linux-kernel - Re: [PATCH 2/4] kbuild: Disable AutoFDO and Propeller flags for kernel modules

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Message-ID: <CAF1bQ=QQQLp=m677dYGDwor=cbHR1JDeQuL92+MrZkQ-OQ_J3A@mail.gmail.com>
Date: Tue, 14 Oct 2025 12:03:49 -0700
From: Rong Xu <xur@...gle.com>
To: kernel test robot <lkp@...el.com>
Cc: Alexey Gladkov <legion@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>, 
	Ard Biesheuvel <ardb@...nel.org>, Bill Wendling <morbo@...gle.com>, Han Shen <shenhan@...gle.com>, 
	Ingo Molnar <mingo@...nel.org>, Josh Poimboeuf <jpoimboe@...nel.org>, 
	Justin Stitt <justinstitt@...gle.com>, Kees Cook <kees@...nel.org>, 
	Linus Walleij <linus.walleij@...aro.org>, Masahiro Yamada <masahiroy@...nel.org>, 
	Miguel Ojeda <ojeda@...nel.org>, Nathan Chancellor <nathan@...nel.org>, 
	Nick Desaulniers <nick.desaulniers+lkml@...il.com>, Nicolas Schier <nicolas.schier@...ux.dev>, 
	Peter Zijlstra <peterz@...radead.org>, Tamir Duberstein <tamird@...il.com>, 
	Thomas Gleixner <tglx@...utronix.de>, Thomas Weißschuh <thomas.weissschuh@...utronix.de>, 
	Yabin Cui <yabinc@...gle.com>, Sriraman Tallam <tmsriram@...gle.com>, llvm@...ts.linux.dev, 
	oe-kbuild-all@...ts.linux.dev, linux-kbuild@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] kbuild: Disable AutoFDO and Propeller flags for
 kernel modules

I'll filter -pie from vmlinux_o build (which produces a relocatable
object) in the new patch.

Thanks,

-Rong

On Sat, Oct 11, 2025 at 7:14 PM kernel test robot <lkp@...el.com> wrote:
>
> Hi,
>
> kernel test robot noticed the following build errors:
>
> [auto build test ERROR on kees/for-next/kspp]
> [also build test ERROR on linus/master kees/for-next/pstore v6.17 next-20251010]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/xur-google-com/kbuild-Disable-AutoFDO-and-Propeller-flags-for-kernel-modules/20251011-050345
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/kspp
> patch link:    https://lore.kernel.org/r/20251010210134.2066321-2-xur%40google.com
> patch subject: [PATCH 2/4] kbuild: Disable AutoFDO and Propeller flags for kernel modules
> :::::: branch date: 26 hours ago
> :::::: commit date: 26 hours ago
> config: loongarch-defconfig (https://download.01.org/0day-ci/archive/20251012/202510120709.Wx3q4Ppg-lkp@intel.com/config)
> compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251012/202510120709.Wx3q4Ppg-lkp@intel.com/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@...el.com>
> | Closes: https://lore.kernel.org/r/202510120709.Wx3q4Ppg-lkp@intel.com/
>
> All errors (new ones prefixed by >>):
>
> >> ld.lld: error: -r and -pie may not be used together
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
>