linux-kernel - Re: [RESEND][PATCH]efi: initialize efi.runtime_version to make query_variable_info/update

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Date:	Fri, 17 Aug 2012 11:31:33 +0100
From:	Matt Fleming <matt.fleming@...el.com>
To:	"H. Peter Anvin" <hpa@...ux.intel.com>
Cc:	Seiji Aguchi <seiji.aguchi@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"Thomas Gleixner (tglx@...utronix.de)" <tglx@...utronix.de>,
	"'mingo@...e.hu' (mingo@...e.hu)" <mingo@...e.hu>,
	"olof@...om.net" <olof@...om.net>,
	"Paul Gortmaker (paul.gortmaker@...driver.com)" 
	<paul.gortmaker@...driver.com>,
	"dle-develop@...ts.sourceforge.net" 
	<dle-develop@...ts.sourceforge.net>,
	Satoru Moriya <satoru.moriya@....com>,
	Matthew Garrett <mjg59@...f.ucam.org>
Subject: Re: [RESEND][PATCH]efi: initialize efi.runtime_version to make
 query_variable_info/update_capsule workable

On Thu, 2012-08-16 at 14:43 -0700, H. Peter Anvin wrote:
> On 08/16/2012 12:53 AM, Matt Fleming wrote:
> > On Mon, 2012-08-06 at 18:37 +0000, Seiji Aguchi wrote:
> >> A value of efi.runtime_version is checked before calling
> >> update_capsule()/query_variable_info() as follows.
> >> But it isn't initialized anywhere.
> >> <snip>
> >> static efi_status_t virt_efi_query_variable_info(u32 attr,
> >>                                                  u64 *storage_space,
> >>                                                   u64 *remaining_space,
> >>                                                  u64 *max_variable_size) {
> >>         if (efi.runtime_version < EFI_2_00_SYSTEM_TABLE_REVISION)
> >>                 return EFI_UNSUPPORTED; 
> >> <snip>
> >>
> >> This patch initializes a value of efi.runtime_version at boot time.
> >>
> >> Acked-by: Matthew Garrett <mjg@...hat.com>
> >> Signed-off-by: Seiji Aguchi <seiji.aguchi@....com>
> >> ---
> >>  arch/x86/platform/efi/efi.c |    1 +
> >>  1 files changed, 1 insertions(+), 0 deletions(-)
> > 
> > Thanks, I picked this up just so it doesn't get lost. It will probably
> > go to Linus via Peter Anvin.
> > 
> 
> Should I take that as an Acked-by: on your part?

Yep.



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