include/linux/spinlock_api_smp.h:151:27: sparse: sparse: context imbalance in 'orangefs_devreq_read' - different lock contexts for basic block

[kernel test robot <lkp@intel.com>]

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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linux Memory Management List <linux-mm@kvack.org>
CC: Cezary Rojewski <cezary.rojewski@intel.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   eccc876724927ff3b9ff91f36f7b6b159e948f0c
commit: e130816164e244b692921de49771eeb28205152d include/linux/list.h: add a macro to test if entry is pointing to the head
date:   4 weeks ago
:::::: branch date: 22 hours ago
:::::: commit date: 4 weeks ago
config: powerpc-randconfig-s032-20201109 (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
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: v0.6.3-106-gd020cf33-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e130816164e244b692921de49771eeb28205152d
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout e130816164e244b692921de49771eeb28205152d
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=powerpc 

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


"sparse warnings: (new ones prefixed by >>)"
   fs/orangefs/devorangefs-req.c: note: in included file (through include/linux/spinlock.h, include/linux/mmzone.h, include/linux/gfp.h, ...):
>> include/linux/spinlock_api_smp.h:151:27: sparse: sparse: context imbalance in 'orangefs_devreq_read' - different lock contexts for basic block

vim +/orangefs_devreq_read +151 include/linux/spinlock_api_smp.h

69d0ee7377eef80 Heiko Carstens  2009-08-31  147  
9c1721aa4994f66 Thomas Gleixner 2009-12-03  148  static inline void __raw_spin_unlock(raw_spinlock_t *lock)
69d0ee7377eef80 Heiko Carstens  2009-08-31  149  {
5facae4f3549b5c Qian Cai        2019-09-19  150  	spin_release(&lock->dep_map, _RET_IP_);
9828ea9d75c38fe Thomas Gleixner 2009-12-03 @151  	do_raw_spin_unlock(lock);
69d0ee7377eef80 Heiko Carstens  2009-08-31  152  	preempt_enable();
69d0ee7377eef80 Heiko Carstens  2009-08-31  153  }
69d0ee7377eef80 Heiko Carstens  2009-08-31  154  

:::::: The code at line 151 was first introduced by commit
:::::: 9828ea9d75c38fe3dce05d00566eed61c85732e6 locking: Further name space cleanups

:::::: TO: Thomas Gleixner <tglx@linutronix.de>
:::::: CC: Thomas Gleixner <tglx@linutronix.de>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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