linux-kernel - Re: [PATCH 2/3] arm64: use core efi=debug instead of uefi

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Message-ID: <20150826173000.GG10728@bivouac.eciton.net>
Date:	Wed, 26 Aug 2015 18:30:00 +0100
From:	Leif Lindholm <leif.lindholm@...aro.org>
To:	Matt Fleming <matt@...eblueprint.co.uk>
Cc:	linux-efi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, matt.fleming@...el.com,
	ard.biesheuvel@...aro.org, msalter@...hat.com
Subject: Re: [PATCH 2/3] arm64: use core efi=debug instead of uefi_debug
 command line parameter

On Wed, Aug 26, 2015 at 06:24:55PM +0100, Matt Fleming wrote:
> On Wed, 26 Aug, at 02:24:57PM, Leif Lindholm wrote:
> > Now that we have an efi=debug command line option in the core code, use
> > this instead of the arm64-specific uefi_debug option.
> > 
> > Signed-off-by: Leif Lindholm <leif.lindholm@...aro.org>
> > ---
> >  Documentation/arm/uefi.txt |  2 --
> >  arch/arm64/kernel/efi.c    | 19 +++++--------------
> >  2 files changed, 5 insertions(+), 16 deletions(-)
> 
> Are there no concerns with backwards-compatibility here? I expected
> this patch to internally convert uefi_debug to efi=debug if old boot
> loaders, kernel config, etc specify it.
> 
> Is that something that can be safely ignored?

Since it is purely a debug feature, I opted to just drop it.
I don't have strong feelings, and it could certainly be kept as an
arm64-only alias (but setting the EFI_DBG flag) if others disagree.

/
    Leif
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