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Date:   Mon, 9 May 2022 22:01:13 +0800
From:   Philip Li <philip.li@intel.com>
To:     kernel test robot <lkp@intel.com>
Cc:     "Matthew Wilcox (Oracle)" <willy@infradead.org>,
        kbuild-all@lists.01.org, linux-kernel@vger.kernel.org
Subject: Re: WARNING: modpost: vmlinux.o(.text+0xa76d36): Section mismatch in
 reference from the function rtc_update_irq() to the variable .init.text:.L0
Message-ID: <YnkeqQrMZrqkAZAP@rli9-dbox>
References: <202205090847.j9NvIYxI-lkp@intel.com>
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On Mon, May 09, 2022 at 08:14:44AM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   c5eb0a61238dd6faf37f58c9ce61c9980aaffd7a
> commit: 170f37d6aa6ad4582eefd7459015de79e244536e block: Do not call folio_next() on an unreferenced folio
> date:   4 days ago
> config: riscv-randconfig-r042-20220509 (https://download.01.org/0day-ci/archive/20220509/202205090847.j9NvIYxI-lkp@intel.com/config)
> compiler: riscv32-linux-gcc (GCC) 11.3.0
> 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=170f37d6aa6ad4582eefd7459015de79e244536e
>         git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>         git fetch --no-tags linus master
>         git checkout 170f37d6aa6ad4582eefd7459015de79e244536e
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash
> 
> 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 <<):

Sorry, kindly ignore this report, which is a false positive. We will
block such report in future.

> 
> >> WARNING: modpost: vmlinux.o(.text+0xa76d36): Section mismatch in reference from the function rtc_update_irq() to the variable .init.text:.L0
> The function rtc_update_irq() references
> the variable __init .L0 .
> This is often because rtc_update_irq lacks a __init
> annotation or the annotation of .L0 is wrong.
> 
> Note: the below error/warnings can be found in parent commit:
> << WARNING: modpost: vmlinux.o(.text+0xa7418e): Section mismatch in reference from the function rtc_month_days() to the variable .init.setup:__setup_root_delay_setup
> << WARNING: modpost: vmlinux.o(.text+0xb2080e): Section mismatch in reference from the function thermal_zone_device_unregister() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0xb34ff0): Section mismatch in reference from the function btintel_enter_mfg() to the variable .init.text:.LBB18955
> << WARNING: modpost: vmlinux.o(.text+0xb5964e): Section mismatch in reference from the function cpuidle_switch_governor() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0xbacbfa): Section mismatch in reference from the function comedi_buf_map_get() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(__ex_table+0x141c): Section mismatch in reference from the variable .L0 to the variable .debug_str:.LASF1100
> 
> -- 
> 0-DAY CI Kernel Test Service
> https://01.org/lkp