Hi, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on next-20191203] [cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 drm-exynos/exynos-drm-next v5.4] [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/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604 base: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0 reproduce: # apt-get install sparse # sparse version: v0.6.1-91-g817270f-dirty make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c:28:43: sparse: sparse: not enough arguments for function drm_dp_calc_pbn_mode vim +28 drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c 7cbce45d624322 Lyude Paul 2019-09-03 13 7cbce45d624322 Lyude Paul 2019-09-03 14 int igt_dp_mst_calc_pbn_mode(void *ignored) 7cbce45d624322 Lyude Paul 2019-09-03 15 { 7cbce45d624322 Lyude Paul 2019-09-03 16 int pbn, i; 7cbce45d624322 Lyude Paul 2019-09-03 17 const struct { 7cbce45d624322 Lyude Paul 2019-09-03 18 int rate; 7cbce45d624322 Lyude Paul 2019-09-03 19 int bpp; 7cbce45d624322 Lyude Paul 2019-09-03 20 int expected; 7cbce45d624322 Lyude Paul 2019-09-03 21 } test_params[] = { 7cbce45d624322 Lyude Paul 2019-09-03 22 { 154000, 30, 689 }, 7cbce45d624322 Lyude Paul 2019-09-03 23 { 234000, 30, 1047 }, 7cbce45d624322 Lyude Paul 2019-09-03 24 { 297000, 24, 1063 }, 7cbce45d624322 Lyude Paul 2019-09-03 25 }; 7cbce45d624322 Lyude Paul 2019-09-03 26 7cbce45d624322 Lyude Paul 2019-09-03 27 for (i = 0; i < ARRAY_SIZE(test_params); i++) { 7cbce45d624322 Lyude Paul 2019-09-03 @28 pbn = drm_dp_calc_pbn_mode(test_params[i].rate, 7cbce45d624322 Lyude Paul 2019-09-03 29 test_params[i].bpp); 7cbce45d624322 Lyude Paul 2019-09-03 30 FAIL(pbn != test_params[i].expected, 7cbce45d624322 Lyude Paul 2019-09-03 31 "Expected PBN %d for clock %d bpp %d, got %d\n", 7cbce45d624322 Lyude Paul 2019-09-03 32 test_params[i].expected, test_params[i].rate, 7cbce45d624322 Lyude Paul 2019-09-03 33 test_params[i].bpp, pbn); 7cbce45d624322 Lyude Paul 2019-09-03 34 } 7cbce45d624322 Lyude Paul 2019-09-03 35 7cbce45d624322 Lyude Paul 2019-09-03 36 return 0; 7cbce45d624322 Lyude Paul 2019-09-03 37 } 2f015ec6eab693 Lyude Paul 2019-09-03 38 :::::: The code at line 28 was first introduced by commit :::::: 7cbce45d6243225914b5c967b4ee927a2327842a drm/dp_mst: Move test_calc_pbn_mode() into an actual selftest :::::: TO: Lyude Paul <lyude@xxxxxxxxxx> :::::: CC: Lyude Paul <lyude@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
