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| author | Jean Delvare <jdelvare@suse.de> | 2009-09-08 15:31:46 +0200 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-09-27 03:12:13 -0400 |
| commit | 14f03343ad1080c2fea29ab2c13f05b976c4584e (patch) | |
| tree | ec3b36bc0a274ea382f5816a6919d82a59ac110f | |
| parent | b684a3637e0887683a0a3d6fd471fc41d7c1606a (diff) | |
| download | kernel-common-14f03343ad1080c2fea29ab2c13f05b976c4584e.tar.gz kernel-common-14f03343ad1080c2fea29ab2c13f05b976c4584e.tar.bz2 kernel-common-14f03343ad1080c2fea29ab2c13f05b976c4584e.zip | |
ACPI: Clarify resource conflict message
The message "ACPI: Device needs an ACPI driver" is misleading. The
device _may_ need an ACPI driver, if the BIOS implemented a custom
API for the device in question (which, AFAIK, can't be checked.) If
not, then either a generic ACPI driver may be used (for example
"thermal"), or nothing can be done (other than a white list).
I propose to reword the message to:
ACPI: If an ACPI driver is available for this device, you should use
it instead of the native driver
which I think is more correct. Comments and suggestions welcome.
I also added a message warning about possible problems and system
instability when users pass acpi_enforce_resources=lax, as suggested
by Len.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Alan Jenkins <sourcejedi.lkml@googlemail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | drivers/acpi/osl.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 5633b86e3ed1..7c1c59ea9ec6 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -1161,7 +1161,13 @@ int acpi_check_resource_conflict(struct resource *res) res_list_elem->name, (long long) res_list_elem->start, (long long) res_list_elem->end); - printk(KERN_INFO "ACPI: Device needs an ACPI driver\n"); + if (acpi_enforce_resources == ENFORCE_RESOURCES_LAX) + printk(KERN_NOTICE "ACPI: This conflict may" + " cause random problems and system" + " instability\n"); + printk(KERN_INFO "ACPI: If an ACPI driver is available" + " for this device, you should use it instead of" + " the native driver\n"); } if (acpi_enforce_resources == ENFORCE_RESOURCES_STRICT) return -EBUSY; |