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| author | Andi Kleen <ak@suse.de> | 2006-03-25 16:30:19 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-25 09:10:54 -0800 |
| commit | f083a329e63d471a5e9238e837772b1b76c218db (patch) | |
| tree | 3d0955a4190ca886c3efa2e93e725d843e7d907b /drivers/acpi/blacklist.c | |
| parent | e6fc99c6aba0350a3c4c0206b7047d4893491485 (diff) | |
| download | linux-stable-f083a329e63d471a5e9238e837772b1b76c218db.tar.gz linux-stable-f083a329e63d471a5e9238e837772b1b76c218db.tar.bz2 linux-stable-f083a329e63d471a5e9238e837772b1b76c218db.zip | |
[PATCH] x86_64: Clean up and tweak ACPI blacklist year code
- Move the core parser into dmi_scan.c. It can be useful for other
subsystems too.
- Differentiate between field doesn't exist and field is 0 or
unparseable. The first case is likely an old BIOS with broken ACPI,
the later is likely a slightly buggy BIOS where someone forget to
edit the date. Don't blacklist in the later case.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/acpi/blacklist.c')
| -rw-r--r-- | drivers/acpi/blacklist.c | 27 |
1 files changed, 6 insertions, 21 deletions
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index 9824f679a910..f9c972b26f4f 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -77,28 +77,13 @@ static struct acpi_blacklist_item acpi_blacklist[] __initdata = { static int __init blacklist_by_year(void) { - int year; - char *s = dmi_get_system_info(DMI_BIOS_DATE); - - if (!s) - return 0; - if (!*s) - return 0; - - s = strrchr(s, '/'); - if (!s) + int year = dmi_get_year(DMI_BIOS_DATE); + /* Doesn't exist? Likely an old system */ + if (year == -1) + return 1; + /* 0? Likely a buggy new BIOS */ + if (year == 0) return 0; - - s += 1; - - year = simple_strtoul(s, NULL, 0); - - if (year < 100) { /* 2-digit year */ - year += 1900; - if (year < 1996) /* no dates < spec 1.0 */ - year += 100; - } - if (year < CONFIG_ACPI_BLACKLIST_YEAR) { printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), " "acpi=force is required to enable ACPI\n", |