Hi Xin, 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/Xin-Hao/mm-damon-dbgfs-Modify-Damon-dbfs-interface-dependency-in-Kconfig/20211121-012819 base: https://github.com/hnaz/linux-mm master config: riscv-randconfig-c006-20211121 (https://download.01.org/0day-ci/archive/20211126/202111261116.0jysSfsO-lkp@xxxxxxxxx/config) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/0day-ci/linux/commit/496f4e2cc535ba7b71a6ff2b82840693d413ae02 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Xin-Hao/mm-damon-dbgfs-Modify-Damon-dbfs-interface-dependency-in-Kconfig/20211121-012819 git checkout 496f4e2cc535ba7b71a6ff2b82840693d413ae02 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> mm/damon/dbgfs.c:409:3: error: implicit declaration of function 'damon_pa_set_primitives' [-Werror,-Wimplicit-function-declaration] damon_pa_set_primitives(ctx); ^ mm/damon/dbgfs.c:409:3: note: did you mean 'damon_va_set_primitives'? include/linux/damon.h:476:6: note: 'damon_va_set_primitives' declared here void damon_va_set_primitives(struct damon_ctx *ctx); ^ 1 error generated. vim +/damon_pa_set_primitives +409 mm/damon/dbgfs.c 4bc05954d00766 SeongJae Park 2021-09-07 353 4bc05954d00766 SeongJae Park 2021-09-07 354 static ssize_t dbgfs_target_ids_write(struct file *file, 4bc05954d00766 SeongJae Park 2021-09-07 355 const char __user *buf, size_t count, loff_t *ppos) 4bc05954d00766 SeongJae Park 2021-09-07 356 { 4bc05954d00766 SeongJae Park 2021-09-07 357 struct damon_ctx *ctx = file->private_data; 2ba00bca84ef3f SeongJae Park 2021-10-28 358 bool id_is_pid = true; 4bc05954d00766 SeongJae Park 2021-09-07 359 char *kbuf, *nrs; 4bc05954d00766 SeongJae Park 2021-09-07 360 unsigned long *targets; 4bc05954d00766 SeongJae Park 2021-09-07 361 ssize_t nr_targets; 4f521143b7d82a Rongwei Wang 2021-10-28 362 ssize_t ret; 4bc05954d00766 SeongJae Park 2021-09-07 363 int i; 4bc05954d00766 SeongJae Park 2021-09-07 364 4bc05954d00766 SeongJae Park 2021-09-07 365 kbuf = user_input_str(buf, count, ppos); 4bc05954d00766 SeongJae Park 2021-09-07 366 if (IS_ERR(kbuf)) 4bc05954d00766 SeongJae Park 2021-09-07 367 return PTR_ERR(kbuf); 4bc05954d00766 SeongJae Park 2021-09-07 368 4bc05954d00766 SeongJae Park 2021-09-07 369 nrs = kbuf; 2ba00bca84ef3f SeongJae Park 2021-10-28 370 if (!strncmp(kbuf, "paddr\n", count)) { 2ba00bca84ef3f SeongJae Park 2021-10-28 371 id_is_pid = false; 2ba00bca84ef3f SeongJae Park 2021-10-28 372 /* target id is meaningless here, but we set it just for fun */ 2ba00bca84ef3f SeongJae Park 2021-10-28 373 scnprintf(kbuf, count, "42 "); 2ba00bca84ef3f SeongJae Park 2021-10-28 374 } 4bc05954d00766 SeongJae Park 2021-09-07 375 4f521143b7d82a Rongwei Wang 2021-10-28 376 targets = str_to_target_ids(nrs, count, &nr_targets); 4bc05954d00766 SeongJae Park 2021-09-07 377 if (!targets) { 4bc05954d00766 SeongJae Park 2021-09-07 378 ret = -ENOMEM; 4bc05954d00766 SeongJae Park 2021-09-07 379 goto out; 4bc05954d00766 SeongJae Park 2021-09-07 380 } 4bc05954d00766 SeongJae Park 2021-09-07 381 2ba00bca84ef3f SeongJae Park 2021-10-28 382 if (id_is_pid) { 4bc05954d00766 SeongJae Park 2021-09-07 383 for (i = 0; i < nr_targets; i++) { 4bc05954d00766 SeongJae Park 2021-09-07 384 targets[i] = (unsigned long)find_get_pid( 4bc05954d00766 SeongJae Park 2021-09-07 385 (int)targets[i]); 4bc05954d00766 SeongJae Park 2021-09-07 386 if (!targets[i]) { 4bc05954d00766 SeongJae Park 2021-09-07 387 dbgfs_put_pids(targets, i); 4bc05954d00766 SeongJae Park 2021-09-07 388 ret = -EINVAL; 4bc05954d00766 SeongJae Park 2021-09-07 389 goto free_targets_out; 4bc05954d00766 SeongJae Park 2021-09-07 390 } 4bc05954d00766 SeongJae Park 2021-09-07 391 } 4bc05954d00766 SeongJae Park 2021-09-07 392 } 4bc05954d00766 SeongJae Park 2021-09-07 393 4bc05954d00766 SeongJae Park 2021-09-07 394 mutex_lock(&ctx->kdamond_lock); 4bc05954d00766 SeongJae Park 2021-09-07 395 if (ctx->kdamond) { 2ba00bca84ef3f SeongJae Park 2021-10-28 396 if (id_is_pid) 4bc05954d00766 SeongJae Park 2021-09-07 397 dbgfs_put_pids(targets, nr_targets); 4bc05954d00766 SeongJae Park 2021-09-07 398 ret = -EBUSY; 4bc05954d00766 SeongJae Park 2021-09-07 399 goto unlock_out; 4bc05954d00766 SeongJae Park 2021-09-07 400 } 4bc05954d00766 SeongJae Park 2021-09-07 401 2ba00bca84ef3f SeongJae Park 2021-10-28 402 /* remove targets with previously-set primitive */ 2ba00bca84ef3f SeongJae Park 2021-10-28 403 damon_set_targets(ctx, NULL, 0); 2ba00bca84ef3f SeongJae Park 2021-10-28 404 2ba00bca84ef3f SeongJae Park 2021-10-28 405 /* Configure the context for the address space type */ 2ba00bca84ef3f SeongJae Park 2021-10-28 406 if (id_is_pid) 2ba00bca84ef3f SeongJae Park 2021-10-28 407 damon_va_set_primitives(ctx); 2ba00bca84ef3f SeongJae Park 2021-10-28 408 else 2ba00bca84ef3f SeongJae Park 2021-10-28 @409 damon_pa_set_primitives(ctx); 2ba00bca84ef3f SeongJae Park 2021-10-28 410 4f521143b7d82a Rongwei Wang 2021-10-28 411 ret = damon_set_targets(ctx, targets, nr_targets); 4f521143b7d82a Rongwei Wang 2021-10-28 412 if (ret) { 2ba00bca84ef3f SeongJae Park 2021-10-28 413 if (id_is_pid) 4bc05954d00766 SeongJae Park 2021-09-07 414 dbgfs_put_pids(targets, nr_targets); 4f521143b7d82a Rongwei Wang 2021-10-28 415 } else { 4f521143b7d82a Rongwei Wang 2021-10-28 416 ret = count; 4bc05954d00766 SeongJae Park 2021-09-07 417 } 4bc05954d00766 SeongJae Park 2021-09-07 418 4bc05954d00766 SeongJae Park 2021-09-07 419 unlock_out: 4bc05954d00766 SeongJae Park 2021-09-07 420 mutex_unlock(&ctx->kdamond_lock); 4bc05954d00766 SeongJae Park 2021-09-07 421 free_targets_out: 4bc05954d00766 SeongJae Park 2021-09-07 422 kfree(targets); 4bc05954d00766 SeongJae Park 2021-09-07 423 out: 4bc05954d00766 SeongJae Park 2021-09-07 424 kfree(kbuf); 4bc05954d00766 SeongJae Park 2021-09-07 425 return ret; 4bc05954d00766 SeongJae Park 2021-09-07 426 } 4bc05954d00766 SeongJae Park 2021-09-07 427 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
