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Commit c3d8e682 authored by Jeff Garzik's avatar Jeff Garzik
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[netdrvr] Remove Becker-template 'io_size' member, when invariant



Becker-derived drivers often have the 'io_size' member in their chip
info struct, indicating the minimum required size of the I/O resource
(usually a PCI BAR).  For many situations, this number is either
constant or irrelevant (due to pci_iomap convenience behavior).

This change removes the io_size invariant member, and replaces it with a
compile-time constant.

Drivers updated: fealnx, gt96100eth, winbond-840, yellowfin

Additionally,
- gt96100eth: unused 'drv_flags' removed from gt96100eth
- winbond-840: unused struct match_info removed
- winbond-840: mark pci_id_tbl[] const, __devinitdata

Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 03a8c661
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+3 −4
Original line number Diff line number Diff line
@@ -146,14 +146,13 @@ enum phy_type_flags {

struct chip_info {
	char *chip_name;
	int io_size;
	int flags;
};

static const struct chip_info skel_netdrv_tbl[] = {
	{"100/10M Ethernet PCI Adapter", 136, HAS_MII_XCVR},
	{"100/10M Ethernet PCI Adapter", 136, HAS_CHIP_XCVR},
	{"1000/100/10M Ethernet PCI Adapter", 136, HAS_MII_XCVR},
 	{ "100/10M Ethernet PCI Adapter",	HAS_MII_XCVR },
	{ "100/10M Ethernet PCI Adapter",	HAS_CHIP_XCVR },
	{ "1000/100/10M Ethernet PCI Adapter",	HAS_MII_XCVR },
};

/* Offsets to the Command and Status Registers. */
+1 −2
Original line number Diff line number Diff line
@@ -699,7 +699,6 @@ static int __init gt96100_probe1(struct pci_dev *pci, int port_num)
	memset(gp, 0, sizeof(*gp)); // clear it

	gp->port_num = port_num;
	gp->io_size = GT96100_ETH_IO_SIZE;
	gp->port_offset = port_num * GT96100_ETH_IO_SIZE;
	gp->phy_addr = phy_addr;
	gp->chip_rev = chip_rev;
@@ -1531,7 +1530,7 @@ static void gt96100_cleanup_module(void)
				+ sizeof(gt96100_td_t) * TX_RING_SIZE,
				gp->rx_ring);
			free_netdev(gtif->dev);
			release_region(gtif->iobase, gp->io_size);
			release_region(gtif->iobase, GT96100_ETH_IO_SIZE);
		}
	}
}
+0 −2
Original line number Diff line number Diff line
@@ -331,7 +331,6 @@ struct gt96100_private {
	mib_counters_t mib;
	struct net_device_stats stats;

	int io_size;
	int port_num;  // 0 or 1
	int chip_rev;
	u32 port_offset;
@@ -340,7 +339,6 @@ struct gt96100_private {
	u32 last_psr; // last value of the port status register

	int options;     /* User-settable misc. driver options. */
	int drv_flags;
	struct timer_list timer;
	spinlock_t lock; /* Serialise access to device */
};
+13 −16
Original line number Diff line number Diff line
@@ -224,24 +224,21 @@ static const struct pci_device_id w840_pci_tbl[] = {
};
MODULE_DEVICE_TABLE(pci, w840_pci_tbl);

enum {
	netdev_res_size		= 128,	/* size of PCI BAR resource */
};

struct pci_id_info {
        const char *name;
        struct match_info {
                int     pci, pci_mask, subsystem, subsystem_mask;
                int revision, revision_mask;                            /* Only 8 bits. */
        } id;
        int io_size;                            /* Needed for I/O region check or ioremap(). */
        int drv_flags;		/* Driver use, intended as capability flags. */
};
static struct pci_id_info pci_id_tbl[] = {
	{"Winbond W89c840",			/* Sometime a Level-One switch card. */
	 { 0x08401050, 0xffffffff, 0x81530000, 0xffff0000 },
	   128, CanHaveMII | HasBrokenTx | FDXOnNoMII},
	{"Winbond W89c840", { 0x08401050, 0xffffffff, },
	   128, CanHaveMII | HasBrokenTx},
	{"Compex RL100-ATX", { 0x201111F6, 0xffffffff,},
	   128, CanHaveMII | HasBrokenTx},
	{NULL,},					/* 0 terminated list. */

static const struct pci_id_info pci_id_tbl[] __devinitdata = {
	{ 				/* Sometime a Level-One switch card. */
	  "Winbond W89c840",	CanHaveMII | HasBrokenTx | FDXOnNoMII},
	{ "Winbond W89c840",	CanHaveMII | HasBrokenTx},
	{ "Compex RL100-ATX",	CanHaveMII | HasBrokenTx},
	{ }	/* terminate list. */
};

/* This driver was written to use PCI memory space, however some x86 systems
@@ -399,7 +396,7 @@ static int __devinit w840_probe1 (struct pci_dev *pdev,
#ifdef USE_IO_OPS
	bar = 0;
#endif
	ioaddr = pci_iomap(pdev, bar, pci_id_tbl[chip_idx].io_size);
	ioaddr = pci_iomap(pdev, bar, netdev_res_size);
	if (!ioaddr)
		goto err_out_free_res;

+5 −4
Original line number Diff line number Diff line
@@ -215,8 +215,11 @@ enum capability_flags {
	HasMACAddrBug=32, /* Only on early revs.  */
	DontUseEeprom=64, /* Don't read the MAC from the EEPROm. */
};

/* The PCI I/O space extent. */
#define YELLOWFIN_SIZE 0x100
enum {
	YELLOWFIN_SIZE	= 0x100,
};

struct pci_id_info {
        const char *name;
@@ -224,16 +227,14 @@ struct pci_id_info {
                int     pci, pci_mask, subsystem, subsystem_mask;
                int revision, revision_mask;                            /* Only 8 bits. */
        } id;
        int io_size;                            /* Needed for I/O region check or ioremap(). */
        int drv_flags;                          /* Driver use, intended as capability flags. */
};

static const struct pci_id_info pci_id_tbl[] = {
	{"Yellowfin G-NIC Gigabit Ethernet", { 0x07021000, 0xffffffff},
	 YELLOWFIN_SIZE,
	 FullTxStatus | IsGigabit | HasMulticastBug | HasMACAddrBug | DontUseEeprom},
	{"Symbios SYM83C885", { 0x07011000, 0xffffffff},
	 YELLOWFIN_SIZE, HasMII | DontUseEeprom },
	  HasMII | DontUseEeprom },
	{ }
};