linux-kernel - WARNING: modpost: vmlinux.o(.text+0x9908c): Section mismatch in reference from the function xive_setup_cpu_ipi() to the function .init.text:xive_request

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Date:   Tue, 17 Aug 2021 13:09:28 +0800
From:   kernel test robot <lkp@...el.com>
To:     Cédric Le Goater <clg@...d.org>
Cc:     clang-built-linux@...glegroups.com, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Michael Ellerman <mpe@...erman.id.au>
Subject: WARNING: modpost: vmlinux.o(.text+0x9908c): Section mismatch in
 reference from the function xive_setup_cpu_ipi() to the function
 .init.text:xive_request_ipi()

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   794c7931a2428a656551f2179e6a093233a6e0aa
commit: cbc06f051c524dcfe52ef0d1f30647828e226d30 powerpc/xive: Do not skip CPU-less nodes when creating the IPIs
date:   5 days ago
config: powerpc-randconfig-r015-20210816 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 44d0a99a12ec7ead4d2f5ef649ba05b40f6d463d)
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 powerpc cross compiling tool for clang build
        # apt-get install binutils-powerpc64le-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cbc06f051c524dcfe52ef0d1f30647828e226d30
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout cbc06f051c524dcfe52ef0d1f30647828e226d30
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> WARNING: modpost: vmlinux.o(.text+0x9908c): Section mismatch in reference from the function xive_setup_cpu_ipi() to the function .init.text:xive_request_ipi()
The function xive_setup_cpu_ipi() references
the function __init xive_request_ipi().
This is often because xive_setup_cpu_ipi lacks a __init
annotation or the annotation of xive_request_ipi is wrong.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (34634 bytes)