Hi "Christian, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.17-rc7 next-20220310] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Christian-K-nig/dma-buf-add-dma_fence_unwrap/20220311-190352 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 79b00034e9dcd2b065c1665c8b42f62b6b80a9be config: microblaze-randconfig-r011-20220310 (https://download.01.org/0day-ci/archive/20220311/202203112305.WcEordi2-lkp@xxxxxxxxx/config) compiler: microblaze-linux-gcc (GCC) 11.2.0 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 # https://github.com/0day-ci/linux/commit/088aa14c0f5cad378854823fa661ee145dd2c01b git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Christian-K-nig/dma-buf-add-dma_fence_unwrap/20220311-190352 git checkout 088aa14c0f5cad378854823fa661ee145dd2c01b # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=microblaze SHELL=/bin/bash drivers/dma-buf/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from drivers/dma-buf/st-dma-fence-unwrap.c:7: include/linux/dma-fence-unwrap.h: In function 'dma_fence_unwrap_array': include/linux/dma-fence-unwrap.h:44:25: error: implicit declaration of function 'dma_fence_chain_contained'; did you mean 'dma_fence_chain_init'? [-Werror=implicit-function-declaration] 44 | cursor->array = dma_fence_chain_contained(cursor->chain); | ^~~~~~~~~~~~~~~~~~~~~~~~~ | dma_fence_chain_init include/linux/dma-fence-unwrap.h:44:23: warning: assignment to 'struct dma_fence *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 44 | cursor->array = dma_fence_chain_contained(cursor->chain); | ^ include/linux/dma-fence-unwrap.h:46:16: error: implicit declaration of function 'dma_fence_array_first'; did you mean 'dma_fence_array_create'? [-Werror=implicit-function-declaration] 46 | return dma_fence_array_first(cursor->array); | ^~~~~~~~~~~~~~~~~~~~~ | dma_fence_array_create include/linux/dma-fence-unwrap.h:46:16: warning: returning 'int' from a function with return type 'struct dma_fence *' makes pointer from integer without a cast [-Wint-conversion] 46 | return dma_fence_array_first(cursor->array); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dma-fence-unwrap.h: In function 'dma_fence_unwrap_next': include/linux/dma-fence-unwrap.h:77:15: error: implicit declaration of function 'dma_fence_array_next'; did you mean 'dma_fence_unwrap_next'? [-Werror=implicit-function-declaration] 77 | tmp = dma_fence_array_next(cursor->array, cursor->index); | ^~~~~~~~~~~~~~~~~~~~ | dma_fence_unwrap_next include/linux/dma-fence-unwrap.h:77:13: warning: assignment to 'struct dma_fence *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 77 | tmp = dma_fence_array_next(cursor->array, cursor->index); | ^ drivers/dma-buf/st-dma-fence-unwrap.c: In function 'unwrap_array': >> drivers/dma-buf/st-dma-fence-unwrap.c:133:13: warning: variable 'err' set but not used [-Wunused-but-set-variable] 133 | int err = 0; | ^~~ drivers/dma-buf/st-dma-fence-unwrap.c: In function 'unwrap_chain': drivers/dma-buf/st-dma-fence-unwrap.c:175:13: warning: variable 'err' set but not used [-Wunused-but-set-variable] 175 | int err = 0; | ^~~ drivers/dma-buf/st-dma-fence-unwrap.c: In function 'unwrap_chain_array': drivers/dma-buf/st-dma-fence-unwrap.c:217:13: warning: variable 'err' set but not used [-Wunused-but-set-variable] 217 | int err = 0; | ^~~ cc1: some warnings being treated as errors vim +/err +133 drivers/dma-buf/st-dma-fence-unwrap.c 128 129 static int unwrap_array(void *arg) 130 { 131 struct dma_fence *fence, *f1, *f2, *array; 132 struct dma_fence_unwrap iter; > 133 int err = 0; 134 135 f1 = mock_fence(); 136 if (!f1) 137 return -ENOMEM; 138 139 f2 = mock_fence(); 140 if (!f2) { 141 dma_fence_put(f1); 142 return -ENOMEM; 143 } 144 145 array = mock_array(2, f1, f2); 146 if (!array) 147 return -ENOMEM; 148 149 dma_fence_unwrap_for_each(fence, &iter, array) { 150 if (fence == f1) { 151 f1 = NULL; 152 } else if (fence == f2) { 153 f2 = NULL; 154 } else { 155 pr_err("Unexpected fence!\n"); 156 err = -EINVAL; 157 } 158 } 159 160 if (f1 || f2) { 161 pr_err("Not all fences seen!\n"); 162 err = -EINVAL; 163 } 164 165 dma_fence_signal(f1); 166 dma_fence_signal(f2); 167 dma_fence_put(array); 168 return 0; 169 } 170 --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
