From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
To: Andrew Lunn <andrew@lunn.ch>, Heiner Kallweit <hkallweit1@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-stm32@st-md-mailman.stormreply.com,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
netdev@vger.kernel.org, Paolo Abeni <pabeni@redhat.com>
Subject: [PATCH net-next] net: stmmac: mdio: use netdev_priv() directly
Date: Wed, 27 Aug 2025 09:41:48 +0100 [thread overview]
Message-ID: <E1urBj2-000000002as-0pod@rmk-PC.armlinux.org.uk> (raw)
netdev_priv() is an inline function, taking a struct net_device
pointer. When passing in the MII bus->priv, which is a void pointer,
there is no need to go via a local ndev variable to type it first.
Thus, instead of:
struct net_device *ndev = bus->priv;
struct stmmac_priv *priv;
...
priv = netdev_priv(ndev);
we can simply do:
struct stmmac_priv *priv = netdev_priv(bus->priv);
which simplifies the code.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
.../net/ethernet/stmicro/stmmac/stmmac_mdio.c | 38 +++++--------------
1 file changed, 10 insertions(+), 28 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index 836f2848dfeb..86021e6b67b2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -131,12 +131,9 @@ static int stmmac_xgmac2_mdio_read(struct stmmac_priv *priv, u32 addr,
static int stmmac_xgmac2_mdio_read_c22(struct mii_bus *bus, int phyaddr,
int phyreg)
{
- struct net_device *ndev = bus->priv;
- struct stmmac_priv *priv;
+ struct stmmac_priv *priv = netdev_priv(bus->priv);
u32 addr;
- priv = netdev_priv(ndev);
-
/* Until ver 2.20 XGMAC does not support C22 addr >= 4 */
if (priv->synopsys_id < DWXGMAC_CORE_2_20 &&
phyaddr > MII_XGMAC_MAX_C22ADDR)
@@ -150,12 +147,9 @@ static int stmmac_xgmac2_mdio_read_c22(struct mii_bus *bus, int phyaddr,
static int stmmac_xgmac2_mdio_read_c45(struct mii_bus *bus, int phyaddr,
int devad, int phyreg)
{
- struct net_device *ndev = bus->priv;
- struct stmmac_priv *priv;
+ struct stmmac_priv *priv = netdev_priv(bus->priv);
u32 addr;
- priv = netdev_priv(ndev);
-
stmmac_xgmac2_c45_format(priv, phyaddr, devad, phyreg, &addr);
return stmmac_xgmac2_mdio_read(priv, addr, MII_XGMAC_BUSY);
@@ -209,12 +203,9 @@ static int stmmac_xgmac2_mdio_write(struct stmmac_priv *priv, u32 addr,
static int stmmac_xgmac2_mdio_write_c22(struct mii_bus *bus, int phyaddr,
int phyreg, u16 phydata)
{
- struct net_device *ndev = bus->priv;
- struct stmmac_priv *priv;
+ struct stmmac_priv *priv = netdev_priv(bus->priv);
u32 addr;
- priv = netdev_priv(ndev);
-
/* Until ver 2.20 XGMAC does not support C22 addr >= 4 */
if (priv->synopsys_id < DWXGMAC_CORE_2_20 &&
phyaddr > MII_XGMAC_MAX_C22ADDR)
@@ -229,12 +220,9 @@ static int stmmac_xgmac2_mdio_write_c22(struct mii_bus *bus, int phyaddr,
static int stmmac_xgmac2_mdio_write_c45(struct mii_bus *bus, int phyaddr,
int devad, int phyreg, u16 phydata)
{
- struct net_device *ndev = bus->priv;
- struct stmmac_priv *priv;
+ struct stmmac_priv *priv = netdev_priv(bus->priv);
u32 addr;
- priv = netdev_priv(ndev);
-
stmmac_xgmac2_c45_format(priv, phyaddr, devad, phyreg, &addr);
return stmmac_xgmac2_mdio_write(priv, addr, MII_XGMAC_BUSY,
@@ -274,8 +262,7 @@ static int stmmac_mdio_read(struct stmmac_priv *priv, int data, u32 value)
*/
static int stmmac_mdio_read_c22(struct mii_bus *bus, int phyaddr, int phyreg)
{
- struct net_device *ndev = bus->priv;
- struct stmmac_priv *priv = netdev_priv(ndev);
+ struct stmmac_priv *priv = netdev_priv(bus->priv);
u32 value = MII_BUSY;
int data = 0;
@@ -312,8 +299,7 @@ static int stmmac_mdio_read_c22(struct mii_bus *bus, int phyaddr, int phyreg)
static int stmmac_mdio_read_c45(struct mii_bus *bus, int phyaddr, int devad,
int phyreg)
{
- struct net_device *ndev = bus->priv;
- struct stmmac_priv *priv = netdev_priv(ndev);
+ struct stmmac_priv *priv = netdev_priv(bus->priv);
u32 value = MII_BUSY;
int data = 0;
@@ -373,8 +359,7 @@ static int stmmac_mdio_write(struct stmmac_priv *priv, int data, u32 value)
static int stmmac_mdio_write_c22(struct mii_bus *bus, int phyaddr, int phyreg,
u16 phydata)
{
- struct net_device *ndev = bus->priv;
- struct stmmac_priv *priv = netdev_priv(ndev);
+ struct stmmac_priv *priv = netdev_priv(bus->priv);
int ret, data = phydata;
u32 value = MII_BUSY;
@@ -412,8 +397,7 @@ static int stmmac_mdio_write_c22(struct mii_bus *bus, int phyaddr, int phyreg,
static int stmmac_mdio_write_c45(struct mii_bus *bus, int phyaddr,
int devad, int phyreg, u16 phydata)
{
- struct net_device *ndev = bus->priv;
- struct stmmac_priv *priv = netdev_priv(ndev);
+ struct stmmac_priv *priv = netdev_priv(bus->priv);
int ret, data = phydata;
u32 value = MII_BUSY;
@@ -452,8 +436,7 @@ static int stmmac_mdio_write_c45(struct mii_bus *bus, int phyaddr,
int stmmac_mdio_reset(struct mii_bus *bus)
{
#if IS_ENABLED(CONFIG_STMMAC_PLATFORM)
- struct net_device *ndev = bus->priv;
- struct stmmac_priv *priv = netdev_priv(ndev);
+ struct stmmac_priv *priv = netdev_priv(bus->priv);
unsigned int mii_address = priv->hw->mii.addr;
#ifdef CONFIG_OF
@@ -497,12 +480,11 @@ int stmmac_mdio_reset(struct mii_bus *bus)
int stmmac_pcs_setup(struct net_device *ndev)
{
+ struct stmmac_priv *priv = netdev_priv(ndev);
struct fwnode_handle *devnode, *pcsnode;
struct dw_xpcs *xpcs = NULL;
- struct stmmac_priv *priv;
int addr, ret;
- priv = netdev_priv(ndev);
devnode = priv->plat->port_node;
if (priv->plat->pcs_init) {
--
2.47.2
next reply other threads:[~2025-08-27 8:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-27 8:41 Russell King (Oracle) [this message]
2025-08-27 11:23 ` [PATCH net-next] net: stmmac: mdio: use netdev_priv() directly Subbaraya Sundeep
2025-08-29 0:00 ` patchwork-bot+netdevbpf
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