korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-21 18:14:48 +08:00
Code Issues Packages Projects Releases Wiki Activity
1fd52137d3
linux/drivers/net/ethernet/natsemi/macsonic.c
Mike Rapoport 65fddcfca8 mm: reorder includes after introduction of linux/pgtable.h 
The replacement of <asm/pgrable.h> with <linux/pgtable.h> made the include
of the latter in the middle of asm includes.  Fix this up with the aid of
the below script and manual adjustments here and there.

	import sys
	import re

	if len(sys.argv) is not 3:
	    print "USAGE: %s <file> <header>" % (sys.argv[0])
	    sys.exit(1)

	hdr_to_move="#include <linux/%s>" % sys.argv[2]
	moved = False
	in_hdrs = False

	with open(sys.argv[1], "r") as f:
	    lines = f.readlines()
	    for _line in lines:
		line = _line.rstrip('
')
		if line == hdr_to_move:
		    continue
		if line.startswith("#include <linux/"):
		    in_hdrs = True
		elif not moved and in_hdrs:
		    moved = True
		    print hdr_to_move
		print line

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200514170327.31389-4-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-09 09:39:13 -07:00

639 lines
17 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0
/*
* macsonic.c
*
* (C) 2005 Finn Thain
*
* Converted to DMA API, converted to unified driver model, made it work as
* a module again, and from the mac68k project, introduced more 32-bit cards
* and dhd's support for 16-bit cards.
*
* (C) 1998 Alan Cox
*
* Debugging Andreas Ehliar, Michael Schmitz
*
* Based on code
* (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de)
*
* This driver is based on work from Andreas Busse, but most of
* the code is rewritten.
*
* (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de)
*
* A driver for the Mac onboard Sonic ethernet chip.
*
* 98/12/21 MSch: judged from tests on Q800, it's basically working,
* but eating up both receive and transmit resources
* and duplicating packets. Needs more testing.
*
* 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed.
*
* 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems
* on centris.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/gfp.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/in.h>
#include <linux/string.h>
#include <linux/delay.h>
#include <linux/nubus.h>
#include <linux/errno.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/bitrev.h>
#include <linux/slab.h>
#include <linux/pgtable.h>
#include <asm/io.h>
#include <asm/hwtest.h>
#include <asm/dma.h>
#include <asm/macintosh.h>
#include <asm/macints.h>
#include <asm/mac_via.h>
#include "sonic.h"
/* These should basically be bus-size and endian independent (since
the SONIC is at least smart enough that it uses the same endianness
as the host, unlike certain less enlightened Macintosh NICs) */
#define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \
+ lp->reg_offset))
#define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
+ lp->reg_offset))
/* For onboard SONIC */
#define ONBOARD_SONIC_REGISTERS 0x50F0A000
#define ONBOARD_SONIC_PROM_BASE 0x50f08000
enum macsonic_type {
MACSONIC_DUODOCK,
MACSONIC_APPLE,
MACSONIC_APPLE16,
MACSONIC_DAYNA,
MACSONIC_DAYNALINK
};
/* For the built-in SONIC in the Duo Dock */
#define DUODOCK_SONIC_REGISTERS 0xe10000
#define DUODOCK_SONIC_PROM_BASE 0xe12000
/* For Apple-style NuBus SONIC */
#define APPLE_SONIC_REGISTERS 0
#define APPLE_SONIC_PROM_BASE 0x40000
/* Daynalink LC SONIC */
#define DAYNALINK_PROM_BASE 0x400000
/* For Dayna-style NuBus SONIC (haven't seen one yet) */
#define DAYNA_SONIC_REGISTERS 0x180000
/* This is what OpenBSD says. However, this is definitely in NuBus
ROM space so we should be able to get it by walking the NuBus
resource directories */
#define DAYNA_SONIC_MAC_ADDR 0xffe004
#define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr)
/*
* For reversing the PROM address
*/
static inline void bit_reverse_addr(unsigned char addr[6])
{
int i;
for(i = 0; i < 6; i++)
addr[i] = bitrev8(addr[i]);
}
static int macsonic_open(struct net_device* dev)
{
int retval;
retval = request_irq(dev->irq, sonic_interrupt, 0, "sonic", dev);
if (retval) {
printk(KERN_ERR "%s: unable to get IRQ %d.\n",
dev->name, dev->irq);
goto err;
}
/* Under the A/UX interrupt scheme, the onboard SONIC interrupt gets
* moved from level 2 to level 3. Unfortunately we still get some
* level 2 interrupts so register the handler for both.
*/
if (dev->irq == IRQ_AUTO_3) {
retval = request_irq(IRQ_NUBUS_9, sonic_interrupt, 0,
"sonic", dev);
if (retval) {
printk(KERN_ERR "%s: unable to get IRQ %d.\n",
dev->name, IRQ_NUBUS_9);
goto err_irq;
}
}
retval = sonic_open(dev);
if (retval)
goto err_irq_nubus;
return 0;
err_irq_nubus:
if (dev->irq == IRQ_AUTO_3)
free_irq(IRQ_NUBUS_9, dev);
err_irq:
free_irq(dev->irq, dev);
err:
return retval;
}
static int macsonic_close(struct net_device* dev)
{
int err;
err = sonic_close(dev);
free_irq(dev->irq, dev);
if (dev->irq == IRQ_AUTO_3)
free_irq(IRQ_NUBUS_9, dev);
return err;
}
static const struct net_device_ops macsonic_netdev_ops = {
.ndo_open = macsonic_open,
.ndo_stop = macsonic_close,
.ndo_start_xmit = sonic_send_packet,
.ndo_set_rx_mode = sonic_multicast_list,
.ndo_tx_timeout = sonic_tx_timeout,
.ndo_get_stats = sonic_get_stats,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
};
static int macsonic_init(struct net_device *dev)
{
struct sonic_local* lp = netdev_priv(dev);
int err = sonic_alloc_descriptors(dev);
if (err)
return err;
dev->netdev_ops = &macsonic_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
/*
* clear tally counter
*/
SONIC_WRITE(SONIC_CRCT, 0xffff);
SONIC_WRITE(SONIC_FAET, 0xffff);
SONIC_WRITE(SONIC_MPT, 0xffff);
return 0;
}
#define INVALID_MAC(mac) (memcmp(mac, "\x08\x00\x07", 3) && \
memcmp(mac, "\x00\xA0\x40", 3) && \
memcmp(mac, "\x00\x80\x19", 3) && \
memcmp(mac, "\x00\x05\x02", 3))
static void mac_onboard_sonic_ethernet_addr(struct net_device *dev)
{
struct sonic_local *lp = netdev_priv(dev);
const int prom_addr = ONBOARD_SONIC_PROM_BASE;
unsigned short val;
/*
* On NuBus boards we can sometimes look in the ROM resources.
* No such luck for comm-slot/onboard.
* On the PowerBook 520, the PROM base address is a mystery.
*/
if (hwreg_present((void *)prom_addr)) {
int i;
for (i = 0; i < 6; i++)
dev->dev_addr[i] = SONIC_READ_PROM(i);
if (!INVALID_MAC(dev->dev_addr))
return;
/*
* Most of the time, the address is bit-reversed. The NetBSD
* source has a rather long and detailed historical account of
* why this is so.
*/
bit_reverse_addr(dev->dev_addr);
if (!INVALID_MAC(dev->dev_addr))
return;
/*
* If we still have what seems to be a bogus address, we'll
* look in the CAM. The top entry should be ours.
*/
printk(KERN_WARNING "macsonic: MAC address in PROM seems "
"to be invalid, trying CAM\n");
} else {
printk(KERN_WARNING "macsonic: cannot read MAC address from "
"PROM, trying CAM\n");
}
/* This only works if MacOS has already initialized the card. */
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
SONIC_WRITE(SONIC_CEP, 15);
val = SONIC_READ(SONIC_CAP2);
dev->dev_addr[5] = val >> 8;
dev->dev_addr[4] = val & 0xff;
val = SONIC_READ(SONIC_CAP1);
dev->dev_addr[3] = val >> 8;
dev->dev_addr[2] = val & 0xff;
val = SONIC_READ(SONIC_CAP0);
dev->dev_addr[1] = val >> 8;
dev->dev_addr[0] = val & 0xff;
if (!INVALID_MAC(dev->dev_addr))
return;
/* Still nonsense ... messed up someplace! */
printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 "
"seems invalid, will use a random MAC\n");
eth_hw_addr_random(dev);
}
static int mac_onboard_sonic_probe(struct net_device *dev)
{
struct sonic_local* lp = netdev_priv(dev);
int sr;
bool commslot = macintosh_config->expansion_type == MAC_EXP_PDS_COMM;
/* Bogus probing, on the models which may or may not have
Ethernet (BTW, the Ethernet *is* always at the same
address, and nothing else lives there, at least if Apple's
documentation is to be believed) */
if (commslot || macintosh_config->ident == MAC_MODEL_C610) {
int card_present;
card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
if (!card_present) {
pr_info("Onboard/comm-slot SONIC not found\n");
return -ENODEV;
}
}
/* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
* and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
dev->base_addr = ONBOARD_SONIC_REGISTERS;
if (via_alt_mapping)
dev->irq = IRQ_AUTO_3;
else
dev->irq = IRQ_NUBUS_9;
/* The PowerBook's SONIC is 16 bit always. */
if (macintosh_config->ident == MAC_MODEL_PB520) {
lp->reg_offset = 0;
lp->dma_bitmode = SONIC_BITMODE16;
} else if (commslot) {
/* Some of the comm-slot cards are 16 bit. But some
of them are not. The 32-bit cards use offset 2 and
have known revisions, we try reading the revision
register at offset 2, if we don't get a known revision
we assume 16 bit at offset 0. */
lp->reg_offset = 2;
lp->dma_bitmode = SONIC_BITMODE16;
sr = SONIC_READ(SONIC_SR);
if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
/* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
lp->dma_bitmode = SONIC_BITMODE32;
else {
lp->dma_bitmode = SONIC_BITMODE16;
lp->reg_offset = 0;
}
} else {
/* All onboard cards are at offset 2 with 32 bit DMA. */
lp->reg_offset = 2;
lp->dma_bitmode = SONIC_BITMODE32;
}
pr_info("Onboard/comm-slot SONIC, revision 0x%04x, %d bit DMA, register offset %d\n",
SONIC_READ(SONIC_SR), lp->dma_bitmode ? 32 : 16,
lp->reg_offset);
/* This is sometimes useful to find out how MacOS configured the card */
pr_debug("%s: DCR=0x%04x, DCR2=0x%04x\n", __func__,
SONIC_READ(SONIC_DCR) & 0xffff,
SONIC_READ(SONIC_DCR2) & 0xffff);
/* Software reset, then initialize control registers. */
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
(lp->dma_bitmode ? SONIC_DCR_DW : 0));
/* This *must* be written back to in order to restore the
* extended programmable output bits, as it may not have been
* initialised since the hardware reset. */
SONIC_WRITE(SONIC_DCR2, 0);
/* Clear *and* disable interrupts to be on the safe side */
SONIC_WRITE(SONIC_IMR, 0);
SONIC_WRITE(SONIC_ISR, 0x7fff);
/* Now look for the MAC address. */
mac_onboard_sonic_ethernet_addr(dev);
pr_info("SONIC ethernet @%08lx, MAC %pM, IRQ %d\n",
dev->base_addr, dev->dev_addr, dev->irq);
/* Shared init code */
return macsonic_init(dev);
}
static int mac_sonic_nubus_ethernet_addr(struct net_device *dev,
unsigned long prom_addr, int id)
{
int i;
for(i = 0; i < 6; i++)
dev->dev_addr[i] = SONIC_READ_PROM(i);
/* Some of the addresses are bit-reversed */
if (id != MACSONIC_DAYNA)
bit_reverse_addr(dev->dev_addr);
return 0;
}
static int macsonic_ident(struct nubus_rsrc *fres)
{
if (fres->dr_hw == NUBUS_DRHW_ASANTE_LC &&
fres->dr_sw == NUBUS_DRSW_SONIC_LC)
return MACSONIC_DAYNALINK;
if (fres->dr_hw == NUBUS_DRHW_SONIC &&
fres->dr_sw == NUBUS_DRSW_APPLE) {
/* There has to be a better way to do this... */
if (strstr(fres->board->name, "DuoDock"))
return MACSONIC_DUODOCK;
else
return MACSONIC_APPLE;
}
if (fres->dr_hw == NUBUS_DRHW_SMC9194 &&
fres->dr_sw == NUBUS_DRSW_DAYNA)
return MACSONIC_DAYNA;
if (fres->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
fres->dr_sw == 0) { /* huh? */
return MACSONIC_APPLE16;
}
return -1;
}
static int mac_sonic_nubus_probe_board(struct nubus_board *board, int id,
struct net_device *dev)
{
struct sonic_local* lp = netdev_priv(dev);
unsigned long base_addr, prom_addr;
u16 sonic_dcr;
int reg_offset, dma_bitmode;
switch (id) {
case MACSONIC_DUODOCK:
base_addr = board->slot_addr + DUODOCK_SONIC_REGISTERS;
prom_addr = board->slot_addr + DUODOCK_SONIC_PROM_BASE;
sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
SONIC_DCR_TFT0;
reg_offset = 2;
dma_bitmode = SONIC_BITMODE32;
break;
case MACSONIC_APPLE:
base_addr = board->slot_addr + APPLE_SONIC_REGISTERS;
prom_addr = board->slot_addr + APPLE_SONIC_PROM_BASE;
sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE32;
break;
case MACSONIC_APPLE16:
base_addr = board->slot_addr + APPLE_SONIC_REGISTERS;
prom_addr = board->slot_addr + APPLE_SONIC_PROM_BASE;
sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
SONIC_DCR_PO1 | SONIC_DCR_BMS;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE16;
break;
case MACSONIC_DAYNALINK:
base_addr = board->slot_addr + APPLE_SONIC_REGISTERS;
prom_addr = board->slot_addr + DAYNALINK_PROM_BASE;
sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
SONIC_DCR_PO1 | SONIC_DCR_BMS;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE16;
break;
case MACSONIC_DAYNA:
base_addr = board->slot_addr + DAYNA_SONIC_REGISTERS;
prom_addr = board->slot_addr + DAYNA_SONIC_MAC_ADDR;
sonic_dcr = SONIC_DCR_BMS |
SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE16;
break;
default:
printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
return -ENODEV;
}
/* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
* and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
dev->base_addr = base_addr;
lp->reg_offset = reg_offset;
lp->dma_bitmode = dma_bitmode;
dev->irq = SLOT2IRQ(board->slot);
dev_info(&board->dev, "%s, revision 0x%04x, %d bit DMA, register offset %d\n",
board->name, SONIC_READ(SONIC_SR),
lp->dma_bitmode ? 32 : 16, lp->reg_offset);
/* This is sometimes useful to find out how MacOS configured the card */
dev_dbg(&board->dev, "%s: DCR=0x%04x, DCR2=0x%04x\n", __func__,
SONIC_READ(SONIC_DCR) & 0xffff,
SONIC_READ(SONIC_DCR2) & 0xffff);
/* Software reset, then initialize control registers. */
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
/* This *must* be written back to in order to restore the
* extended programmable output bits, since it may not have been
* initialised since the hardware reset. */
SONIC_WRITE(SONIC_DCR2, 0);
/* Clear *and* disable interrupts to be on the safe side */
SONIC_WRITE(SONIC_IMR, 0);
SONIC_WRITE(SONIC_ISR, 0x7fff);
/* Now look for the MAC address. */
if (mac_sonic_nubus_ethernet_addr(dev, prom_addr, id) != 0)
return -ENODEV;
dev_info(&board->dev, "SONIC ethernet @%08lx, MAC %pM, IRQ %d\n",
dev->base_addr, dev->dev_addr, dev->irq);
/* Shared init code */
return macsonic_init(dev);
}
static int mac_sonic_platform_probe(struct platform_device *pdev)
{
struct net_device *dev;
struct sonic_local *lp;
int err;
dev = alloc_etherdev(sizeof(struct sonic_local));
if (!dev)
return -ENOMEM;
lp = netdev_priv(dev);
lp->device = &pdev->dev;
SET_NETDEV_DEV(dev, &pdev->dev);
platform_set_drvdata(pdev, dev);
err = mac_onboard_sonic_probe(dev);
if (err)
goto out;
sonic_msg_init(dev);
err = register_netdev(dev);
if (err)
goto out;
return 0;
out:
free_netdev(dev);
return err;
}
MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
MODULE_ALIAS("platform:macsonic");
#include "sonic.c"
static int mac_sonic_platform_remove(struct platform_device *pdev)
{
struct net_device *dev = platform_get_drvdata(pdev);
struct sonic_local* lp = netdev_priv(dev);
unregister_netdev(dev);
dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
lp->descriptors, lp->descriptors_laddr);
free_netdev(dev);
return 0;
}
static struct platform_driver mac_sonic_platform_driver = {
.probe = mac_sonic_platform_probe,
.remove = mac_sonic_platform_remove,
.driver = {
.name = "macsonic",
},
};
static int mac_sonic_nubus_probe(struct nubus_board *board)
{
struct net_device *ndev;
struct sonic_local *lp;
struct nubus_rsrc *fres;
int id = -1;
int err;
/* The platform driver will handle a PDS or Comm Slot card (even if
* it has a pseudoslot declaration ROM).
*/
if (macintosh_config->expansion_type == MAC_EXP_PDS_COMM)
return -ENODEV;
for_each_board_func_rsrc(board, fres) {
if (fres->category != NUBUS_CAT_NETWORK ||
fres->type != NUBUS_TYPE_ETHERNET)
continue;
id = macsonic_ident(fres);
if (id != -1)
break;
}
if (!fres)
return -ENODEV;
ndev = alloc_etherdev(sizeof(struct sonic_local));
if (!ndev)
return -ENOMEM;
lp = netdev_priv(ndev);
lp->device = &board->dev;
SET_NETDEV_DEV(ndev, &board->dev);
err = mac_sonic_nubus_probe_board(board, id, ndev);
if (err)
goto out;
sonic_msg_init(ndev);
err = register_netdev(ndev);
if (err)
goto out;
nubus_set_drvdata(board, ndev);
return 0;
out:
free_netdev(ndev);
return err;
}
static int mac_sonic_nubus_remove(struct nubus_board *board)
{
struct net_device *ndev = nubus_get_drvdata(board);
struct sonic_local *lp = netdev_priv(ndev);
unregister_netdev(ndev);
dma_free_coherent(lp->device,
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
lp->descriptors, lp->descriptors_laddr);
free_netdev(ndev);
return 0;
}
static struct nubus_driver mac_sonic_nubus_driver = {
.probe = mac_sonic_nubus_probe,
.remove = mac_sonic_nubus_remove,
.driver = {
.name = "macsonic-nubus",
.owner = THIS_MODULE,
},
};
static int perr, nerr;
static int __init mac_sonic_init(void)
{
perr = platform_driver_register(&mac_sonic_platform_driver);
nerr = nubus_driver_register(&mac_sonic_nubus_driver);
return 0;
}
module_init(mac_sonic_init);
static void __exit mac_sonic_exit(void)
{
if (!perr)
platform_driver_unregister(&mac_sonic_platform_driver);
if (!nerr)
nubus_driver_unregister(&mac_sonic_nubus_driver);
}
module_exit(mac_sonic_exit);
Reference in New Issue View Git Blame Copy Permalink