diff options
| author |   Jean Delvare <khali@linux-fr.org> | 2010-05-27 19:58:37 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@linux-fr.org> | 2010-05-27 19:58:37 +0200 |
| commit | 70dd6beac02f43a5099fcf5fddf68cfee0cbf479 (patch) | |
| tree | 53d70a87157eafdf62612922a137fcc365439688 /drivers/acpi | |
| parent | Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 (diff) | |
| download | linux-dev-70dd6beac02f43a5099fcf5fddf68cfee0cbf479.tar.xz linux-dev-70dd6beac02f43a5099fcf5fddf68cfee0cbf479.zip | |
hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced
When the user passes the kernel parameter acpi_enforce_resources=lax,
the ACPI resources are no longer protected, so a native driver can
make use of them. In that case, we do not want the asus_atk0110 to be
loaded. Unfortunately, this driver loads automatically due to its
MODULE_DEVICE_TABLE, so the user ends up with two drivers loaded for
the same device - this is bad.
So I suggest that we prevent the asus_atk0110 driver from loading if
acpi_enforce_resources=lax.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Luca Tettamanti <kronos.it@gmail.com>
Cc: Len Brown <lenb@kernel.org>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/osl.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 4bc1c4178f50..78418ce4fc78 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -1207,6 +1207,15 @@ int acpi_check_mem_region(resource_size_t start, resource_size_t n, EXPORT_SYMBOL(acpi_check_mem_region); /* + * Let drivers know whether the resource checks are effective + */ +int acpi_resources_are_enforced(void) +{ + return acpi_enforce_resources == ENFORCE_RESOURCES_STRICT; +} +EXPORT_SYMBOL(acpi_resources_are_enforced); + +/* * Acquire a spinlock. * * handle is a pointer to the spinlock_t. |