linux-kernel - Re: [PATCH 1/2] efi: merge x86 and ia64 code

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Date:	Wed, 13 Jul 2011 11:57:38 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Matthew Garrett <mjg@...hat.com>
CC:	linux-kernel@...r.kernel.org, x86@...nel.org
Subject: Re: [PATCH 1/2] efi: merge x86 and ia64 code

On 07/12/2011 01:24 PM, Matthew Garrett wrote:
> We currently have two almost entirely independent EFI implementations in
> the kernel, with the x86 code having begun as a modified version of the
> ia64 code. Forthcoming ARM platforms will use EFI and there are
> experimental ports for some MIPS platforms, so continuing this "One EFI
> implementation per architecture" model is likely to result in massive bug
> duplication. This patch merges the common elements of the ia64 and x86
> implementations, which should make adding any future platforms a simple
> matter of adding setup code and the appropriate stubs for accessing EFI
> resources and making calls.
> 
> Signed-off-by: Matthew Garrett <mjg@...hat.com>

Hi Matt,

I get a build error on x86-32:

/home/hpa/kernel/linux-2.6-tip.efi/arch/x86/platform/efi/efi_32.c:43:
error: conflicting types for ‘efi_call_phys_prelog’
/home/hpa/kernel/linux-2.6-tip.efi/arch/x86/include/asm/efi.h:73: note:
previous declaration of ‘efi_call_phys_prelog’ was here
/home/hpa/kernel/linux-2.6-tip.efi/arch/x86/platform/efi/efi_32.c:85:
error: conflicting types for ‘efi_call_phys_epilog’
/home/hpa/kernel/linux-2.6-tip.efi/arch/x86/include/asm/efi.h:74: note:
previous declaration of ‘efi_call_phys_epilog’ was here
make[5]: *** [arch/x86/platform/efi/efi_32.o] Error 1

	-hpa
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