Messages in this thread | | | Subject | Re: [kbuild-all] Re: WARNING: modpost: vmlinux.o(.text+0x1a8edb8): Section mismatch in reference from the function stop_machine() to the function .init.text:intel_rng_hw_init() | From | Rong Chen <> | Date | Thu, 25 Feb 2021 16:17:21 +0800 |
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On 2/24/21 10:26 PM, Jürgen Groß wrote: > On 24.02.21 15:20, kernel test robot wrote: >> tree: >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> master >> head: c03c21ba6f4e95e406a1a7b4c34ef334b977c194 >> commit: ab234a260b1f625b26cbefa93ca365b0ae66df33 x86/pv: Rework >> arch_local_irq_restore() to not use popf >> date: 2 weeks ago >> config: x86_64-randconfig-a005-20210223 (attached as .config) >> compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project >> f14a14dd2564703db02f80c00db8ae492b594f77) >> reproduce (this is a W=1 build): >> wget >> https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross >> -O ~/bin/make.cross >> chmod +x ~/bin/make.cross >> # install x86_64 cross compiling tool for clang build >> # apt-get install binutils-x86-64-linux-gnu >> # >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ab234a260b1f625b26cbefa93ca365b0ae66df33 >> git remote add linus >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> git fetch --no-tags linus master >> git checkout ab234a260b1f625b26cbefa93ca365b0ae66df33 >> # save the attached .config to linux build tree >> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross >> ARCH=x86_64 >> >> If you fix the issue, kindly add following tag as appropriate >> Reported-by: kernel test robot <lkp@intel.com> >> >> All warnings (new ones prefixed by >>, old ones prefixed by <<): >> >>>> WARNING: modpost: vmlinux.o(.text+0x1a8edb8): Section mismatch in >>>> reference from the function stop_machine() to the function >>>> .init.text:intel_rng_hw_init() >> The function stop_machine() references >> the function __init intel_rng_hw_init(). >> This is often because stop_machine lacks a __init >> annotation or the annotation of intel_rng_hw_init is wrong. > > I'd be very interested to know how the identified patch would be able to > have this effect.
Hi Clang Team,
The problem is found by the latest clang, and I can't reproduce it with clang-11, could you take a look?
Best Regards, Rong Chen
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