stat = mdio->mdio_read(mdio->dev, mdio->prtad,
-					      MDIO_MMD_AN, MDIO_STAT1);
-
-		/* If AN is complete and successful, report best common
-		 * mode, otherwise report best advertised mode. */
-		if (an_stat & MDIO_AN_STAT1_COMPLETE) {
-			ecmd->lp_advertising =
-				mdio45_get_an(mdio, MDIO_AN_LPA) | npage_lpa;
-			if (an_stat & MDIO_AN_STAT1_LPABLE)
-				ecmd->lp_advertising |= ADVERTISED_Autoneg;
-			modes = ecmd->advertising & ecmd->lp_advertising;
-		}
-		if ((modes & ~ADVERTISED_Autoneg) == 0)
-			modes = ecmd->advertising;
-
-		if (modes & (ADVERTISED_10000baseT_Full |
-			     ADVERTISED_10000baseKX4_Full |
-			     ADVERTISED_10000baseKR_Full)) {
-			speed = SPEED_10000;
-			ecmd->duplex = DUPLEX_FULL;
-		} else if (modes & (ADVERTISED_1000baseT_Full |
-				    ADVERTISED_1000baseT_Half |
-				    ADVERTISED_1000baseKX_Full)) {
-			speed = SPEED_1000;
-			ecmd->duplex = !(modes & ADVERTISED_1000baseT_Half);
-		} else if (modes & (ADVERTISED_100baseT_Full |
-				    ADVERTISED_100baseT_Half)) {
-			speed = SPEED_100;
-			ecmd->duplex = !!(modes & ADVERTISED_100baseT_Full);
-		} else {
-			speed = SPEED_10;
-			ecmd->duplex = !!(modes & ADVERTISED_10baseT_Full);
-		}
-	} else {
-		/* Report forced settings */
-		reg = mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_PMAPMD,
-				      MDIO_CTRL1);
-		speed = (((reg & MDIO_PMA_CTRL1_SPEED1000) ? 100 : 1)
-			 * ((reg & MDIO_PMA_CTRL1_SPEED100) ? 100 : 10));
-		ecmd->duplex = (reg & MDIO_CTRL1_FULLDPLX ||
-				speed == SPEED_10000);
-	}
-
-	ethtool_cmd_speed_set(ecmd, speed);
-
-	/* 10GBASE-T MDI/MDI-X */
-	if (ecmd->port == PORT_TP
-	    && (ethtool_cmd_speed(ecmd) == SPEED_10000)) {
-		switch (mdio->mdio_read(mdio->dev, mdio->prtad, MDIO_MMD_PMAPMD,
-					MDIO_PMA_10GBT_SWAPPOL)) {
-		case MDIO_PMA_10GBT_SWAPPOL_ABNX | MDIO_PMA_10GBT_SWAPPOL_CDNX:
-			ecmd->eth_tp_mdix = ETH_TP_MDI;
-			break;
-		case 0:
-			ecmd->eth_tp_mdix = ETH_TP_MDI_X;
-			break;
-		default:
-			/* It's complicated... */
-			ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
-			break;
-		}
-	}
-}
-EXPORT_SYMBOL(mdio45_ethtool_gset_npage);
-
-/**
  * mdio45_ethtool_ksettings_get_npage - get settings for ETHTOOL_GLINKSETTINGS
  * @mdio: MDIO interface
  * @cmd: Ethtool request structure
diff --git a/include/linux/mdio.h b/include/linux/mdio.h
index c63f43645d50..3c3deac57894 100644
--- a/include/linux/mdio.h
+++ b/include/linux/mdio.h
@@ -165,9 +165,6 @@ extern int mdio_set_flag(const struct mdio_if_info *mdio,
 			 bool sense);
 extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds);
 extern int mdio45_nway_restart(const struct mdio_if_info *mdio);
-extern void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio,
-				      struct ethtool_cmd *ecmd,
-				      u32 npage_adv, u32 npage_lpa);
 extern void
 mdio45_ethtool_ksettings_get_npage(const struct mdio_if_info *mdio,
 				   struct ethtool_link_ksettings *cmd,