linux-kernel - Re: [PATCH V4 2/3] Revert "x86, efivars: firmware bug workarounds should be in platform code"

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Date:	Thu, 11 Apr 2013 13:30:35 +0000
From:	Matthew Garrett <matthew.garrett@...ula.com>
To:	Matt Fleming <matt@...sole-pimps.org>
CC:	"matt.fleming@...el.com" <matt.fleming@...el.com>,
	"linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V4 2/3] Revert "x86, efivars: firmware bug workarounds
 should be in platform code"

On Thu, 2013-04-11 at 14:24 +0100, Matt Fleming wrote:
> On 10/04/13 18:46, Matthew Garrett wrote:
> > This reverts commit a6e4d5a03e9e3587e88aba687d8f225f4f04c792. Doing this
> > workaround properly requires us to work within the variable code.
> > 
> > Signed-off-by: Matthew Garrett <matthew.garrett@...ula.com>
> > ---
> >  arch/x86/platform/efi/efi.c | 25 -------------------------
> >  drivers/firmware/efivars.c  | 18 +++++++++++++++---
> >  include/linux/efi.h         |  9 +--------
> >  3 files changed, 16 insertions(+), 36 deletions(-)
> 
> Does it really? Why can't you just hook into the get_next_variable() and
> set_variable() functions in arch/x86/platform/efi/efi.c?

struct efi_variable isn't exported from efivars.c, and chunks of the
workaround need to be called at efivars init anyway.

-- 
Matthew Garrett | mjg59@...f.ucam.org