Re: linux-next: Tree for Jul 14

[Sudip Mukherjee]

Hi Nathan,

On Thu, Jul 14, 2022 at 5:05 PM Nathan Chancellor <nathan@xxxxxxxxxx> wrote:
>
> Hi Sudip,
>
> On Thu, Jul 14, 2022 at 12:07:06PM +0100, Sudip Mukherjee (Codethink) wrote:
> > Hi Stephen,
> >
> > On Thu, Jul 14, 2022 at 06:55:14PM +1000, Stephen Rothwell wrote:
> > > Hi all,
> > >
> > > Changes since 20220713:
> >
> > Build failures on next-20220714:
>
> <snip>
>
> > x86_64 allmodconfig with clang fails with:
> >
> > drivers/clk/qcom/gpucc-sm8350.c:111:2: error: initializer element is not a compile-time constant
> >         gpu_cc_parent,
> >         ^~~~~~~~~~~~~
> > drivers/clk/qcom/gpucc-sm8350.c:126:2: error: initializer element is not a compile-time constant
> >         gpu_cc_parent,
> >         ^~~~~~~~~~~~~
>
> I sent https://lore.kernel.org/20220711174004.3047516-1-nathan@xxxxxxxxxx/
> for this a few days ago, it just needs to be picked up.
>
> > arch/x86/kernel/cpu/bugs.c:58:21: error: section attribute is specified on redeclared variable [-Werror,-Wsection]
> > DEFINE_PER_CPU(u64, x86_spec_ctrl_current);
> >                     ^
> > ./arch/x86/include/asm/nospec-branch.h:283:12: note: previous declaration is here
> > extern u64 x86_spec_ctrl_current;
>
> This is now fixed in -tip so it should be fixed in -next tomorrorow:
>
> https://git.kernel.org/tip/db866d3352ec85e821e730e191481cba3a2bfa6e

This should also go to Linus. This failure is in the mainline also.
https://lore.kernel.org/lkml/Ys6sZj6KYthnDppq@debian/

>
> In the future, consider CC'ing our mailing list (llvm@xxxxxxxxxxxxxxx)
> for any clang related issues so that we can get them taken care of ASAP,
> we have a MAINTAINERS entry for a reason :) thank you for testing with
> clang; the more people that use it, hopefully the easier it will be to
> get things unbroken.

Sure. I run arm, arm64, powerpc and x86_64 allmodconfigs with clang
(along with gcc) every night for mainline, started with linux-next
from today. Trying to setup the mips build also, I will mail llvm list
asking for help with the mips build.
Currently I only monitor the clang output from x86_64 as thats the one
which builds. If you want I can send the other reports also.


-- 
Regards
Sudip