Hi Pedro, Thank you for the patch! Yet something to improve: [auto build test ERROR on hnaz-mm/master] url: https://github.com/0day-ci/linux/commits/Pedro-Demarchi-Gomes/mm-damon-Add-option-to-monitor-only-writes/20220203-211407 base: https://github.com/hnaz/linux-mm master config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20220204/202202040626.isVzU9Xl-lkp@xxxxxxxxx/config) compiler: arceb-elf-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/0958bb7e2514b62f174b8e5ccfdcff07ce2a2b6b git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Pedro-Demarchi-Gomes/mm-damon-Add-option-to-monitor-only-writes/20220203-211407 git checkout 0958bb7e2514b62f174b8e5ccfdcff07ce2a2b6b # 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=arc SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from mm/damon/core.c:1123: mm/damon/core-test.h: In function 'damon_test_merge_two': >> mm/damon/core-test.h:154:33: error: passing argument 1 of 'damon_merge_two_regions' from incompatible pointer type [-Werror=incompatible-pointer-types] 154 | damon_merge_two_regions(t, r, r2); | ^ | | | struct damon_target * mm/damon/core.c:761:55: note: expected 'struct damon_ctx *' but argument is of type 'struct damon_target *' 761 | static void damon_merge_two_regions(struct damon_ctx *c, struct damon_target *t, | ~~~~~~~~~~~~~~~~~~^ In file included from mm/damon/core.c:1123: mm/damon/core-test.h:154:36: error: passing argument 2 of 'damon_merge_two_regions' from incompatible pointer type [-Werror=incompatible-pointer-types] 154 | damon_merge_two_regions(t, r, r2); | ^ | | | struct damon_region * mm/damon/core.c:761:79: note: expected 'struct damon_target *' but argument is of type 'struct damon_region *' 761 | static void damon_merge_two_regions(struct damon_ctx *c, struct damon_target *t, | ~~~~~~~~~~~~~~~~~~~~~^ In file included from mm/damon/core.c:1123: >> mm/damon/core-test.h:154:9: error: too few arguments to function 'damon_merge_two_regions' 154 | damon_merge_two_regions(t, r, r2); | ^~~~~~~~~~~~~~~~~~~~~~~ mm/damon/core.c:761:13: note: declared here 761 | static void damon_merge_two_regions(struct damon_ctx *c, struct damon_target *t, | ^~~~~~~~~~~~~~~~~~~~~~~ In file included from mm/damon/core.c:1123: mm/damon/core-test.h: In function 'damon_test_merge_regions_of': >> mm/damon/core-test.h:201:32: error: passing argument 1 of 'damon_merge_regions_of' from incompatible pointer type [-Werror=incompatible-pointer-types] 201 | damon_merge_regions_of(t, 9, 9999); | ^ | | | struct damon_target * mm/damon/core.c:787:54: note: expected 'struct damon_ctx *' but argument is of type 'struct damon_target *' 787 | static void damon_merge_regions_of(struct damon_ctx *c, struct damon_target *t, unsigned int thres, | ~~~~~~~~~~~~~~~~~~^ In file included from mm/damon/core.c:1123: mm/damon/core-test.h:201:35: warning: passing argument 2 of 'damon_merge_regions_of' makes pointer from integer without a cast [-Wint-conversion] 201 | damon_merge_regions_of(t, 9, 9999); | ^ | | | int mm/damon/core.c:787:78: note: expected 'struct damon_target *' but argument is of type 'int' 787 | static void damon_merge_regions_of(struct damon_ctx *c, struct damon_target *t, unsigned int thres, | ~~~~~~~~~~~~~~~~~~~~~^ In file included from mm/damon/core.c:1123: >> mm/damon/core-test.h:201:9: error: too few arguments to function 'damon_merge_regions_of' 201 | damon_merge_regions_of(t, 9, 9999); | ^~~~~~~~~~~~~~~~~~~~~~ mm/damon/core.c:787:13: note: declared here 787 | static void damon_merge_regions_of(struct damon_ctx *c, struct damon_target *t, unsigned int thres, | ^~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/perf_event.h:25, from include/linux/trace_events.h:10, from include/trace/trace_events.h:21, from include/trace/define_trace.h:102, from include/trace/events/damon.h:43, from mm/damon/core.c:19: At top level: arch/arc/include/asm/perf_event.h:126:27: warning: 'arc_pmu_cache_map' defined but not used [-Wunused-const-variable=] 126 | static const unsigned int arc_pmu_cache_map[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { | ^~~~~~~~~~~~~~~~~ arch/arc/include/asm/perf_event.h:91:27: warning: 'arc_pmu_ev_hw_map' defined but not used [-Wunused-const-variable=] 91 | static const char * const arc_pmu_ev_hw_map[] = { | ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/damon_merge_two_regions +154 mm/damon/core-test.h 17ccae8bb5c928 SeongJae Park 2021-09-07 139 17ccae8bb5c928 SeongJae Park 2021-09-07 140 static void damon_test_merge_two(struct kunit *test) 17ccae8bb5c928 SeongJae Park 2021-09-07 141 { 17ccae8bb5c928 SeongJae Park 2021-09-07 142 struct damon_target *t; 17ccae8bb5c928 SeongJae Park 2021-09-07 143 struct damon_region *r, *r2, *r3; 17ccae8bb5c928 SeongJae Park 2021-09-07 144 int i; 17ccae8bb5c928 SeongJae Park 2021-09-07 145 17ccae8bb5c928 SeongJae Park 2021-09-07 146 t = damon_new_target(42); 17ccae8bb5c928 SeongJae Park 2021-09-07 147 r = damon_new_region(0, 100); 17ccae8bb5c928 SeongJae Park 2021-09-07 148 r->nr_accesses = 10; 17ccae8bb5c928 SeongJae Park 2021-09-07 149 damon_add_region(r, t); 17ccae8bb5c928 SeongJae Park 2021-09-07 150 r2 = damon_new_region(100, 300); 17ccae8bb5c928 SeongJae Park 2021-09-07 151 r2->nr_accesses = 20; 17ccae8bb5c928 SeongJae Park 2021-09-07 152 damon_add_region(r2, t); 17ccae8bb5c928 SeongJae Park 2021-09-07 153 17ccae8bb5c928 SeongJae Park 2021-09-07 @154 damon_merge_two_regions(t, r, r2); 17ccae8bb5c928 SeongJae Park 2021-09-07 155 KUNIT_EXPECT_EQ(test, r->ar.start, 0ul); 17ccae8bb5c928 SeongJae Park 2021-09-07 156 KUNIT_EXPECT_EQ(test, r->ar.end, 300ul); 17ccae8bb5c928 SeongJae Park 2021-09-07 157 KUNIT_EXPECT_EQ(test, r->nr_accesses, 16u); 17ccae8bb5c928 SeongJae Park 2021-09-07 158 17ccae8bb5c928 SeongJae Park 2021-09-07 159 i = 0; 17ccae8bb5c928 SeongJae Park 2021-09-07 160 damon_for_each_region(r3, t) { 17ccae8bb5c928 SeongJae Park 2021-09-07 161 KUNIT_EXPECT_PTR_EQ(test, r, r3); 17ccae8bb5c928 SeongJae Park 2021-09-07 162 i++; 17ccae8bb5c928 SeongJae Park 2021-09-07 163 } 17ccae8bb5c928 SeongJae Park 2021-09-07 164 KUNIT_EXPECT_EQ(test, i, 1); 17ccae8bb5c928 SeongJae Park 2021-09-07 165 17ccae8bb5c928 SeongJae Park 2021-09-07 166 damon_free_target(t); 17ccae8bb5c928 SeongJae Park 2021-09-07 167 } 17ccae8bb5c928 SeongJae Park 2021-09-07 168 17ccae8bb5c928 SeongJae Park 2021-09-07 169 static struct damon_region *__nth_region_of(struct damon_target *t, int idx) 17ccae8bb5c928 SeongJae Park 2021-09-07 170 { 17ccae8bb5c928 SeongJae Park 2021-09-07 171 struct damon_region *r; 17ccae8bb5c928 SeongJae Park 2021-09-07 172 unsigned int i = 0; 17ccae8bb5c928 SeongJae Park 2021-09-07 173 17ccae8bb5c928 SeongJae Park 2021-09-07 174 damon_for_each_region(r, t) { 17ccae8bb5c928 SeongJae Park 2021-09-07 175 if (i++ == idx) 17ccae8bb5c928 SeongJae Park 2021-09-07 176 return r; 17ccae8bb5c928 SeongJae Park 2021-09-07 177 } 17ccae8bb5c928 SeongJae Park 2021-09-07 178 17ccae8bb5c928 SeongJae Park 2021-09-07 179 return NULL; 17ccae8bb5c928 SeongJae Park 2021-09-07 180 } 17ccae8bb5c928 SeongJae Park 2021-09-07 181 17ccae8bb5c928 SeongJae Park 2021-09-07 182 static void damon_test_merge_regions_of(struct kunit *test) 17ccae8bb5c928 SeongJae Park 2021-09-07 183 { 17ccae8bb5c928 SeongJae Park 2021-09-07 184 struct damon_target *t; 17ccae8bb5c928 SeongJae Park 2021-09-07 185 struct damon_region *r; 17ccae8bb5c928 SeongJae Park 2021-09-07 186 unsigned long sa[] = {0, 100, 114, 122, 130, 156, 170, 184}; 17ccae8bb5c928 SeongJae Park 2021-09-07 187 unsigned long ea[] = {100, 112, 122, 130, 156, 170, 184, 230}; 17ccae8bb5c928 SeongJae Park 2021-09-07 188 unsigned int nrs[] = {0, 0, 10, 10, 20, 30, 1, 2}; 17ccae8bb5c928 SeongJae Park 2021-09-07 189 17ccae8bb5c928 SeongJae Park 2021-09-07 190 unsigned long saddrs[] = {0, 114, 130, 156, 170}; 17ccae8bb5c928 SeongJae Park 2021-09-07 191 unsigned long eaddrs[] = {112, 130, 156, 170, 230}; 17ccae8bb5c928 SeongJae Park 2021-09-07 192 int i; 17ccae8bb5c928 SeongJae Park 2021-09-07 193 17ccae8bb5c928 SeongJae Park 2021-09-07 194 t = damon_new_target(42); 17ccae8bb5c928 SeongJae Park 2021-09-07 195 for (i = 0; i < ARRAY_SIZE(sa); i++) { 17ccae8bb5c928 SeongJae Park 2021-09-07 196 r = damon_new_region(sa[i], ea[i]); 17ccae8bb5c928 SeongJae Park 2021-09-07 197 r->nr_accesses = nrs[i]; 17ccae8bb5c928 SeongJae Park 2021-09-07 198 damon_add_region(r, t); 17ccae8bb5c928 SeongJae Park 2021-09-07 199 } 17ccae8bb5c928 SeongJae Park 2021-09-07 200 17ccae8bb5c928 SeongJae Park 2021-09-07 @201 damon_merge_regions_of(t, 9, 9999); 17ccae8bb5c928 SeongJae Park 2021-09-07 202 /* 0-112, 114-130, 130-156, 156-170 */ 17ccae8bb5c928 SeongJae Park 2021-09-07 203 KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 5u); 17ccae8bb5c928 SeongJae Park 2021-09-07 204 for (i = 0; i < 5; i++) { 17ccae8bb5c928 SeongJae Park 2021-09-07 205 r = __nth_region_of(t, i); 17ccae8bb5c928 SeongJae Park 2021-09-07 206 KUNIT_EXPECT_EQ(test, r->ar.start, saddrs[i]); 17ccae8bb5c928 SeongJae Park 2021-09-07 207 KUNIT_EXPECT_EQ(test, r->ar.end, eaddrs[i]); 17ccae8bb5c928 SeongJae Park 2021-09-07 208 } 17ccae8bb5c928 SeongJae Park 2021-09-07 209 damon_free_target(t); 17ccae8bb5c928 SeongJae Park 2021-09-07 210 } 17ccae8bb5c928 SeongJae Park 2021-09-07 211 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx