CC: kbuild-all(a)lists.01.org CC: linux-kernel(a)vger.kernel.org TO: Nicholas Piggin CC: Peter Zijlstra CC: "Steven Rostedt (VMware)" CC: Thomas Gleixner tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f55966571d5eb2876a11e48e798b4592fa1ffbb7 commit: 044d0d6de9f50192f9697583504a382347ee95ca lockdep: Only trace IRQ edges date: 11 months ago :::::: branch date: 11 hours ago :::::: commit date: 11 months ago config: mips-randconfig-s031-20210709 (attached as .config) compiler: mips-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: v0.6.3-341-g8af24329-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=044d0d6de9f50192f9697583504a382347ee95ca git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 044d0d6de9f50192f9697583504a382347ee95ca # 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__' O=build_dir ARCH=mips SHELL=/bin/bash drivers/gpu/drm/vkms/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) command-line: note: in included file: builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQUIRE redefined builtin:0:0: sparse: this was the original definition builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_SEQ_CST redefined builtin:0:0: sparse: this was the original definition builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQ_REL redefined builtin:0:0: sparse: this was the original definition builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_RELEASE redefined builtin:0:0: sparse: this was the original definition drivers/gpu/drm/vkms/vkms_crtc.c: note: in included file (through include/linux/radix-tree.h, include/linux/idr.h, include/linux/kernfs.h, ...): >> include/linux/spinlock.h:379:9: sparse: sparse: context imbalance in 'vkms_crtc_atomic_begin' - wrong count at exit drivers/gpu/drm/vkms/vkms_crtc.c:252:39: sparse: sparse: context imbalance in 'vkms_crtc_atomic_flush' - unexpected unlock vim +/vkms_crtc_atomic_begin +379 include/linux/spinlock.h c2f21ce2e31286 Thomas Gleixner 2009-12-02 376 3490565b633c70 Denys Vlasenko 2015-07-13 377 static __always_inline void spin_lock_irq(spinlock_t *lock) c2f21ce2e31286 Thomas Gleixner 2009-12-02 378 { c2f21ce2e31286 Thomas Gleixner 2009-12-02 @379 raw_spin_lock_irq(&lock->rlock); c2f21ce2e31286 Thomas Gleixner 2009-12-02 380 } c2f21ce2e31286 Thomas Gleixner 2009-12-02 381 :::::: The code at line 379 was first introduced by commit :::::: c2f21ce2e31286a0a32f8da0a7856e9ca1122ef3 locking: Implement new raw_spinlock :::::: TO: Thomas Gleixner :::::: CC: Thomas Gleixner --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org