Re: [PATCH 5.18 000/231] 5.18.13-rc1 review

[Linus Torvalds]

On Tue, Jul 19, 2022 at 10:57 AM Naresh Kamboju
<naresh.kamboju@xxxxxxxxxx> wrote:
>
>
> Details log:
> ------------
> 1. i386 build failures with clang-13 and clang-14
> make --silent --keep-going --jobs=8
> O=/home/tuxbuild/.cache/tuxmake/builds/1/build LLVM=1 LLVM_IAS=1
> ARCH=i386 CROSS_COMPILE=i686-linux-gnu- 'HOSTCC=sccache clang'
> 'CC=sccache clang'
> ld.lld: error: undefined symbol: __udivdi3

Looks like the one introduced by aff1e0b09b54 ("drm/i915/ttm: fix
sg_table construction"), and fixed by ced7866db39f ("drm/i915/ttm: fix
32b build").

> 2. Large number of build warnings on x86 with gcc-11,
> I do not see these build warnings on mainline,
..
> 'naked' return found in RETPOLINE build

Hmm. Does your cross-compiler support '-mfunction-return=thunk-extern'?

Your build does magic things with 'scripts/kconfig/merge_config.sh',
and I'm wondering if you perhaps end up enabling CONFIG_RETHUNK with a
compiler that doesn't actually support it, or something like that?

             Linus