[kbuild] arch/parisc/include/asm/spinlock.h:153:23: sparse: sparse: context imbalance in '_raw_write_unlock' - unexpected unlock

CC: kbuild-all(a)lists.01.org CC: linux-kernel(a)vger.kernel.org TO: Helge Deller <deller(a)gmx.de&gt; tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: d8b9faec54ae4bc2fff68bcd0befa93ace8256ce commit: fbdc8f0f4891df7b5eb643ec0a509a4ac7dcfc2e parisc: Rework arch_rw locking functions date: 4 months ago :::::: branch date: 9 hours ago :::::: commit date: 4 months ago config: parisc-randconfig-s032-20200731 (attached as .config) compiler: hppa-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: v0.6.2-115-g5fc204f2-dirty git checkout fbdc8f0f4891df7b5eb643ec0a509a4ac7dcfc2e # 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=parisc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) kernel/locking/spinlock.c:126:1: sparse: sparse: symbol '__raw_spin_lock' was not declared. Should it be static? kernel/locking/spinlock.c:126:1: sparse: sparse: symbol '__raw_spin_lock_irqsave' was not declared. Should it be static? kernel/locking/spinlock.c:126:1: sparse: sparse: symbol '__raw_spin_lock_irq' was not declared. Should it be static? kernel/locking/spinlock.c:126:1: sparse: sparse: symbol '__raw_spin_lock_bh' was not declared. Should it be static? kernel/locking/spinlock.c:127:1: sparse: sparse: symbol '__raw_read_lock' was not declared. Should it be static? kernel/locking/spinlock.c:127:1: sparse: sparse: symbol '__raw_read_lock_irqsave' was not declared. Should it be static? kernel/locking/spinlock.c:127:1: sparse: sparse: symbol '__raw_read_lock_irq' was not declared. Should it be static? kernel/locking/spinlock.c:127:1: sparse: sparse: symbol '__raw_read_lock_bh' was not declared. Should it be static? kernel/locking/spinlock.c:128:1: sparse: sparse: symbol '__raw_write_lock' was not declared. Should it be static? kernel/locking/spinlock.c:128:1: sparse: sparse: symbol '__raw_write_lock_irqsave' was not declared. Should it be static? kernel/locking/spinlock.c:128:1: sparse: sparse: symbol '__raw_write_lock_irq' was not declared. Should it be static? kernel/locking/spinlock.c:128:1: sparse: sparse: symbol '__raw_write_lock_bh' was not declared. Should it be static? kernel/locking/spinlock.c:126:1: sparse: sparse: context imbalance in '__raw_spin_lock_irq' - wrong count at exit kernel/locking/spinlock.c:126:1: sparse: sparse: context imbalance in '__raw_spin_lock_bh' - wrong count at exit kernel/locking/spinlock.c:127:1: sparse: sparse: context imbalance in '__raw_read_lock_irq' - wrong count at exit kernel/locking/spinlock.c:127:1: sparse: sparse: context imbalance in '__raw_read_lock_bh' - wrong count at exit kernel/locking/spinlock.c:128:1: sparse: sparse: context imbalance in '__raw_write_lock_irq' - wrong count at exit kernel/locking/spinlock.c:128:1: sparse: sparse: context imbalance in '__raw_write_lock_bh' - wrong count at exit kernel/locking/spinlock.c:181:17: sparse: sparse: context imbalance in '_raw_spin_unlock' - unexpected unlock kernel/locking/spinlock.c:189:17: sparse: sparse: context imbalance in '_raw_spin_unlock_irqrestore' - unexpected unlock kernel/locking/spinlock.c:197:17: sparse: sparse: context imbalance in '_raw_spin_unlock_irq' - unexpected unlock kernel/locking/spinlock.c:205:17: sparse: sparse: context imbalance in '_raw_spin_unlock_bh' - unexpected unlock kernel/locking/spinlock.c: note: in included file (through arch/parisc/include/asm/atomic.h, include/linux/atomic.h, arch/parisc/include/asm/bitops.h, ...): arch/parisc/include/asm/spinlock.h:142:23: sparse: sparse: context imbalance in '_raw_read_unlock' - unexpected unlock arch/parisc/include/asm/spinlock.h:142:23: sparse: sparse: context imbalance in '_raw_read_unlock_irqrestore' - unexpected unlock arch/parisc/include/asm/spinlock.h:142:23: sparse: sparse: context imbalance in '_raw_read_unlock_irq' - unexpected unlock arch/parisc/include/asm/spinlock.h:142:23: sparse: sparse: context imbalance in '_raw_read_unlock_bh' - unexpected unlock arch/parisc/include/asm/spinlock.h:153:23: sparse: sparse: context imbalance in '_raw_write_unlock_irqrestore' - unexpected unlock arch/parisc/include/asm/spinlock.h:153:23: sparse: sparse: context imbalance in '_raw_write_unlock_bh' - unexpected unlock # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git remote update linus git checkout fbdc8f0f4891df7b5eb643ec0a509a4ac7dcfc2e vim +/_raw_write_unlock +153 arch/parisc/include/asm/spinlock.h ^1da177e4c3f41 include/asm-parisc/spinlock.h Linus Torvalds 2005-04-16 147 fbdc8f0f4891df arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 148 static inline void arch_write_unlock(arch_rwlock_t *rw) fbdc8f0f4891df arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 149 { fbdc8f0f4891df arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 150 unsigned long flags; fbdc8f0f4891df arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 151 fbdc8f0f4891df arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 152 local_irq_save(flags); fbdc8f0f4891df arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 @153 arch_spin_lock(&(rw->lock_mutex)); fbdc8f0f4891df arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 154 rw->counter = __ARCH_RW_LOCK_UNLOCKED__; fbdc8f0f4891df arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 155 arch_spin_unlock(&(rw->lock_mutex)); fbdc8f0f4891df arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 156 local_irq_restore(flags); ^1da177e4c3f41 include/asm-parisc/spinlock.h Linus Torvalds 2005-04-16 157 } ^1da177e4c3f41 include/asm-parisc/spinlock.h Linus Torvalds 2005-04-16 158 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org