linux-kernel - arch/arm/kernel/irq.c:51:12: sparse: sparse: symbol '__pcpu_scope_irq_stack_ptr' was not declared. Should it be static?

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Message-ID: <202205021155.rWXuHh4K-lkp@intel.com>
Date:   Mon, 2 May 2022 11:55:45 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ard Biesheuvel <ardb@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: arch/arm/kernel/irq.c:51:12: sparse: sparse: symbol
 '__pcpu_scope_irq_stack_ptr' was not declared. Should it be static?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   672c0c5173427e6b3e2a9bbb7be51ceeec78093a
commit: 9c46929e7989efacc1dd0a1dd662a839897ea2b6 ARM: implement THREAD_INFO_IN_TASK for uniprocessor systems
date:   5 months ago
config: arm-randconfig-s031-20220502 (https://download.01.org/0day-ci/archive/20220502/202205021155.rWXuHh4K-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9c46929e7989efacc1dd0a1dd662a839897ea2b6
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 9c46929e7989efacc1dd0a1dd662a839897ea2b6
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/kernel/ drivers/scsi/lpfc/

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


sparse warnings: (new ones prefixed by >>)
>> arch/arm/kernel/irq.c:51:12: sparse: sparse: symbol '__pcpu_scope_irq_stack_ptr' was not declared. Should it be static?

vim +/__pcpu_scope_irq_stack_ptr +51 arch/arm/kernel/irq.c

9974f857768e4e Ard Biesheuvel  2021-10-05  46  
4a2581a080098c Thomas Gleixner 2006-07-01 @47  unsigned long irq_err_count;
^1da177e4c3f41 Linus Torvalds  2005-04-16  48  
d4664b6c987f80 Ard Biesheuvel  2021-10-05  49  #ifdef CONFIG_IRQSTACKS
d4664b6c987f80 Ard Biesheuvel  2021-10-05  50  
d4664b6c987f80 Ard Biesheuvel  2021-10-05 @51  asmlinkage DEFINE_PER_CPU_READ_MOSTLY(u8 *, irq_stack_ptr);
d4664b6c987f80 Ard Biesheuvel  2021-10-05  52  

:::::: The code at line 51 was first introduced by commit
:::::: d4664b6c987f80338407889c1e3f3abe7e16be94 ARM: implement IRQ stacks

:::::: TO: Ard Biesheuvel <ardb@...nel.org>
:::::: CC: Ard Biesheuvel <ardb@...nel.org>

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