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Message-ID: <202111261116.0jysSfsO-lkp@intel.com>
Date: Fri, 26 Nov 2021 11:51:38 +0800
From: kernel test robot <lkp@...el.com>
To: Xin Hao <xhao@...ux.alibaba.com>, sj@...nel.org
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
xhao@...ux.alibaba.com, akpm@...ux-foundation.org,
linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V1 1/2] mm/damon/dbgfs: Modify Damon dbfs interface
dependency in Kconfig
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@intel.com/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@...el.com>
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@lists.01.org
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