net: pch_gbe: Remove get_bus_info HAL abstraction

For some reason the pch_gbe driver contains a struct pch_gbe_functions
with pointers used by a HAL abstraction layer, even though there is only
one implementation of each function.

This patch removes the get_bus_info abstraction. Its single
implementation (pch_gbe_plat_get_bus_info) only sets values within a
struct pch_gbe_bus_info which is never used, so we simply remove the
call to it in pch_gbe_probe & remove struct pch_gbe_bus_info entirely.

Now that struct pch_gbe_functions is empty we remove it entirely too.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h

@@ -326,16 +326,6 @@ struct pch_gbe_regs {
 #define PCH_GBE_FC_FULL			3
 #define PCH_GBE_FC_DEFAULT		PCH_GBE_FC_FULL
 
-
-struct pch_gbe_hw;
-/**
- * struct  pch_gbe_functions - HAL APi function pointer
- * @get_bus_info:	for pch_gbe_hal_get_bus_info
- */
-struct pch_gbe_functions {
-	void (*get_bus_info) (struct pch_gbe_hw *);
-};
-
 /**
  * struct pch_gbe_mac_info - MAC information
  * @addr[6]:		Store the MAC address
@@ -376,17 +366,6 @@ struct pch_gbe_phy_info {
 	u16 autoneg_advertised;
 };
 
-/*!
- * @ingroup Gigabit Ether driver Layer
- * @struct  pch_gbe_bus_info
- * @brief   Bus information
- */
-struct pch_gbe_bus_info {
-	u8 type;
-	u8 speed;
-	u8 width;
-};
-
 /*!
  * @ingroup Gigabit Ether driver Layer
  * @struct  pch_gbe_hw
@@ -398,10 +377,8 @@ struct pch_gbe_hw {
 	struct pch_gbe_regs  __iomem *reg;
 	spinlock_t miim_lock;
 
-	const struct pch_gbe_functions *func;
 	struct pch_gbe_mac_info mac;
 	struct pch_gbe_phy_info phy;
-	struct pch_gbe_bus_info bus;
 };
 
 /**

drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c

@@ -20,47 +20,6 @@
 #include "pch_gbe_phy.h"
 #include "pch_gbe_api.h"
 
-/* bus type values */
-#define pch_gbe_bus_type_unknown	0
-#define pch_gbe_bus_type_pci		1
-#define pch_gbe_bus_type_pcix		2
-#define pch_gbe_bus_type_pci_express	3
-#define pch_gbe_bus_type_reserved	4
-
-/* bus speed values */
-#define pch_gbe_bus_speed_unknown	0
-#define pch_gbe_bus_speed_33		1
-#define pch_gbe_bus_speed_66		2
-#define pch_gbe_bus_speed_100		3
-#define pch_gbe_bus_speed_120		4
-#define pch_gbe_bus_speed_133		5
-#define pch_gbe_bus_speed_2500		6
-#define pch_gbe_bus_speed_reserved	7
-
-/* bus width values */
-#define pch_gbe_bus_width_unknown	0
-#define pch_gbe_bus_width_pcie_x1	1
-#define pch_gbe_bus_width_pcie_x2	2
-#define pch_gbe_bus_width_pcie_x4	4
-#define pch_gbe_bus_width_32		5
-#define pch_gbe_bus_width_64		6
-#define pch_gbe_bus_width_reserved	7
-
-/**
- * pch_gbe_plat_get_bus_info - Obtain bus information for adapter
- * @hw:	Pointer to the HW structure
- */
-static void pch_gbe_plat_get_bus_info(struct pch_gbe_hw *hw)
-{
-	hw->bus.type  = pch_gbe_bus_type_pci_express;
-	hw->bus.speed = pch_gbe_bus_speed_2500;
-	hw->bus.width = pch_gbe_bus_width_pcie_x1;
-}
-
-static const struct pch_gbe_functions pch_gbe_ops = {
-	.get_bus_info      = pch_gbe_plat_get_bus_info,
-};
-
 /**
  * pch_gbe_plat_init_function_pointers - Init func ptrs
  * @hw:	Pointer to the HW structure
@@ -69,8 +28,6 @@ static void pch_gbe_plat_init_function_pointers(struct pch_gbe_hw *hw)
 {
 	/* Set PHY parameter */
 	hw->phy.reset_delay_us     = PCH_GBE_PHY_RESET_DELAY_US;
-	/* Set function pointers */
-	hw->func = &pch_gbe_ops;
 }
 
 /**
@@ -91,18 +48,3 @@ s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw)
 	pch_gbe_plat_init_function_pointers(hw);
 	return 0;
 }
-
-/**
- * pch_gbe_hal_get_bus_info - Obtain bus information for adapter
- * @hw:	Pointer to the HW structure
- */
-void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw)
-{
-	if (!hw->func->get_bus_info) {
-		struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
-
-		netdev_err(adapter->netdev, "ERROR: configuration\n");
-		return;
-	}
-	hw->func->get_bus_info(hw);
-}

drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.h

@@ -22,6 +22,5 @@
 #include "pch_gbe_phy.h"
 
 s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw);
-void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw);
 
 #endif

drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c

@@ -2635,7 +2635,6 @@ static int pch_gbe_probe(struct pci_dev *pdev,
 		dev_err(&pdev->dev, "PHY initialize error\n");
 		goto err_free_adapter;
 	}
-	pch_gbe_hal_get_bus_info(&adapter->hw);
 
 	/* Read the MAC address. and store to the private data */
 	ret = pch_gbe_mac_read_mac_addr(&adapter->hw);