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Date: Mon, 9 May 2022 02:15:09 +0100 From: Matthew Wilcox <willy@...radead.org> To: kernel test robot <lkp@...el.com> Cc: kbuild-all@...ts.01.org, linux-kernel@...r.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 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@...el.com> > > All warnings (new ones prefixed by >>, old ones prefixed by <<): > > >> 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 I'm going to suggest that my commit is not responsible for anything other than moving a warning around. I do not intend to investigate this further unless someone tells me otherwise.
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