Re: [PATCH] Documentation: Add doc about aerdriver.* parameters tokernel-parameters.txt

From: Andrew Morton
Date: Fri Jun 04 2010 - 18:28:16 EST


On Wed, 2 Jun 2010 11:27:22 -0400
John Villalovos <jvillalo@xxxxxxxxxx> wrote:

> Adding documentation about two aerdriver.* command line parameters.
>
> Signed-off-by: John L. Villalovos <john.l.villalovos@xxxxxxxxx>
>
> diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
> index 1808f11..57ff168 100644
> --- a/Documentation/kernel-parameters.txt
> +++ b/Documentation/kernel-parameters.txt
> @@ -293,6 +293,19 @@ and is between 256 and 4096 characters. It is defined in the file
> Format: <io>,<irq>,<dma>,<mss_io>,<mpu_io>,<mpu_irq>
> See also header of sound/oss/aedsp16.c.
>
> + aerdriver.forceload= [HW,PCIE] Advanced Error Recovery (AER) Root Driver
> + { y, n }
> + y: Force the AER Root driver to load
> + n: Do not force the AER Root driver to load [DEFAULT]
> + See also Documentation/PCI/pcieaer-howto.txt
> +
> + aerdriver.nosourceid= [HW,PCIE]
> + { y, n }
> + y: Use when broken hardware (mostly chipsets) has root
> + ports that cannot obtain the reporting source ID.
> + n: [DEFAULT]
> + See also Documentation/PCI/pcieaer-howto.txt
> +
> agp= [AGP]
> { off | try_unsupported }
> off: disable AGP support

We don't normally document the parameters for random drivers within
kernel-parameters.txt - that file is more for core-kernel things.

The way to document these guys is with MODULE_PARM_DESC() in
drivers/pci/pcie/aer/aerdrv_core.c. Coz some dope forgot to do that.

I'm sure there's some way of extracting all these random
MODULE_PARM_DESC()s from vmlinux/modules/etc for human consumption, but
I'm not sure what that way is.

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