[PATCH net-next] net: stmmac: avoid passing pci_dev

["Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>]

The pci_dev is only used to provide the ethtool bus_info using
pci_name(priv->plat->pdev). This is the same as dev_name(priv->device).
Thus, rather than passing the pci_dev, make use of what we already
have.

To avoid unexpectedly exposing the device name through ethtool where
it wasn't provided before, add a flag priv->plat->provide_bus_info
to enable this, which only dwmac-intel needs to set.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c    | 2 +-
 drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 5 ++---
 include/linux/stmmac.h                               | 2 +-
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index 421c6c81ca5e..f621077c30a4 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -589,7 +589,7 @@ static int intel_mgbe_common_data(struct pci_dev *pdev,
 	int ret;
 	int i;
 
-	plat->pdev = pdev;
+	plat->provide_bus_info = true;
 	plat->phy_addr = -1;
 	plat->clk_csr = STMMAC_CSR_250_300M;
 	plat->core_type = DWMAC_CORE_GMAC4;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index c1e26965d9b5..92585d27ab88 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -312,10 +312,9 @@ static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
 		strscpy(info->driver, MAC100_ETHTOOL_NAME,
 			sizeof(info->driver));
 
-	if (priv->plat->pdev) {
-		strscpy(info->bus_info, pci_name(priv->plat->pdev),
+	if (priv->plat->provide_bus_info)
+		strscpy(info->bus_info, dev_name(priv->device),
 			sizeof(info->bus_info));
-	}
 }
 
 static int stmmac_ethtool_get_link_ksettings(struct net_device *dev,
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 937985276e6b..72febd246bdb 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -348,7 +348,7 @@ struct plat_stmmacenet_data {
 	int rss_en;
 	int mac_port_sel_speed;
 	u8 vlan_fail_q;
-	struct pci_dev *pdev;
+	bool provide_bus_info;
 	int int_snapshot_num;
 	int msi_mac_vec;
 	int msi_wol_vec;
-- 
2.47.3