[PATCH] Fix ACPI documentation in kernel-parameters.txt

[PATCH] Fix ACPI documentation in kernel-parameters.txt

[Bernhard Walle]

Add hint that acpi=off doesn't work on IA64.

Signed-off-by: Bernhard Walle <bwalle@suse.de>

---
 Documentation/kernel-parameters.txt |    1 +
 1 file changed, 1 insertion(+)

Index: b/Documentation/kernel-parameters.txt
===================================================================
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -135,6 +135,7 @@ and is between 256 and 4096 characters. 
 				strictly ACPI specification compliant.
 
 			See also Documentation/pm.txt, pci=noacpi
+			On IA64, ACPI cannot be deactivated.
 
 	acpi_sleep=	[HW,ACPI] Sleep options
 			Format: { s3_bios, s3_mode }

Re: [PATCH] Fix ACPI documentation in kernel-parameters.txt

[Roland Dreier]

 > Add hint that acpi=off doesn't work on IA64.

Would it make sense to add code to detect this and print a kernel
message like

    warning: ACPI is always enabled on IA64; ignoring "acpi=off"

No one reads documentation :)

 - R.

Re: [PATCH] Fix ACPI documentation in kernel-parameters.txt

[Bernhard Walle]

[-- Attachment #1: Type: text/plain, Size: 462 bytes --]

Hello,

* Roland Dreier <rdreier@cisco.com> [2007-03-02 00:23]:
>  > Add hint that acpi=off doesn't work on IA64.
> 
> Would it make sense to add code to detect this and print a kernel
> message like
> 
>     warning: ACPI is always enabled on IA64; ignoring "acpi=off"
> 
> No one reads documentation :)

The idea is not bad, but it should not make sense to have it only for
ACPI and not for other arch-specific options ...


Regards
Bernhard

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[PATCH] Fix ACPI documentation in kernel-parameters.txt

[Bernhard Walle]

Add hint that acpi=off doesn't work on IA64.

Signed-off-by: Bernhard Walle <bwalle@suse.de>

---
 Documentation/kernel-parameters.txt |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux-2.6.21-rc2-mm1/Documentation/kernel-parameters.txt
===================================================================
--- linux-2.6.21-rc2-mm1.orig/Documentation/kernel-parameters.txt
+++ linux-2.6.21-rc2-mm1/Documentation/kernel-parameters.txt
@@ -126,7 +126,8 @@ and is between 256 and 4096 characters. 
 			See header of drivers/scsi/53c7xx.c.
 			See also Documentation/scsi/ncr53c7xx.txt.
 
-	acpi=		[HW,ACPI] Advanced Configuration and Power Interface
+	acpi=		[HW,ACPI,X86-64,i386]
+			Advanced Configuration and Power Interface
 			Format: { force | off | ht | strict | noirq }
 			force -- enable ACPI if default was off
 			off -- disable ACPI if default was on