tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.10 head: 2be994c1bc8af2595853df3b93e55eb46357bf4f commit: c0b118f37e5d5f20ae8369c124961e39087075c8 [9126/11292] UPSTREAM: drm/nouveau/mc/tu102: Fix MMU fault interrupts on Turing config: parisc-randconfig-r034-20210513 (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-5.10 git checkout c0b118f37e5d5f20ae8369c124961e39087075c8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=parisc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): 50 | tu102_mc_intr_unarm(struct nvkm_mc *base) | ^~~~~~~~~~~~~~~~~~~ 62 | tu102_mc_intr_rearm(struct nvkm_mc *base) | ^~~~~~~~~~~~~~~~~~~ 74 | tu102_mc_intr_mask(struct nvkm_mc *base, u32 mask, u32 intr) | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/nouveau/nvkm/subdev/mc/tu102.c:132:1: error: no previous prototype for 'tu102_mc_new_' [-Werror=missing-prototypes] 132 | tu102_mc_new_(const struct nvkm_mc_func *func, struct nvkm_device *device, | ^~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/tu102_mc_intr_unarm +50 drivers/gpu/drm/nouveau/nvkm/subdev/mc/tu102.c 48 49 void 51 { 52 struct tu102_mc *mc = tu102_mc(base); 53 unsigned long flags; 54 55 spin_lock_irqsave(&mc->lock, flags); 56 mc->intr = false; 57 tu102_mc_intr_update(mc); 58 spin_unlock_irqrestore(&mc->lock, flags); 59 } 60 61 void 63 { 64 struct tu102_mc *mc = tu102_mc(base); 65 unsigned long flags; 66 67 spin_lock_irqsave(&mc->lock, flags); 68 mc->intr = true; 69 tu102_mc_intr_update(mc); 70 spin_unlock_irqrestore(&mc->lock, flags); 71 } 72 73 void 75 { 76 struct tu102_mc *mc = tu102_mc(base); 77 unsigned long flags; 78 79 spin_lock_irqsave(&mc->lock, flags); 80 mc->mask = (mc->mask & ~mask) | intr; 81 tu102_mc_intr_update(mc); 82 spin_unlock_irqrestore(&mc->lock, flags); 83 } 84 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org