[PATCH] arm64: efi: Don't include EFI fpsimd save/restore code in non-EFI kernels

Dave Martin Dave.Martin at arm.com
Fri Sep 1 02:22:05 PDT 2017

On Thu, Aug 31, 2017 at 04:46:32PM +0100, Ard Biesheuvel wrote:
> On 31 August 2017 at 16:33, Dave Martin <Dave.Martin at arm.com> wrote:
> > __efi_fpsimd_begin()/__efi_fpsimd_end() are for use when making EFI
> > calls only, so using them in non-EFI kernels is not allowed.
> >
> > This patch compiles them out if CONFIG_EFI is not set.
> >
> > Signed-off-by: Dave Martin <Dave.Martin at arm.com>
> Acked-by: Ard Biesheuvel <ard.biesheuvel at linaro.org>


> I suppose we could also move these into arch/arm64/kernel/efi.c

Could do, though I initially preferred to keep them in fpsimd.c due to
the interactions with kernel-mode NEON.

I'll probably leave them where they are for now unless someone has a
strong view on it.


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