From: kernel test robot <lkp@intel.com>
To: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: oe-kbuild-all@lists.linux.dev,
Andrew Morton <akpm@linux-foundation.org>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: [akpm-mm:mm-unstable 23/225] mm/page_ext.c:323:29: warning: variable 'pgdat' set but not used
Date: Fri, 9 Aug 2024 01:22:04 +0800 [thread overview]
Message-ID: <202408090125.PxGk56zJ-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
head: 275d686abcb590d862b74e2670533d93fd10e58c
commit: 129bae385a761c7fd88874ad46e27d7eb739bd80 [23/225] mm: don't account memmap per node
config: i386-randconfig-141-20240808 (https://download.01.org/0day-ci/archive/20240809/202408090125.PxGk56zJ-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240809/202408090125.PxGk56zJ-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408090125.PxGk56zJ-lkp@intel.com/
All warnings (new ones prefixed by >>):
mm/page_ext.c: In function 'free_page_ext':
>> mm/page_ext.c:323:29: warning: variable 'pgdat' set but not used [-Wunused-but-set-variable]
323 | struct pglist_data *pgdat;
| ^~~~~
vim +/pgdat +323 mm/page_ext.c
76af6a054da405 Dave Hansen 2021-10-18 318
eefa864b701d78 Joonsoo Kim 2014-12-12 319 static void free_page_ext(void *addr)
eefa864b701d78 Joonsoo Kim 2014-12-12 320 {
eefa864b701d78 Joonsoo Kim 2014-12-12 321 size_t table_size;
15995a35247442 Sourav Panda 2024-06-05 322 struct page *page;
15995a35247442 Sourav Panda 2024-06-05 @323 struct pglist_data *pgdat;
eefa864b701d78 Joonsoo Kim 2014-12-12 324
5556cfe8d994d5 Vlastimil Babka 2019-10-14 325 table_size = page_ext_size * PAGES_PER_SECTION;
eefa864b701d78 Joonsoo Kim 2014-12-12 326
15995a35247442 Sourav Panda 2024-06-05 327 if (is_vmalloc_addr(addr)) {
15995a35247442 Sourav Panda 2024-06-05 328 page = vmalloc_to_page(addr);
15995a35247442 Sourav Panda 2024-06-05 329 pgdat = page_pgdat(page);
129bae385a761c Pasha Tatashin 2024-08-07 330 mod_memmap(-1L * (DIV_ROUND_UP(table_size, PAGE_SIZE)));
15995a35247442 Sourav Panda 2024-06-05 331 vfree(addr);
15995a35247442 Sourav Panda 2024-06-05 332 } else {
15995a35247442 Sourav Panda 2024-06-05 333 page = virt_to_page(addr);
15995a35247442 Sourav Panda 2024-06-05 334 pgdat = page_pgdat(page);
129bae385a761c Pasha Tatashin 2024-08-07 335 mod_memmap(-1L * (DIV_ROUND_UP(table_size, PAGE_SIZE)));
eefa864b701d78 Joonsoo Kim 2014-12-12 336 BUG_ON(PageReserved(page));
0c81585499601a Qian Cai 2019-03-05 337 kmemleak_free(addr);
eefa864b701d78 Joonsoo Kim 2014-12-12 338 free_pages_exact(addr, table_size);
eefa864b701d78 Joonsoo Kim 2014-12-12 339 }
eefa864b701d78 Joonsoo Kim 2014-12-12 340 }
eefa864b701d78 Joonsoo Kim 2014-12-12 341
:::::: The code at line 323 was first introduced by commit
:::::: 15995a35247442aefa0ffe36a6dad51cb46b0918 mm: report per-page metadata information
:::::: TO: Sourav Panda <souravpanda@google.com>
:::::: CC: Andrew Morton <akpm@linux-foundation.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2024-08-08 17:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-08 17:22 kernel test robot [this message]
2024-08-08 17:33 ` Pasha Tatashin
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