Revision 6e6ece5dc6022e8086c565498d23511bbceda811 authored by Jesse Barnes on 09 November 2005, 04:13:02 UTC, committed by Greg Kroah-Hartman on 11 November 2005, 00:09:18 UTC
After much testing and agony, I've discovered that my previous ohci1394 quirk for Toshiba laptops is not 100% reliable. It apparently fails to do the interrupt line change either correctly or in time, since in about 2 out of 5 boots, the kernel's irqdebug code will *still* disable irq 11 when the ohci1394 driver is loaded (at pci_enable_device time I think). This patch switches things around a little in the workaround. First, it removes the mdelay. I didn't see a need for it and my testing has shown that it's not necessary for the quirk to work. Secondly, instead of trying to change the interrupt line to what ACPI tells us it should be, this patch makes the quirk use the value in the PCI_INTERRUPT_LINE register. On this laptop at least, that seems to be the right thing to do, though additional testing on other laptops and/or with actual firewire devices would be appreciated. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
1 parent 6560aa5
do_mounts.h
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/devfs_fs_kernel.h>
#include <linux/init.h>
#include <linux/syscalls.h>
#include <linux/unistd.h>
#include <linux/slab.h>
#include <linux/mount.h>
#include <linux/major.h>
#include <linux/root_dev.h>
void change_floppy(char *fmt, ...);
void mount_block_root(char *name, int flags);
void mount_root(void);
extern int root_mountflags;
extern char *root_device_name;
#ifdef CONFIG_DEVFS_FS
void mount_devfs(void);
void umount_devfs(char *path);
int create_dev(char *name, dev_t dev, char *devfs_name);
#else
static inline void mount_devfs(void) {}
static inline void umount_devfs(const char *path) {}
static inline int create_dev(char *name, dev_t dev, char *devfs_name)
{
sys_unlink(name);
return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
}
#endif
#if BITS_PER_LONG == 32
static inline u32 bstat(char *name)
{
struct stat64 stat;
if (sys_stat64(name, &stat) != 0)
return 0;
if (!S_ISBLK(stat.st_mode))
return 0;
if (stat.st_rdev != (u32)stat.st_rdev)
return 0;
return stat.st_rdev;
}
#else
static inline u32 bstat(char *name)
{
struct stat stat;
if (sys_newstat(name, &stat) != 0)
return 0;
if (!S_ISBLK(stat.st_mode))
return 0;
return stat.st_rdev;
}
#endif
#ifdef CONFIG_BLK_DEV_RAM
int __init rd_load_disk(int n);
int __init rd_load_image(char *from);
#else
static inline int rd_load_disk(int n) { return 0; }
static inline int rd_load_image(char *from) { return 0; }
#endif
#ifdef CONFIG_BLK_DEV_INITRD
int __init initrd_load(void);
#else
static inline int initrd_load(void) { return 0; }
#endif
#ifdef CONFIG_BLK_DEV_MD
void md_run_setup(void);
#else
static inline void md_run_setup(void) {}
#endif
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