linux-kernel - WARNING: vmlinux.o(.text+0x21a7c): Section mismatch in reference from the function mmu_mark_rodata_ro() to the function .init.text:mmu_mapin_ram

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Message-ID: <201912140717.kl0Cju7j%lkp@intel.com>
Date:   Sat, 14 Dec 2019 07:46:43 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Christophe Leroy <christophe.leroy@....fr>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Michael Ellerman <mpe@...erman.id.au>
Subject: WARNING: vmlinux.o(.text+0x21a7c): Section mismatch in reference
 from the function mmu_mark_rodata_ro() to the function
 .init.text:mmu_mapin_ram_chunk()

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   37d4e84f765bb3038ddfeebdc5d1cfd7e1ef688f
commit: a2227a27774328507a5c2335a6dd600c079d1ff5 powerpc/32: Don't populate page tables for block mapped pages except on the 8xx.
date:   4 weeks ago
config: powerpc-randconfig-a001-20191213 (attached as .config)
compiler: powerpc-linux-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout a2227a27774328507a5c2335a6dd600c079d1ff5
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=powerpc 

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

All warnings (new ones prefixed by >>):

>> WARNING: vmlinux.o(.text+0x21a7c): Section mismatch in reference from the function mmu_mark_rodata_ro() to the function .init.text:mmu_mapin_ram_chunk()
   The function mmu_mark_rodata_ro() references
   the function __init mmu_mapin_ram_chunk().
   This is often because mmu_mark_rodata_ro lacks a __init
   annotation or the annotation of mmu_mapin_ram_chunk is wrong.

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation

Download attachment ".config.gz" of type "application/gzip" (26416 bytes)