linux-kernel - Re: [PATCH V4 2/3] rust: Add PowerPC support

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Message-ID: <202602101353.da6BkK6l-lkp@intel.com>
Date: Tue, 10 Feb 2026 13:11:48 +0800
From: kernel test robot <lkp@...el.com>
To: "Mukesh Kumar Chaurasiya (IBM)" <mkchauras@...il.com>,
	linkmauve@...kmauve.fr, ojeda@...nel.org, boqun.feng@...il.com,
	gary@...yguo.net, bjorn3_gh@...tonmail.com, lossin@...nel.org,
	a.hindborg@...nel.org, aliceryhl@...gle.com, tmgross@...ch.edu,
	dakr@...nel.org, corbet@....net, maddy@...ux.ibm.com,
	mpe@...erman.id.au, npiggin@...il.com, chleroy@...nel.org,
	peterz@...radead.org, jpoimboe@...nel.org, jbaron@...mai.com,
	rostedt@...dmis.org, ardb@...nel.org,
	rust-for-linux@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Cc: oe-kbuild-all@...ts.linux.dev,
	"Mukesh Kumar Chaurasiya (IBM)" <mkchauras@...il.com>
Subject: Re: [PATCH V4 2/3] rust: Add PowerPC support

Hi Mukesh,

kernel test robot noticed the following build errors:

[auto build test ERROR on v6.19]
[also build test ERROR on linus/master next-20260209]
[cannot apply to powerpc/next powerpc/fixes rust/rust-next ah-configfs/configfs-next]
[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/Mukesh-Kumar-Chaurasiya-IBM/powerpc-jump_label-adjust-inline-asm-to-be-consistent/20260209-185801
base:   v6.19
patch link:    https://lore.kernel.org/r/20260209105456.1551677-3-mkchauras%40gmail.com
patch subject: [PATCH V4 2/3] rust: Add PowerPC support
config: powerpc-randconfig-r073-20260210 (https://download.01.org/0day-ci/archive/20260210/202602101353.da6BkK6l-lkp@intel.com/config)
compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
smatch version: v0.5.0-8994-gd50c5a4c
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260210/202602101353.da6BkK6l-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/oe-kbuild-all/202602101353.da6BkK6l-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   clang: error: unsupported option '-fsanitize=thread' for target 'powerpc-unknown-linux-gnu'
   make[3]: *** [rust/Makefile:624: rust/helpers/helpers.o] Error 1
>> clang diag: arch/powerpc/include/uapi/asm/ioctl.h:5:9: warning: '_IOC_SIZEBITS' macro redefined [-Wmacro-redefined]
>> clang diag: arch/powerpc/include/uapi/asm/ioctl.h:6:9: warning: '_IOC_DIRBITS' macro redefined [-Wmacro-redefined]
>> clang diag: arch/powerpc/include/uapi/asm/ioctl.h:8:9: warning: '_IOC_NONE' macro redefined [-Wmacro-redefined]
>> clang diag: arch/powerpc/include/uapi/asm/ioctl.h:10:9: warning: '_IOC_WRITE' macro redefined [-Wmacro-redefined]
>> error[E0658]: inline assembly is not stable yet on this architecture
   --> rust/kernel/sync/barrier.rs:19:14
   |
   19 |     unsafe { core::arch::asm!("") };
   |              ^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #93335 <https://github.com/rust-lang/rust/issues/93335> for more information
   = help: add `#![feature(asm_experimental_arch)]` to the crate attributes to enable
   = note: this compiler was built on 2025-06-23; consider upgrading it if it is out of date

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki