Re: [PATCH] x86/efi: Remove the always true EFI_DEBUG symbol

From: Matt Fleming
Date: Thu Apr 21 2016 - 08:48:28 EST


On Thu, 21 Apr, at 02:45:42PM, Borislav Petkov wrote:
> On Thu, Apr 21, 2016 at 12:09:30PM +0100, Matt Fleming wrote:
> > This symbol is always set which makes it useless. Additionally we have
> > a kernel command-line switch, efi=debug, which actually controls the
> > printing of the memory map.
> >
> > Reported-by: Robert Elliott <elliott@xxxxxxx>
> > Cc: Borislav Petkov <bp@xxxxxxxxx>
> > Signed-off-by: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
> > ---
> > arch/x86/platform/efi/efi.c | 4 ----
> > 1 file changed, 4 deletions(-)
>
> Acked-by: Borislav Petkov <bp@xxxxxxx>
>
> Btw, there's also
>
> arch/ia64/kernel/efi.c:45:#define EFI_DEBUG 0
> arch/ia64/kernel/efi.c:399:#if EFI_DEBUG
> arch/ia64/kernel/efi.c:559:#if EFI_DEBUG
>
> I'm assuming you want to put that behind "if (efi_enabled(EFI_DBG))" too...

Hmm.. Yes, that'd be a good idea. I am in the process of setting up an
Itanium box or two for runtime EFI testing, so I'll make a note of
this task.