netdev - [PATCH v7 net 2/4] net: axienet: factor out phy_node in struct axienet

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20220329024921.2739338-3-andy.chiu@sifive.com>
Date:   Tue, 29 Mar 2022 10:49:19 +0800
From:   Andy Chiu <andy.chiu@...ive.com>
To:     kuba@...nel.org, radhey.shyam.pandey@...inx.com,
        robert.hancock@...ian.com, michal.simek@...inx.com, andrew@...n.ch
Cc:     davem@...emloft.net, pabeni@...hat.com, robh+dt@...nel.org,
        linux@...linux.org.uk, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, robh@...nel.org,
        Andy Chiu <andy.chiu@...ive.com>,
        Greentime Hu <greentime.hu@...ive.com>
Subject: [PATCH v7 net 2/4] net: axienet: factor out phy_node in struct axienet_local

the struct member `phy_node` of struct axienet_local is not used by the
driver anymore after initialization. It might be a remnent of old code
and could be removed.

Signed-off-by: Andy Chiu <andy.chiu@...ive.com>
Reviewed-by: Greentime Hu <greentime.hu@...ive.com>
Reviewed-by: Robert Hancock <robert.hancock@...ian.com>
---
 drivers/net/ethernet/xilinx/xilinx_axienet.h      |  2 --
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 13 +++++--------
 2 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet.h b/drivers/net/ethernet/xilinx/xilinx_axienet.h
index 0f9c88dd1a4a..d5c1e5c4a508 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet.h
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet.h
@@ -433,8 +433,6 @@ struct axienet_local {
 	struct net_device *ndev;
 	struct device *dev;
 
-	struct device_node *phy_node;
-
 	struct phylink *phylink;
 	struct phylink_config phylink_config;
 
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 78a991bbbcf9..3daef64a85bd 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -2071,17 +2071,19 @@ static int axienet_probe(struct platform_device *pdev)
 
 	if (lp->phy_mode == PHY_INTERFACE_MODE_SGMII ||
 	    lp->phy_mode == PHY_INTERFACE_MODE_1000BASEX) {
-		lp->phy_node = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
-		if (!lp->phy_node) {
+		np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
+		if (!np) {
 			dev_err(&pdev->dev, "phy-handle required for 1000BaseX/SGMII\n");
 			ret = -EINVAL;
 			goto cleanup_mdio;
 		}
-		lp->pcs_phy = of_mdio_find_device(lp->phy_node);
+		lp->pcs_phy = of_mdio_find_device(np);
 		if (!lp->pcs_phy) {
 			ret = -EPROBE_DEFER;
+			of_node_put(np);
 			goto cleanup_mdio;
 		}
+		of_node_put(np);
 		lp->pcs.ops = &axienet_pcs_ops;
 		lp->pcs.poll = true;
 	}
@@ -2124,8 +2126,6 @@ static int axienet_probe(struct platform_device *pdev)
 		put_device(&lp->pcs_phy->dev);
 	if (lp->mii_bus)
 		axienet_mdio_teardown(lp);
-	of_node_put(lp->phy_node);
-
 cleanup_clk:
 	clk_bulk_disable_unprepare(XAE_NUM_MISC_CLOCKS, lp->misc_clks);
 	clk_disable_unprepare(lp->axi_clk);
@@ -2154,9 +2154,6 @@ static int axienet_remove(struct platform_device *pdev)
 	clk_bulk_disable_unprepare(XAE_NUM_MISC_CLOCKS, lp->misc_clks);
 	clk_disable_unprepare(lp->axi_clk);
 
-	of_node_put(lp->phy_node);
-	lp->phy_node = NULL;
-
 	free_netdev(ndev);
 
 	return 0;
-- 
2.34.1