tree: git://linuxtv.org/mchehab/media-next.git master head: 83fac9617e226725b6e2db4a086465cdba2db1a5 commit: 83fac9617e226725b6e2db4a086465cdba2db1a5 [558/558] media: atomisp comment an unused code config: x86_64-allyesconfig (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 2388a096e7865c043e83ece4e26654bd3d1a20d5) 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 83fac9617e226725b6e2db4a086465cdba2db1a5 # 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: kbuild test robot All warnings (new ones prefixed by >>, old ones prefixed by <<): >> drivers/staging/media/atomisp/pci/atomisp_v4l2.c:357:47: warning: unused variable 'dfs_rules_byt_cr' [-Wunused-const-variable] static const struct atomisp_freq_scaling_rule dfs_rules_byt_cr[] = { ^ 1 warning generated. vim +/dfs_rules_byt_cr +357 drivers/staging/media/atomisp/pci/atomisp_v4l2.c 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 356 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 @357 static const struct atomisp_freq_scaling_rule dfs_rules_byt_cr[] = { 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 358 { 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 359 .width = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 360 .height = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 361 .fps = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 362 .isp_freq = ISP_FREQ_320MHZ, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 363 .run_mode = ATOMISP_RUN_MODE_VIDEO, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 364 }, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 365 { 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 366 .width = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 367 .height = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 368 .fps = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 369 .isp_freq = ISP_FREQ_320MHZ, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 370 .run_mode = ATOMISP_RUN_MODE_STILL_CAPTURE, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 371 }, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 372 { 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 373 .width = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 374 .height = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 375 .fps = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 376 .isp_freq = ISP_FREQ_320MHZ, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 377 .run_mode = ATOMISP_RUN_MODE_CONTINUOUS_CAPTURE, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 378 }, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 379 { 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 380 .width = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 381 .height = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 382 .fps = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 383 .isp_freq = ISP_FREQ_320MHZ, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 384 .run_mode = ATOMISP_RUN_MODE_PREVIEW, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 385 }, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 386 { 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 387 .width = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 388 .height = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 389 .fps = ISP_FREQ_RULE_ANY, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 390 .isp_freq = ISP_FREQ_320MHZ, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 391 .run_mode = ATOMISP_RUN_MODE_SDV, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 392 }, 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 393 }; 5e0947450d16de drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c Mauro Carvalho Chehab 2020-04-23 394 :::::: The code at line 357 was first introduced by commit :::::: 5e0947450d16de5fd59fa43d04a53c5df037d54b media: atomisp: remove table duplication from dfs tables :::::: TO: Mauro Carvalho Chehab :::::: CC: Mauro Carvalho Chehab --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org