Hi Laurent, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.7-rc4] [cannot apply to linuxtv-media/master anholt/for-next next-20200504] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Laurent-Pinchart/Drivers-for-the-BCM283x-CSI-2-CCP2-receiver-and-ISP/20200505-054310 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 9851a0dee7c28514f149f7e4f60ec1b06286cc1b config: c6x-allyesconfig (attached as .config) compiler: c6x-elf-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=c6x If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/staging/vc04_services/vc-sm-cma/vc_sm.c: In function 'cache_op_to_func': >> drivers/staging/vc04_services/vc-sm-cma/vc_sm.c:1265:10: error: 'dmac_flush_range' undeclared (first use in this function) 1265 | return dmac_flush_range; | ^~~~~~~~~~~~~~~~ drivers/staging/vc04_services/vc-sm-cma/vc_sm.c:1265:10: note: each undeclared identifier is reported only once for each function it appears in vim +/dmac_flush_range +1265 drivers/staging/vc04_services/vc-sm-cma/vc_sm.c 1252 1253 #ifndef CONFIG_ARM64 1254 /* Converts VCSM_CACHE_OP_* to an operating function. */ 1255 static void (*cache_op_to_func(const unsigned int cache_op)) 1256 (const void*, const void*) 1257 { 1258 switch (cache_op) { 1259 case VC_SM_CACHE_OP_NOP: 1260 return NULL; 1261 1262 case VC_SM_CACHE_OP_INV: 1263 case VC_SM_CACHE_OP_CLEAN: 1264 case VC_SM_CACHE_OP_FLUSH: > 1265 return dmac_flush_range; 1266 1267 default: 1268 pr_err("[%s]: Invalid cache_op: 0x%08x\n", __func__, cache_op); 1269 return NULL; 1270 } 1271 } 1272 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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