tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 12dcab98264cb7d9ede69cf67e579aa585d6e4b6 commit: 901dbb48d8a4f60af427f1ec67ac1247ff219f39 [22383/23403] nouveau: lock the client object tree. config: x86_64-buildonly-randconfig-002-20240801 (https://download.01.org/0day-ci/archive/20240801/202408012245.IRmWDQQn-lkp@i...) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240801/202408012245.IRmWDQQn-lkp@i...)

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@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202408012245.IRmWDQQn-lkp@intel.com/

All warnings (new ones prefixed by >>):

drivers/gpu/drm/nouveau/nvkm/core/object.c:37:19: warning: mixing declarations and code is a C99 extension [-Wdeclaration-after-statement] 37 | struct rb_node *node = client->objroot.rb_node; | ^ 1 warning generated.

...

drivers/gpu/drm/nouveau/nvkm/core/object.o: warning: objtool: nvkm_object_del()+0xd1: unreachable instruction