Merge branch 'phy-warn'

Andrew Lunn says:

====================
drivers/net/phy C=1 W=1 fixes

This fixes most of the Sparse and W=1 warnings in drivers/net/phy. The
Cavium code is still not fully clean, but it might actually be the
strange code is confusing Sparse.

v2
--
Added RB, TB, AB.
s/case/cause
Reverse Christmas tree
Module soft dependencies
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

14 files changed, 33 insertions, 44 deletions

diff --git a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
index cbaa1924afbe..3e17ce0d2314 100644
--- a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
+++ b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
@@ -961,7 +961,7 @@ static int octeon_mgmt_init_phy(struct net_device *netdev)
 				PHY_INTERFACE_MODE_MII);
 
 	if (!phydev)
-		return -ENODEV;
+		return -EPROBE_DEFER;
 
 	return 0;
 }
@@ -1554,12 +1554,8 @@ static struct platform_driver octeon_mgmt_driver = {
 	.remove		= octeon_mgmt_remove,
 };
 
-extern void octeon_mdiobus_force_mod_depencency(void);
-
 static int __init octeon_mgmt_mod_init(void)
 {
-	/* Force our mdiobus driver module to be loaded first. */
-	octeon_mdiobus_force_mod_depencency();
 	return platform_driver_register(&octeon_mgmt_driver);
 }
 
@@ -1571,6 +1567,7 @@ static void __exit octeon_mgmt_mod_exit(void)
 module_init(octeon_mgmt_mod_init);
 module_exit(octeon_mgmt_mod_exit);
 
+MODULE_SOFTDEP("pre: mdio-cavium");
 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 MODULE_AUTHOR("David Daney");
 MODULE_LICENSE("GPL");
diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c
index c7eabe4382fb..7471a8b90873 100644
--- a/drivers/net/phy/adin.c
+++ b/drivers/net/phy/adin.c
@@ -106,8 +106,8 @@
 
 /**
  * struct adin_cfg_reg_map - map a config value to aregister value
- * @cfg		value in device configuration
- * @reg		value in the register
+ * @cfg:	value in device configuration
+ * @reg:	value in the register
  */
 struct adin_cfg_reg_map {
 	int cfg;
@@ -135,9 +135,9 @@ static const struct adin_cfg_reg_map adin_rmii_fifo_depths[] = {
 
 /**
  * struct adin_clause45_mmd_map - map to convert Clause 45 regs to Clause 22
- * @devad		device address used in Clause 45 access
- * @cl45_regnum		register address defined by Clause 45
- * @adin_regnum		equivalent register address accessible via Clause 22
+ * @devad:		device address used in Clause 45 access
+ * @cl45_regnum:	register address defined by Clause 45
+ * @adin_regnum:	equivalent register address accessible via Clause 22
  */
 struct adin_clause45_mmd_map {
 	int devad;
@@ -174,7 +174,7 @@ static const struct adin_hw_stat adin_hw_stats[] = {
 
 /**
  * struct adin_priv - ADIN PHY driver private data
- * stats		statistic counters for the PHY
+ * @stats:		statistic counters for the PHY
  */
 struct adin_priv {
 	u64			stats[ARRAY_SIZE(adin_hw_stats)];
diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 97cbe593f0ea..96c61aa75bd7 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -400,8 +400,8 @@ static int at803x_parse_dt(struct phy_device *phydev)
 {
 	struct device_node *node = phydev->mdio.dev.of_node;
 	struct at803x_priv *priv = phydev->priv;
-	unsigned int sel, mask;
 	u32 freq, strength;
+	unsigned int sel;
 	int ret;
 
 	if (!IS_ENABLED(CONFIG_OF_MDIO))
@@ -409,7 +409,6 @@ static int at803x_parse_dt(struct phy_device *phydev)
 
 	ret = of_property_read_u32(node, "qca,clk-out-frequency", &freq);
 	if (!ret) {
-		mask = AT803X_CLK_OUT_MASK;
 		switch (freq) {
 		case 25000000:
 			sel = AT803X_CLK_OUT_25MHZ_XTAL;
@@ -428,8 +427,8 @@ static int at803x_parse_dt(struct phy_device *phydev)
 			return -EINVAL;
 		}
 
-		priv->clk_25m_reg |= FIELD_PREP(mask, sel);
-		priv->clk_25m_mask |= mask;
+		priv->clk_25m_reg |= FIELD_PREP(AT803X_CLK_OUT_MASK, sel);
+		priv->clk_25m_mask |= AT803X_CLK_OUT_MASK;
 
 		/* Fixup for the AR8030/AR8035. This chip has another mask and
 		 * doesn't support the DSP reference. Eg. the lowest bit of the
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index ecbd5e0d685c..da31756f5a70 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -803,9 +803,10 @@ static int decode_evnt(struct dp83640_private *dp83640,
 
 static int match(struct sk_buff *skb, unsigned int type, struct rxts *rxts)
 {
-	u16 *seqid, hash;
 	unsigned int offset = 0;
 	u8 *msgtype, *data = skb_mac_header(skb);
+	__be16 *seqid;
+	u16 hash;
 
 	/* check sequenceID, messageType, 12 bit hash of offset 20-29 */
 
@@ -836,7 +837,7 @@ static int match(struct sk_buff *skb, unsigned int type, struct rxts *rxts)
 	if (rxts->msgtype != (*msgtype & 0xf))
 		return 0;
 
-	seqid = (u16 *)(data + offset + OFF_PTP_SEQUENCE_ID);
+	seqid = (__be16 *)(data + offset + OFF_PTP_SEQUENCE_ID);
 	if (rxts->seqid != ntohs(*seqid))
 		return 0;
 
diff --git a/drivers/net/phy/mdio-boardinfo.c b/drivers/net/phy/mdio-boardinfo.c
index d9b54c67ef9f..033df435f76c 100644
--- a/drivers/net/phy/mdio-boardinfo.c
+++ b/drivers/net/phy/mdio-boardinfo.c
@@ -17,7 +17,8 @@ static DEFINE_MUTEX(mdio_board_lock);
 /**
  * mdiobus_setup_mdiodev_from_board_info - create and setup MDIO devices
  * from pre-collected board specific MDIO information
- * @mdiodev: MDIO device pointer
+ * @bus: Bus the board_info belongs to
+ * @cb: Callback to create device on bus
  * Context: can sleep
  */
 void mdiobus_setup_mdiodev_from_board_info(struct mii_bus *bus,
diff --git a/drivers/net/phy/mdio-cavium.h b/drivers/net/phy/mdio-cavium.h
index e33d3ea9a907..a2245d436f5d 100644
--- a/drivers/net/phy/mdio-cavium.h
+++ b/drivers/net/phy/mdio-cavium.h
@@ -90,7 +90,7 @@ union cvmx_smix_wr_dat {
 
 struct cavium_mdiobus {
 	struct mii_bus *mii_bus;
-	u64 register_base;
+	void __iomem *register_base;
 	enum cavium_mdiobus_mode mode;
 };
 
@@ -98,20 +98,20 @@ struct cavium_mdiobus {
 
 #include <asm/octeon/octeon.h>
 
-static inline void oct_mdio_writeq(u64 val, u64 addr)
+static inline void oct_mdio_writeq(u64 val, void __iomem *addr)
 {
-	cvmx_write_csr(addr, val);
+	cvmx_write_csr((u64 __force)addr, val);
 }
 
-static inline u64 oct_mdio_readq(u64 addr)
+static inline u64 oct_mdio_readq(void __iomem *addr)
 {
-	return cvmx_read_csr(addr);
+	return cvmx_read_csr((u64 __force)addr);
 }
 #else
 #include <linux/io-64-nonatomic-lo-hi.h>
 
-#define oct_mdio_writeq(val, addr)	writeq(val, (void *)addr)
-#define oct_mdio_readq(addr)		readq((void *)addr)
+#define oct_mdio_writeq(val, addr)	writeq(val, addr)
+#define oct_mdio_readq(addr)		readq(addr)
 #endif
 
 int cavium_mdiobus_read(struct mii_bus *bus, int phy_id, int regnum);
diff --git a/drivers/net/phy/mdio-octeon.c b/drivers/net/phy/mdio-octeon.c
index 8327382aa568..d1e1009d51af 100644
--- a/drivers/net/phy/mdio-octeon.c
+++ b/drivers/net/phy/mdio-octeon.c
@@ -44,8 +44,7 @@ static int octeon_mdiobus_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	bus->register_base =
-		(u64)devm_ioremap(&pdev->dev, mdio_phys, regsize);
+	bus->register_base = devm_ioremap(&pdev->dev, mdio_phys, regsize);
 	if (!bus->register_base) {
 		dev_err(&pdev->dev, "dev_ioremap failed\n");
 		return -ENOMEM;
@@ -56,7 +55,7 @@ static int octeon_mdiobus_probe(struct platform_device *pdev)
 	oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN);
 
 	bus->mii_bus->name = KBUILD_MODNAME;
-	snprintf(bus->mii_bus->id, MII_BUS_ID_SIZE, "%llx", bus->register_base);
+	snprintf(bus->mii_bus->id, MII_BUS_ID_SIZE, "%px", bus->register_base);
 	bus->mii_bus->parent = &pdev->dev;
 
 	bus->mii_bus->read = cavium_mdiobus_read;
@@ -109,12 +108,6 @@ static struct platform_driver octeon_mdiobus_driver = {
 	.remove		= octeon_mdiobus_remove,
 };
 
-void octeon_mdiobus_force_mod_depencency(void)
-{
-	/* Let ethernet drivers force us to be loaded.  */
-}
-EXPORT_SYMBOL(octeon_mdiobus_force_mod_depencency);
-
 module_platform_driver(octeon_mdiobus_driver);
 
 MODULE_DESCRIPTION("Cavium OCTEON MDIO bus driver");
diff --git a/drivers/net/phy/mdio-thunder.c b/drivers/net/phy/mdio-thunder.c
index 2a97938d1972..3d7eda99d34e 100644
--- a/drivers/net/phy/mdio-thunder.c
+++ b/drivers/net/phy/mdio-thunder.c
@@ -84,7 +84,7 @@ static int thunder_mdiobus_pci_probe(struct pci_dev *pdev,
 		nexus->buses[i] = bus;
 		i++;
 
-		bus->register_base = (u64)nexus->bar0 +
+		bus->register_base = nexus->bar0 +
 			r.start - pci_resource_start(pdev, 0);
 
 		smi_en.u64 = 0;
diff --git a/drivers/net/phy/mdio_device.c b/drivers/net/phy/mdio_device.c
index be615504b829..0f625a1b1644 100644
--- a/drivers/net/phy/mdio_device.c
+++ b/drivers/net/phy/mdio_device.c
@@ -181,7 +181,7 @@ static int mdio_remove(struct device *dev)
 
 /**
  * mdio_driver_register - register an mdio_driver with the MDIO layer
- * @new_driver: new mdio_driver to register
+ * @drv: new mdio_driver to register
  */
 int mdio_driver_register(struct mdio_driver *drv)
 {
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index eb1068a77ce1..cf3505e2f587 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -106,10 +106,9 @@ const int phy_10gbit_features_array[1] = {
 };
 EXPORT_SYMBOL_GPL(phy_10gbit_features_array);
 
-const int phy_10gbit_fec_features_array[1] = {
+static const int phy_10gbit_fec_features_array[1] = {
 	ETHTOOL_LINK_MODE_10000baseR_FEC_BIT,
 };
-EXPORT_SYMBOL_GPL(phy_10gbit_fec_features_array);
 
 __ETHTOOL_DECLARE_LINK_MODE_MASK(phy_10gbit_full_features) __ro_after_init;
 EXPORT_SYMBOL_GPL(phy_10gbit_full_features);
@@ -227,7 +226,6 @@ static void phy_mdio_device_remove(struct mdio_device *mdiodev)
 }
 
 static struct phy_driver genphy_driver;
-extern struct phy_driver genphy_c45_driver;
 
 static LIST_HEAD(phy_fixup_list);
 static DEFINE_MUTEX(phy_fixup_lock);
diff --git a/drivers/staging/octeon/ethernet-mdio.c b/drivers/staging/octeon/ethernet-mdio.c
index c798672d61b2..cfb673a52b25 100644
--- a/drivers/staging/octeon/ethernet-mdio.c
+++ b/drivers/staging/octeon/ethernet-mdio.c
@@ -163,7 +163,7 @@ int cvm_oct_phy_setup_device(struct net_device *dev)
 	of_node_put(phy_node);
 
 	if (!phydev)
-		return -ENODEV;
+		return -EPROBE_DEFER;
 
 	priv->last_link = 0;
 	phy_start(phydev);
diff --git a/drivers/staging/octeon/ethernet-mdio.h b/drivers/staging/octeon/ethernet-mdio.h
index e3771d48c49b..7f6716e3fad4 100644
--- a/drivers/staging/octeon/ethernet-mdio.h
+++ b/drivers/staging/octeon/ethernet-mdio.h
@@ -22,7 +22,5 @@
 
 extern const struct ethtool_ops cvm_oct_ethtool_ops;
 
-void octeon_mdiobus_force_mod_depencency(void);
-
 int cvm_oct_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 int cvm_oct_phy_setup_device(struct net_device *dev);
diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index f42c3816ce49..204f0b1e2739 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -689,8 +689,6 @@ static int cvm_oct_probe(struct platform_device *pdev)
 	mtu_overhead += VLAN_HLEN;
 #endif
 
-	octeon_mdiobus_force_mod_depencency();
-
 	pip = pdev->dev.of_node;
 	if (!pip) {
 		pr_err("Error: No 'pip' in /aliases\n");
@@ -987,6 +985,7 @@ static struct platform_driver cvm_oct_driver = {
 
 module_platform_driver(cvm_oct_driver);
 
+MODULE_SOFTDEP("pre: mdio-cavium");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Cavium Networks <support@caviumnetworks.com>");
 MODULE_DESCRIPTION("Cavium Networks Octeon ethernet driver.");
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 101a48fa6750..1592c3d0e12f 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1385,6 +1385,9 @@ int genphy_c45_pma_read_abilities(struct phy_device *phydev);
 int genphy_c45_read_status(struct phy_device *phydev);
 int genphy_c45_config_aneg(struct phy_device *phydev);
 
+/* Generic C45 PHY driver */
+extern struct phy_driver genphy_c45_driver;
+
 /* The gen10g_* functions are the old Clause 45 stub */
 int gen10g_config_aneg(struct phy_device *phydev);