linux-kernel - arch/powerpc/mm/nohash/fsl_book3e.c:61:3: sparse: sparse: symbol 'tlbcam_addrs' was not declared. Should it be static?

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Date:   Mon, 14 Mar 2022 02:29:02 +0800
From:   kernel test robot <lkp@...el.com>
To:     Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Michael Ellerman <mpe@...erman.id.au>
Subject: arch/powerpc/mm/nohash/fsl_book3e.c:61:3: sparse: sparse: symbol
 'tlbcam_addrs' was not declared. Should it be static?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   aad611a868d16cdc16a7d4a764cef955293e47e3
commit: 44c14509b0dabb909ad1ec28800893ea71762732 powerpc/fsl_booke: Fix setting of exec flag when setting TLBCAMs
date:   5 months ago
config: powerpc-randconfig-s031-20220313 (https://download.01.org/0day-ci/archive/20220314/202203140259.PkwZKhTz-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 11.2.0
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=44c14509b0dabb909ad1ec28800893ea71762732
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 44c14509b0dabb909ad1ec28800893ea71762732
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/mm/nohash/

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/powerpc/mm/nohash/fsl_book3e.c:61:3: sparse: sparse: symbol 'tlbcam_addrs' was not declared. Should it be static?
   arch/powerpc/mm/nohash/fsl_book3e.c:63:15: sparse: sparse: symbol 'tlbcam_sz' was not declared. Should it be static?
>> arch/powerpc/mm/nohash/fsl_book3e.c:277:30: sparse: sparse: Using plain integer as NULL pointer

vim +/tlbcam_addrs +61 arch/powerpc/mm/nohash/fsl_book3e.c

14cf11af6cf608 arch/powerpc/mm/fsl_booke_mmu.c Paul Mackerras 2005-09-26  53  
78f622377f7d31 arch/powerpc/mm/fsl_booke_mmu.c Kumar Gala     2010-05-13  54  #define NUM_TLBCAMS	(64)
78f622377f7d31 arch/powerpc/mm/fsl_booke_mmu.c Kumar Gala     2010-05-13 @55  struct tlbcam TLBCAM[NUM_TLBCAMS];
14cf11af6cf608 arch/powerpc/mm/fsl_booke_mmu.c Paul Mackerras 2005-09-26  56  
14cf11af6cf608 arch/powerpc/mm/fsl_booke_mmu.c Paul Mackerras 2005-09-26  57  struct tlbcamrange {
14cf11af6cf608 arch/powerpc/mm/fsl_booke_mmu.c Paul Mackerras 2005-09-26  58  	unsigned long start;
14cf11af6cf608 arch/powerpc/mm/fsl_booke_mmu.c Paul Mackerras 2005-09-26  59  	unsigned long limit;
14cf11af6cf608 arch/powerpc/mm/fsl_booke_mmu.c Paul Mackerras 2005-09-26  60  	phys_addr_t phys;
14cf11af6cf608 arch/powerpc/mm/fsl_booke_mmu.c Paul Mackerras 2005-09-26 @61  } tlbcam_addrs[NUM_TLBCAMS];
14cf11af6cf608 arch/powerpc/mm/fsl_booke_mmu.c Paul Mackerras 2005-09-26  62  

:::::: The code at line 61 was first introduced by commit
:::::: 14cf11af6cf608eb8c23e989ddb17a715ddce109 powerpc: Merge enough to start building in arch/powerpc.

:::::: TO: Paul Mackerras <paulus@...ba.org>
:::::: CC: Paul Mackerras <paulus@...ba.org>

---
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