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Mon, 26 Feb 2024 01:11:32 -0700 Received: from HYD-DK-UNGSW21.microchip.com (10.10.85.11) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Mon, 26 Feb 2024 01:11:29 -0700 From: Raju Lakkaraju To: CC: , , , , , Subject: [PATCH net 2/3] net: lan743x: support WOL in MAC even when PHY does not Date: Mon, 26 Feb 2024 13:39:33 +0530 Message-ID: <20240226080934.46003-3-Raju.Lakkaraju@microchip.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240226080934.46003-1-Raju.Lakkaraju@microchip.com> References: <20240226080934.46003-1-Raju.Lakkaraju@microchip.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791948417091046352 X-GMAIL-MSGID: 1791948417091046352 Allow WOL support if MAC supports it, even if the PHY does not support it Fixes: e9e13b6adc338 ("lan743x: fix for potential NULL pointer dereference with bare card") Signed-off-by: Raju Lakkaraju --- drivers/net/ethernet/microchip/lan743x_ethtool.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/microchip/lan743x_ethtool.c b/drivers/net/ethernet/microchip/lan743x_ethtool.c index a2b3f4433ca8..4899582b3d1d 100644 --- a/drivers/net/ethernet/microchip/lan743x_ethtool.c +++ b/drivers/net/ethernet/microchip/lan743x_ethtool.c @@ -1163,6 +1163,17 @@ static int lan743x_ethtool_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) { struct lan743x_adapter *adapter = netdev_priv(netdev); + int ret; + + if (netdev->phydev) { + ret = phy_ethtool_set_wol(netdev->phydev, wol); + if (ret != -EOPNOTSUPP && ret != 0) + return ret; + + if (ret == -EOPNOTSUPP) + netif_info(adapter, drv, adapter->netdev, + "phy does not support WOL\n"); + } adapter->wolopts = 0; if (wol->wolopts & WAKE_UCAST) @@ -1187,8 +1198,7 @@ static int lan743x_ethtool_set_wol(struct net_device *netdev, device_set_wakeup_enable(&adapter->pdev->dev, (bool)wol->wolopts); - return netdev->phydev ? phy_ethtool_set_wol(netdev->phydev, wol) - : -ENETDOWN; + return 0; } #endif /* CONFIG_PM */