Re: [PATCH 3/3] efi: Add support for using efivars as a pstore backend

[Tony Luck]

On Mon, Jun 6, 2011 at 12:38 PM, Matthew Garrett <mjg@xxxxxxxxxx> wrote:
> EFI provides an area of nonvolatile storage managed by the firmware. We
> can use this as a pstore backend to maintain copies of oopses, aiding
> diagnosis.

Most of the new lines you add to efivars.c should be inside

#ifdef CONFIG_PSTORE
  ...
#endif

so that they don't bloat the kernel if PSTORE isn't configured.

I may have made a poor decision having drivers/acpi/apei/Kconfig
do a "select PSTORE" for the ACPI_APEI option.
It should probably be a normal "def_bool n" sort of thing.

-Tony
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