mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 03:10:12 +00:00
![Wolfram Sang](/assets/img/avatar_default.png)
Follow the advice of the below link and prefer 'strscpy' in this subsystem. Conversion is 1:1 because the return value is not used. Generated by a coccinelle script. Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for CAN Link: https://lore.kernel.org/r/20220830201457.7984-1-wsa+renesas@sang-engineering.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
259 lines
6.2 KiB
C
259 lines
6.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* INET An implementation of the TCP/IP protocol suite for the LINUX
|
|
* operating system. INET is implemented using the BSD Socket
|
|
* interface as the means of communication with the user level.
|
|
*
|
|
* Holds initial configuration information for devices.
|
|
*
|
|
* Version: @(#)Space.c 1.0.7 08/12/93
|
|
*
|
|
* Authors: Ross Biro
|
|
* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
|
|
* Donald J. Becker, <becker@scyld.com>
|
|
*
|
|
* Changelog:
|
|
* Stephen Hemminger (09/2003)
|
|
* - get rid of pre-linked dev list, dynamic device allocation
|
|
* Paul Gortmaker (03/2002)
|
|
* - struct init cleanup, enable multiple ISA autoprobes.
|
|
* Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 09/1999
|
|
* - fix sbni: s/device/net_device/
|
|
* Paul Gortmaker (06/98):
|
|
* - sort probes in a sane way, make sure all (safe) probes
|
|
* get run once & failed autoprobes don't autoprobe again.
|
|
*/
|
|
#include <linux/netdevice.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/init.h>
|
|
#include <linux/netlink.h>
|
|
#include <net/Space.h>
|
|
|
|
/*
|
|
* This structure holds boot-time configured netdevice settings. They
|
|
* are then used in the device probing.
|
|
*/
|
|
struct netdev_boot_setup {
|
|
char name[IFNAMSIZ];
|
|
struct ifmap map;
|
|
};
|
|
#define NETDEV_BOOT_SETUP_MAX 8
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* Device Boot-time Settings Routines
|
|
*
|
|
******************************************************************************/
|
|
|
|
/* Boot time configuration table */
|
|
static struct netdev_boot_setup dev_boot_setup[NETDEV_BOOT_SETUP_MAX];
|
|
|
|
/**
|
|
* netdev_boot_setup_add - add new setup entry
|
|
* @name: name of the device
|
|
* @map: configured settings for the device
|
|
*
|
|
* Adds new setup entry to the dev_boot_setup list. The function
|
|
* returns 0 on error and 1 on success. This is a generic routine to
|
|
* all netdevices.
|
|
*/
|
|
static int netdev_boot_setup_add(char *name, struct ifmap *map)
|
|
{
|
|
struct netdev_boot_setup *s;
|
|
int i;
|
|
|
|
s = dev_boot_setup;
|
|
for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
|
|
if (s[i].name[0] == '\0' || s[i].name[0] == ' ') {
|
|
memset(s[i].name, 0, sizeof(s[i].name));
|
|
strscpy(s[i].name, name, IFNAMSIZ);
|
|
memcpy(&s[i].map, map, sizeof(s[i].map));
|
|
break;
|
|
}
|
|
}
|
|
|
|
return i >= NETDEV_BOOT_SETUP_MAX ? 0 : 1;
|
|
}
|
|
|
|
/**
|
|
* netdev_boot_setup_check - check boot time settings
|
|
* @dev: the netdevice
|
|
*
|
|
* Check boot time settings for the device.
|
|
* The found settings are set for the device to be used
|
|
* later in the device probing.
|
|
* Returns 0 if no settings found, 1 if they are.
|
|
*/
|
|
int netdev_boot_setup_check(struct net_device *dev)
|
|
{
|
|
struct netdev_boot_setup *s = dev_boot_setup;
|
|
int i;
|
|
|
|
for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
|
|
if (s[i].name[0] != '\0' && s[i].name[0] != ' ' &&
|
|
!strcmp(dev->name, s[i].name)) {
|
|
dev->irq = s[i].map.irq;
|
|
dev->base_addr = s[i].map.base_addr;
|
|
dev->mem_start = s[i].map.mem_start;
|
|
dev->mem_end = s[i].map.mem_end;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(netdev_boot_setup_check);
|
|
|
|
/**
|
|
* netdev_boot_base - get address from boot time settings
|
|
* @prefix: prefix for network device
|
|
* @unit: id for network device
|
|
*
|
|
* Check boot time settings for the base address of device.
|
|
* The found settings are set for the device to be used
|
|
* later in the device probing.
|
|
* Returns 0 if no settings found.
|
|
*/
|
|
static unsigned long netdev_boot_base(const char *prefix, int unit)
|
|
{
|
|
const struct netdev_boot_setup *s = dev_boot_setup;
|
|
char name[IFNAMSIZ];
|
|
int i;
|
|
|
|
sprintf(name, "%s%d", prefix, unit);
|
|
|
|
/*
|
|
* If device already registered then return base of 1
|
|
* to indicate not to probe for this interface
|
|
*/
|
|
if (__dev_get_by_name(&init_net, name))
|
|
return 1;
|
|
|
|
for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++)
|
|
if (!strcmp(name, s[i].name))
|
|
return s[i].map.base_addr;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Saves at boot time configured settings for any netdevice.
|
|
*/
|
|
static int __init netdev_boot_setup(char *str)
|
|
{
|
|
int ints[5];
|
|
struct ifmap map;
|
|
|
|
str = get_options(str, ARRAY_SIZE(ints), ints);
|
|
if (!str || !*str)
|
|
return 0;
|
|
|
|
/* Save settings */
|
|
memset(&map, 0, sizeof(map));
|
|
if (ints[0] > 0)
|
|
map.irq = ints[1];
|
|
if (ints[0] > 1)
|
|
map.base_addr = ints[2];
|
|
if (ints[0] > 2)
|
|
map.mem_start = ints[3];
|
|
if (ints[0] > 3)
|
|
map.mem_end = ints[4];
|
|
|
|
/* Add new entry to the list */
|
|
return netdev_boot_setup_add(str, &map);
|
|
}
|
|
|
|
__setup("netdev=", netdev_boot_setup);
|
|
|
|
static int __init ether_boot_setup(char *str)
|
|
{
|
|
return netdev_boot_setup(str);
|
|
}
|
|
__setup("ether=", ether_boot_setup);
|
|
|
|
|
|
/* A unified ethernet device probe. This is the easiest way to have every
|
|
* ethernet adaptor have the name "eth[0123...]".
|
|
*/
|
|
|
|
struct devprobe2 {
|
|
struct net_device *(*probe)(int unit);
|
|
int status; /* non-zero if autoprobe has failed */
|
|
};
|
|
|
|
static int __init probe_list2(int unit, struct devprobe2 *p, int autoprobe)
|
|
{
|
|
struct net_device *dev;
|
|
|
|
for (; p->probe; p++) {
|
|
if (autoprobe && p->status)
|
|
continue;
|
|
dev = p->probe(unit);
|
|
if (!IS_ERR(dev))
|
|
return 0;
|
|
if (autoprobe)
|
|
p->status = PTR_ERR(dev);
|
|
}
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* ISA probes that touch addresses < 0x400 (including those that also
|
|
* look for EISA/PCI cards in addition to ISA cards).
|
|
*/
|
|
static struct devprobe2 isa_probes[] __initdata = {
|
|
#ifdef CONFIG_3C515
|
|
{tc515_probe, 0},
|
|
#endif
|
|
#ifdef CONFIG_ULTRA
|
|
{ultra_probe, 0},
|
|
#endif
|
|
#ifdef CONFIG_WD80x3
|
|
{wd_probe, 0},
|
|
#endif
|
|
#if defined(CONFIG_NE2000) /* ISA (use ne2k-pci for PCI cards) */
|
|
{ne_probe, 0},
|
|
#endif
|
|
#ifdef CONFIG_LANCE /* ISA/VLB (use pcnet32 for PCI cards) */
|
|
{lance_probe, 0},
|
|
#endif
|
|
#ifdef CONFIG_SMC9194
|
|
{smc_init, 0},
|
|
#endif
|
|
#ifdef CONFIG_CS89x0_ISA
|
|
{cs89x0_probe, 0},
|
|
#endif
|
|
{NULL, 0},
|
|
};
|
|
|
|
/* Unified ethernet device probe, segmented per architecture and
|
|
* per bus interface. This drives the legacy devices only for now.
|
|
*/
|
|
|
|
static void __init ethif_probe2(int unit)
|
|
{
|
|
unsigned long base_addr = netdev_boot_base("eth", unit);
|
|
|
|
if (base_addr == 1)
|
|
return;
|
|
|
|
probe_list2(unit, isa_probes, base_addr == 0);
|
|
}
|
|
|
|
/* Statically configured drivers -- order matters here. */
|
|
static int __init net_olddevs_init(void)
|
|
{
|
|
int num;
|
|
|
|
for (num = 0; num < 8; ++num)
|
|
ethif_probe2(num);
|
|
|
|
#ifdef CONFIG_COPS
|
|
cops_probe(0);
|
|
cops_probe(1);
|
|
cops_probe(2);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
device_initcall(net_olddevs_init);
|