[PATCH 6/7] arm64: explicitly pass --no-fix-cortex-a53-843419 to GNU gold

[Nick Desaulniers]

On Wed, Nov 29, 2017 at 3:44 PM, Sami Tolvanen <samitolvanen at google.com> wrote:
> @@ -26,10 +26,19 @@ ifeq ($(CONFIG_ARM64_ERRATUM_843419),y)
>    ifeq ($(call ld-option, --fix-cortex-a53-843419),)
>  $(warning ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum)
>    else
> +    ifeq ($(call gold-ifversion, -lt, 114000000, y), y)
> +$(warning This version of GNU gold may generate incorrect code with --fix-cortex-a53-843419;\
> +       see https://sourceware.org/bugzilla/show_bug.cgi?id=21491)
> +    endif
>  LDFLAGS_vmlinux        += --fix-cortex-a53-843419
>    endif
>  endif
>
> +ifeq ($(CONFIG_ARM64_ERRATUM_843419),)
> +# https://sourceware.org/bugzilla/show_bug.cgi?id=21491
> +LDFLAGS_GOLD   += --no-fix-cortex-a53-843419
> +endif
> +

Rather than:

if CONFIG_ARM64_ERRATUM_843419 == y:
  ...
if CONFIG_ARM64_ERRATUM_843419 == '':
  ...

could this be:

if CONFIG_ARM64_ERRATUM_843419 == y:
  ...
else
  ...

?