* [linux-stable-rc:linux-4.19.y 1441/1453] drivers/base/node.c:429:5: warning: no previous prototype for 'register_mem_block_under_node_early'
@ 2020-10-08 17:40 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2020-10-08 17:40 UTC (permalink / raw)
To: Laurent Dufour
Cc: kbuild-all, Greg Kroah-Hartman, Andrew Morton,
Linux Memory Management List, David Hildenbrand, Oscar Salvador
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
head: 11bdb6b2eb736558e5a82e1fc665bf434e2304ae
commit: b6f69f72c15d7f973f5709c5351f378f235b3654 [1441/1453] mm: don't rely on system state to detect hot-plug operations
config: powerpc-randconfig-r036-20201008 (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=b6f69f72c15d7f973f5709c5351f378f235b3654
git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
git fetch --no-tags linux-stable-rc linux-4.19.y
git checkout b6f69f72c15d7f973f5709c5351f378f235b3654
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/base/node.c:429:5: warning: no previous prototype for 'register_mem_block_under_node_early' [-Wmissing-prototypes]
429 | int register_mem_block_under_node_early(struct memory_block *mem_blk, void *arg)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/register_mem_block_under_node_early +429 drivers/base/node.c
427
428 /* register memory section under specified node if it spans that node */
> 429 int register_mem_block_under_node_early(struct memory_block *mem_blk, void *arg)
430 {
431 int nid = *(int *)arg;
432 unsigned long pfn, sect_start_pfn, sect_end_pfn;
433
434 sect_start_pfn = section_nr_to_pfn(mem_blk->start_section_nr);
435 sect_end_pfn = section_nr_to_pfn(mem_blk->end_section_nr);
436 sect_end_pfn += PAGES_PER_SECTION - 1;
437 for (pfn = sect_start_pfn; pfn <= sect_end_pfn; pfn++) {
438 int page_nid;
439
440 /*
441 * memory block could have several absent sections from start.
442 * skip pfn range from absent section
443 */
444 if (!pfn_present(pfn)) {
445 pfn = round_down(pfn + PAGES_PER_SECTION,
446 PAGES_PER_SECTION) - 1;
447 continue;
448 }
449
450 /*
451 * We need to check if page belongs to nid only at the boot
452 * case because node's ranges can be interleaved.
453 */
454 page_nid = get_nid_for_pfn(pfn);
455 if (page_nid < 0)
456 continue;
457 if (page_nid != nid)
458 continue;
459
460 return do_register_memory_block_under_node(nid, mem_blk);
461 }
462 /* mem section does not span the specified node */
463 return 0;
464 }
465
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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