linux-kernel - Re: [PATCH 1/1] timers/nohz: fix build with CONFIG_NO_HZ

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Date:   Sat, 2 Jul 2022 01:26:50 +0800
From:   kernel test robot <lkp@...el.com>
To:     Yupeng Li <liyupeng@...los.com>, fweisbec@...il.com,
        tglx@...utronix.de, mingo@...nel.org
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org, caizp2008@....com,
        linux-kernel@...r.kernel.org, Yupeng Li <liyupeng@...los.com>
Subject: Re: [PATCH 1/1] timers/nohz: fix build with CONFIG_NO_HZ_FULL
 warnning.

Hi Yupeng,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on tip/timers/nohz]
[also build test WARNING on linus/master v5.19-rc4 next-20220701]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/intel-lab-lkp/linux/commits/Yupeng-Li/timers-nohz-fix-build-with-CONFIG_NO_HZ_FULL-warnning/20220701-114723
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 09fe880ed7a160ebbffb84a0a9096a075e314d2f
config: x86_64-randconfig-k001 (https://download.01.org/0day-ci/archive/20220702/202207020130.RZbvd92n-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a9119143a2d1f4d0d0bc1fe0d819e5351b4e0deb)
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://github.com/intel-lab-lkp/linux/commit/d7397dd311be292d170c1fbd0f3bdc5104c06849
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Yupeng-Li/timers-nohz-fix-build-with-CONFIG_NO_HZ_FULL-warnning/20220701-114723
        git checkout d7397dd311be292d170c1fbd0f3bdc5104c06849
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> WARNING: modpost: vmlinux.o(.text+0x19a091): Section mismatch in reference from the function tick_nohz_full_setup() to the function .init.text:alloc_bootmem_cpumask_var()
The function tick_nohz_full_setup() references
the function __init alloc_bootmem_cpumask_var().
This is often because tick_nohz_full_setup lacks a __init
annotation or the annotation of alloc_bootmem_cpumask_var is wrong.

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp