tree: https://github.com/intel/linux-intel-lts.git 5.4/preempt-rt head: 6fa41e866e0be2824b0f5efb593f8635ee2a3bde commit: 2d2e3dc79dbf54b9905e4086db001a25047d8c0c [6707/9039] Enable support for GNA drivers based on GNA API specification 2.0 config: x86_64-randconfig-r031-20200820 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 4deda57106f7c9b982a49cb907c33e3966c8de7f) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu git checkout 2d2e3dc79dbf54b9905e4086db001a25047d8c0c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 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 >>): void gna_dev_release(struct device *dev) ^ drivers/misc/gna/gna_drv.c:270:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void gna_dev_release(struct device *dev) ^ static 1 error generated. -- GNA_GEN2_FEATURES ^~~~~~~~~~~~~~~~~ drivers/misc/gna/gna_pci.c:37:21: note: expanded from macro 'GNA_GEN2_FEATURES' .max_layer_count = 4096 ^~~~ drivers/misc/gna/gna_pci.c:61:2: note: previous initialization is here GNA_GEN2_FEATURES ^~~~~~~~~~~~~~~~~ drivers/misc/gna/gna_pci.c:36:2: note: expanded from macro 'GNA_GEN2_FEATURES' GNA_GEN1_FEATURES, \ ^~~~~~~~~~~~~~~~~ drivers/misc/gna/gna_pci.c:33:21: note: expanded from macro 'GNA_GEN1_FEATURES' .max_layer_count = 1023 ^~~~ drivers/misc/gna/gna_pci.c:66:2: error: initializer overrides prior initialization of this subobject [-Werror,-Winitializer-overrides] GNA_GEN2_FEATURES ^~~~~~~~~~~~~~~~~ drivers/misc/gna/gna_pci.c:37:21: note: expanded from macro 'GNA_GEN2_FEATURES' .max_layer_count = 4096 ^~~~ drivers/misc/gna/gna_pci.c:66:2: note: previous initialization is here GNA_GEN2_FEATURES ^~~~~~~~~~~~~~~~~ drivers/misc/gna/gna_pci.c:36:2: note: expanded from macro 'GNA_GEN2_FEATURES' GNA_GEN1_FEATURES, \ ^~~~~~~~~~~~~~~~~ drivers/misc/gna/gna_pci.c:33:21: note: expanded from macro 'GNA_GEN1_FEATURES' .max_layer_count = 1023 ^~~~ 2 errors generated. # https://github.com/intel/linux-intel-lts/commit/2d2e3dc79dbf54b9905e4086d... git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-linux-intel-lts 5.4/preempt-rt git checkout 2d2e3dc79dbf54b9905e4086db001a25047d8c0c vim +/gna_dev_release +270 drivers/misc/gna/gna_drv.c 269 271 { 272 struct gna_private *gna_priv; 273 274 dev_dbg(dev, "%s enter\n", __func__); 275 276 gna_priv = dev_get_drvdata(dev); 277 278 __clear_bit(MINOR(dev->devt), gna_drv_priv.dev_map); 279 flush_workqueue(gna_priv->request_wq); 280 destroy_workqueue(gna_priv->request_wq); 281 idr_destroy(&gna_priv->memory_idr); 282 gna_mmu_free(gna_priv); 283 dev_set_drvdata(dev, NULL); 284 pci_set_drvdata(gna_priv->pdev, NULL); 285 286 kfree(gna_priv); 287 288 dev_dbg(dev, "%s exit\n", __func__); 289 } 290 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org