linux-kernel - [morse:mpam/snapshot/v5.16 60/137] WARNING: modpost: vmlinux.o(.text+0x48087): Section mismatch in reference from the function resctrl_init() to the function .init.text:thread_throttle_mode

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Date:   Wed, 26 Jan 2022 15:39:17 +0800
From:   kernel test robot <lkp@...el.com>
To:     James Morse <james.morse@....com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [morse:mpam/snapshot/v5.16 60/137] WARNING: modpost:
 vmlinux.o(.text+0x48087): Section mismatch in reference from the function
 resctrl_init() to the function .init.text:thread_throttle_mode_init()

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/snapshot/v5.16
head:   364c1c42b229912132e1615c2ce15be7154e2156
commit: 5d118e3da1ad725c2ea8da30eda516096e550289 [60/137] x86/resctrl: Drop __init/__exit on assorted symbols
config: i386-randconfig-a011-20220124 (https://download.01.org/0day-ci/archive/20220126/202201261528.jKedbVna-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 997e128e2a78f5a5434fc75997441ae1ee76f8a4)
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git/commit/?id=5d118e3da1ad725c2ea8da30eda516096e550289
        git remote add morse https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git
        git fetch --no-tags morse mpam/snapshot/v5.16
        git checkout 5d118e3da1ad725c2ea8da30eda516096e550289
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 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+0x48087): Section mismatch in reference from the function resctrl_init() to the function .init.text:thread_throttle_mode_init()
The function resctrl_init() references
the function __init thread_throttle_mode_init().
This is often because resctrl_init lacks a __init
annotation or the annotation of thread_throttle_mode_init is wrong.

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