Hi Bibo, kernel test robot noticed the following build errors: [auto build test ERROR on 7846b618e0a4c3e08888099d1d4512722b39ca99] url: https://github.com/intel-lab-lkp/linux/commits/Bibo-Mao/LoongArch-KVM-Add-paravirt-qspinlock-in-kvm-side/20240723-160536 base: 7846b618e0a4c3e08888099d1d4512722b39ca99 patch link: https://lore.kernel.org/r/20240723073825.1811600-3-maobibo%40loongson.cn patch subject: [PATCH 2/2] LoongArch: KVM: Add paravirt qspinlock in guest side config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20240724/202407240320.qqd1uWiE-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240724/202407240320.qqd1uWiE-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202407240320.qqd1uWiE-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): >> arch/loongarch/kernel/paravirt.c:309: warning: expecting prototype for queued_spin_unlock(). Prototype was for native_queued_spin_unlock() instead -- In file included from include/linux/atomic.h:80, from include/asm-generic/bitops/atomic.h:5, from arch/loongarch/include/asm/bitops.h:27, from include/linux/bitops.h:63, from include/linux/kernel.h:23, from include/linux/cpumask.h:11, from include/linux/smp.h:13, from kernel/locking/qspinlock.c:16: kernel/locking/qspinlock_paravirt.h: In function 'pv_kick_node': >> include/linux/atomic/atomic-arch-fallback.h:242:34: error: initialization of 'u8 *' {aka 'unsigned char *'} from incompatible pointer type 'enum vcpu_state *' [-Wincompatible-pointer-types] 242 | typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \ | ^ include/linux/atomic/atomic-instrumented.h:4908:9: note: in expansion of macro 'raw_try_cmpxchg_relaxed' 4908 | raw_try_cmpxchg_relaxed(__ai_ptr, __ai_oldp, __VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/locking/qspinlock_paravirt.h:377:14: note: in expansion of macro 'try_cmpxchg_relaxed' 377 | if (!try_cmpxchg_relaxed(&pn->state, &old, vcpu_hashed)) | ^~~~~~~~~~~~~~~~~~~ vim +309 arch/loongarch/kernel/paravirt.c 303 304 /** 305 * queued_spin_unlock - release a queued spinlock 306 * @lock : Pointer to queued spinlock structure 307 */ 308 static void native_queued_spin_unlock(struct qspinlock *lock) > 309 { 310 /* 311 * unlock() needs release semantics: 312 */ 313 smp_store_release(&lock->locked, 0); 314 } 315 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
