[PATCH kernel] powerpc/llvm/lto: Allow LLVM LTO builds

[Nick Desaulniers]

On Thu, Apr 28, 2022 at 11:46 PM Alexey Kardashevskiy <aik at ozlabs.ru> wrote:
>
> diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
> index b66dd6f775a4..5b783bd51260 100644
> --- a/arch/powerpc/kernel/exceptions-64s.S
> +++ b/arch/powerpc/kernel/exceptions-64s.S
> @@ -476,9 +476,11 @@ DEFINE_FIXED_SYMBOL(\name\()_common_real, text)
>                 .if IHSRR_IF_HVMODE
>                 BEGIN_FTR_SECTION
>                 bne     masked_Hinterrupt
> +               b       4f
>                 FTR_SECTION_ELSE

Do you need to have the ELSE even if there's nothing in it; should it
have a nop?  The rest of the assembler changes LGTM, but withholding
RB tag until we have Kconfig dependencies in better shape.

> -               bne     masked_interrupt
>                 ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)
> +               bne     masked_interrupt
> +4:
>                 .elseif IHSRR
>                 bne     masked_Hinterrupt
>                 .else

-- 
Thanks,
~Nick Desaulniers