Re: linux-next: build failure after merge of the akpm-current tree

Andrew Morton
2018-03-13T19:44:34Z

On Tue, 13 Mar 2018 20:51:19 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:

> Hi Andrew,
>
> After merging the akpm-current tree, today's linux-next build (lots of
> configuations) failed like this:
>
> (from the i386 defconfig build)
>
> In file included from include/linux/memcontrol.h:29:0,
> from include/linux/swap.h:9,
> from include/linux/suspend.h:5,
> from arch/x86/kernel/asm-offsets.c:13:
> include/linux/mm.h: In function 'get_mm_hiwater_rss':
> include/linux/mm.h:1569:9: error: first argument to '__builtin_choose_expr' not a constant
> include/linux/mm.h: In function 'get_mm_hiwater_vm':
> include/linux/mm.h:1574:9: error: first argument to '__builtin_choose_expr' not a constant
>
> and many more ...
>
> Caused by commit
>
> c7c133f3d5ff ("kernel.h: skip single-eval logic on literals in min()/max()")
> (and perhaps the folloups)
>
> Just a few of my builds actaully worked (including those I do
> during the day). For complete logs see
> http://kisskb.ellerman.id.au/kisskb/head/13556/ .
>
> I guess it could be compiler version specific. The failing ones are
> done with gcc 4.6.3. My successful ones with gcc 7.3.1.

Yes, this is being a pain in the butt. I guess we should drop the
patches for now.