linux-kernel - WARNING: modpost: vmlinux.o(.text.unlikely+0x47a4): Section mismatch in reference from the function init_tracefs.isra.0() to the variable .init.data:initcall_level

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Message-ID: <202111110523.nUZYrZGy-lkp@intel.com>
Date:   Thu, 11 Nov 2021 05:48:28 +0800
From:   kernel test robot <lkp@...el.com>
To:     Daniel Bristot de Oliveira <bristot@...hat.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        "Steven Rostedt (VMware)" <rostedt@...dmis.org>
Subject: WARNING: modpost: vmlinux.o(.text.unlikely+0x47a4): Section mismatch
 in reference from the function init_tracefs.isra.0() to the variable
 .init.data:initcall_level_names

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   881007522c8fcc3785c75432dbb149ca1b78e106
commit: bce29ac9ce0bb0b0b146b687ab978378c21e9078 trace: Add osnoise tracer
date:   5 months ago
config: xtensa-randconfig-r022-20211001 (attached as .config)
compiler: xtensa-linux-gcc (GCC) 11.2.0
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/torvalds/linux.git/commit/?id=bce29ac9ce0bb0b0b146b687ab978378c21e9078
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout bce29ac9ce0bb0b0b146b687ab978378c21e9078
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=xtensa 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.unlikely+0x47a4): Section mismatch in reference from the function init_tracefs.isra.0() to the variable .init.data:initcall_level_names
The function init_tracefs.isra.0() references
the variable __initdata initcall_level_names.
This is often because init_tracefs.isra.0 lacks a __initdata
annotation or the annotation of initcall_level_names is wrong.

Note: the below error/warnings can be found in parent commit:
<< WARNING: modpost: vmlinux.o(.text.unlikely+0x4634): Section mismatch in reference from the function run_tracer_selftest() to the variable .init.data:initcall_level_names
<< WARNING: modpost: vmlinux.o(.text.unlikely+0x83c0): Section mismatch in reference from the function memcpy_from_page.part.0() to the variable .init.data:initcall_level_names
<< WARNING: modpost: vmlinux.o(.text.unlikely+0x8968): Section mismatch in reference from the function bitmap_equal() to the variable .init.rodata:__setup_str_initcall_blacklist

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

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