On Fri, Oct 21, 2016 at 01:20:17AM +1100, Nicholas Piggin wrote:
> Good catch, I'm surprised you're the first one who reported it. This patch
> seems to do the trick for me:

And me, thanks, so...

> 
> From: Nicholas Piggin <npiggin@gmail.com>
> Date: Fri, 21 Oct 2016 01:13:33 +1100
> Subject: [PATCH] kbuild: prevent lib-ksyms.o rebuilds
> 
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>

Reported-by: Russell King <rmk+kernel@armlinux.org.uk>
Tested-by: Russell King <rmk+kernel@armlinux.org.uk>

> 
> ---
>  scripts/Makefile.build | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/scripts/Makefile.build b/scripts/Makefile.build
> index de46ab0..e1f25d6 100644
> --- a/scripts/Makefile.build
> +++ b/scripts/Makefile.build
> @@ -430,6 +430,9 @@ cmd_export_list = $(OBJDUMP) -h $< | \
> 
>  $(obj)/lib-ksyms.o: $(lib-target) FORCE
>  	$(call if_changed,export_list)
> +
> +targets += $(obj)/lib-ksyms.o
> +
>  endif
> 
>  #

-- 
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