netdev - [PATCH RFC net-next 3/4] net: mtk_eth_soc: remove unnecessary checks in mtk_mac

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Message-Id: <E1pVXJF-00CTAf-Qu@rmk-PC.armlinux.org.uk>
Date:   Fri, 24 Feb 2023 12:36:21 +0000
From:   "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To:     Daniel Golle <daniel@...rotopia.org>,
        Daniel Golle <daniel@...rotopia.org>
Cc:     Felix Fietkau <nbd@....name>, John Crispin <john@...ozen.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH RFC net-next 3/4] net: mtk_eth_soc: remove unnecessary checks
 in mtk_mac_config()

mtk_mac_config() checks that the interface mode is permitted for the
capabilities, but we already do these checks in mtk_add_mac() when
initialising phylink's supported_interfaces bitmap. Remove the
unnecessary tests.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 1b385dfe620f..f78810717f66 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -458,12 +458,6 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode,
 		/* Setup soc pin functions */
 		switch (state->interface) {
 		case PHY_INTERFACE_MODE_TRGMII:
-			if (mac->id)
-				goto err_phy;
-			if (!MTK_HAS_CAPS(mac->hw->soc->caps,
-					  MTK_GMAC1_TRGMII))
-				goto err_phy;
-			fallthrough;
 		case PHY_INTERFACE_MODE_RGMII_TXID:
 		case PHY_INTERFACE_MODE_RGMII_RXID:
 		case PHY_INTERFACE_MODE_RGMII_ID:
@@ -480,11 +474,9 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode,
 		case PHY_INTERFACE_MODE_1000BASEX:
 		case PHY_INTERFACE_MODE_2500BASEX:
 		case PHY_INTERFACE_MODE_SGMII:
-			if (MTK_HAS_CAPS(eth->soc->caps, MTK_SGMII)) {
-				err = mtk_gmac_sgmii_path_setup(eth, mac->id);
-				if (err)
-					goto init_err;
-			}
+			err = mtk_gmac_sgmii_path_setup(eth, mac->id);
+			if (err)
+				goto init_err;
 			break;
 		case PHY_INTERFACE_MODE_GMII:
 			if (MTK_HAS_CAPS(eth->soc->caps, MTK_GEPHY)) {
-- 
2.30.2