linux-kernel - Re: [PATCH v2 11/11] smp: modify up.c to adopt the same format of cross CPU call.

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Date:   Sat, 23 Apr 2022 13:58:31 +0800
From:   kernel test robot <lkp@...el.com>
To:     Donghai Qiao <dqiao@...hat.com>, akpm@...ux-foundation.org,
        sfr@...b.auug.org.au, arnd@...db.de, peterz@...radead.org,
        heying24@...wei.com, andriy.shevchenko@...ux.intel.com,
        axboe@...nel.dk, rdunlap@...radead.org, tglx@...utronix.de,
        gor@...ux.ibm.com
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        donghai.w.qiao@...il.com, linux-kernel@...r.kernel.org,
        Donghai Qiao <dqiao@...hat.com>
Subject: Re: [PATCH v2 11/11] smp: modify up.c to adopt the same format of
 cross CPU call.

Hi Donghai,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on powerpc/next]
[also build test ERROR on rafael-pm/linux-next linus/master v5.18-rc3]
[cannot apply to tip/x86/core next-20220422]
[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/Donghai-Qiao/smp-cross-CPU-call-interface/20220423-060436
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: i386-randconfig-a015 (https://download.01.org/0day-ci/archive/20220423/202204231305.905VHc1H-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5bd87350a5ae429baf8f373cb226a57b62f87280)
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/655b898028ef1555f6bec036db8d4681b551aaa8
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Donghai-Qiao/smp-cross-CPU-call-interface/20220423-060436
        git checkout 655b898028ef1555f6bec036db8d4681b551aaa8
        # 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=i386 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> kernel/up.c:50:11: error: use of undeclared identifier 'cpu'
           smp_call(cpu, func, info, type);
                    ^
   kernel/up.c:80:12: error: use of undeclared identifier 'cpu'
                   smp_call(cpu, func, info, type);
                            ^
   2 errors generated.


vim +/cpu +50 kernel/up.c

    41	
    42	void smp_call_mask(const struct cpumask *mask, smp_call_func_t func, void *info, unsigned int type)
    43	{
    44		unsigned long flags;
    45	
    46		if (!cpumask_test_cpu(0, mask))
    47			return;
    48	
    49		preempt_disable();
  > 50		smp_call(cpu, func, info, type);
    51		preempt_enable();
    52	}
    53	EXPORT_SYMBOL(smp_call_mask);
    54	

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