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authorRussell King (Oracle) <rmk+kernel@armlinux.org.uk>2025-04-17 18:13:12 +0100
committerJakub Kicinski <kuba@kernel.org>2025-04-21 18:47:56 -0700
commit9276bfc2df92c6c45a963dea34d8c83656987ea7 (patch)
tree16db8036e87796a09801be356a0d83f128185ee6
parentMerge branch 'net-adopting-nlmsg_payload-final-series' (diff)
downloadwireguard-linux-9276bfc2df92c6c45a963dea34d8c83656987ea7.tar.xz
wireguard-linux-9276bfc2df92c6c45a963dea34d8c83656987ea7.zip
net: stmmac: socfpga: init dwmac->stmmac_rst before registration
Initialisation/setup after registration is a bug. This is the first of two patches fixing this in socfpga. dwmac->stmmac_rst is initialised from the stmmac plat_dat's stmmac_rst member, which is itself initialised by devm_stmmac_probe_config_dt(). Therefore, this can be initialised before we call stmmac_dvr_probe(). Move it there. dwmac->stmmac_rst is used by the set_phy_mode() method. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Link: https://patch.msgid.link/E1u5SnY-001IJY-90@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c17
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index 116855658559..bcdb25ee2a33 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -442,8 +442,6 @@ static int socfpga_dwmac_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
int ret;
struct socfpga_dwmac *dwmac;
- struct net_device *ndev;
- struct stmmac_priv *stpriv;
const struct socfpga_dwmac_ops *ops;
ops = device_get_match_data(&pdev->dev);
@@ -479,7 +477,13 @@ static int socfpga_dwmac_probe(struct platform_device *pdev)
return ret;
}
+ /* The socfpga driver needs to control the stmmac reset to set the phy
+ * mode. Create a copy of the core reset handle so it can be used by
+ * the driver later.
+ */
+ dwmac->stmmac_rst = plat_dat->stmmac_rst;
dwmac->ops = ops;
+
plat_dat->bsp_priv = dwmac;
plat_dat->fix_mac_speed = socfpga_dwmac_fix_mac_speed;
plat_dat->pcs_init = socfpga_dwmac_pcs_init;
@@ -493,15 +497,6 @@ static int socfpga_dwmac_probe(struct platform_device *pdev)
if (ret)
return ret;
- ndev = platform_get_drvdata(pdev);
- stpriv = netdev_priv(ndev);
-
- /* The socfpga driver needs to control the stmmac reset to set the phy
- * mode. Create a copy of the core reset handle so it can be used by
- * the driver later.
- */
- dwmac->stmmac_rst = stpriv->plat->stmmac_rst;
-
ret = ops->set_phy_mode(dwmac);
if (ret)
goto err_dvr_remove;