Hi Baoquan, [auto build test ERROR on tip/x86/core] [also build test ERROR on v4.14-rc6 next-20171018] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Baoquan-He/x86-mm-64-Rename-the-argument-size-as-nr_pages-in-register_page_bootmem_memmap/20171026-125956 config: x86_64-allyesconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): arch/x86//mm/init_64.c: In function 'register_page_bootmem_memmap': >> arch/x86//mm/init_64.c:1341:15: error: 'nr_pages' redeclared as different >> kind of symbol unsigned int nr_pages; ^~~~~~~~ arch/x86//mm/init_64.c:1332:46: note: previous definition of 'nr_pages' was here struct page *start_page, unsigned long nr_pages) ^~~~~~~~ vim +/nr_pages +1341 arch/x86//mm/init_64.c c2b91e2ee Yinghai Lu 2008-04-12 1329 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1330 #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HAVE_BOOTMEM_INFO_NODE) 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1331 void register_page_bootmem_memmap(unsigned long section_nr, b5f7b7e8b Baoquan He 2017-10-24 1332 struct page *start_page, unsigned long nr_pages) 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1333 { 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1334 unsigned long addr = (unsigned long)start_page; b5f7b7e8b Baoquan He 2017-10-24 1335 unsigned long end = (unsigned long)(start_page + nr_pages); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1336 unsigned long next; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1337 pgd_t *pgd; f2a6a7050 Kirill A. Shutemov 2017-03-17 1338 p4d_t *p4d; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1339 pud_t *pud; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1340 pmd_t *pmd; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 @1341 unsigned int nr_pages; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1342 struct page *page; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1343 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1344 for (; addr < end; addr = next) { 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1345 pte_t *pte = NULL; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1346 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1347 pgd = pgd_offset_k(addr); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1348 if (pgd_none(*pgd)) { 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1349 next = (addr + PAGE_SIZE) & PAGE_MASK; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1350 continue; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1351 } 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1352 get_page_bootmem(section_nr, pgd_page(*pgd), MIX_SECTION_INFO); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1353 f2a6a7050 Kirill A. Shutemov 2017-03-17 1354 p4d = p4d_offset(pgd, addr); f2a6a7050 Kirill A. Shutemov 2017-03-17 1355 if (p4d_none(*p4d)) { f2a6a7050 Kirill A. Shutemov 2017-03-17 1356 next = (addr + PAGE_SIZE) & PAGE_MASK; f2a6a7050 Kirill A. Shutemov 2017-03-17 1357 continue; f2a6a7050 Kirill A. Shutemov 2017-03-17 1358 } f2a6a7050 Kirill A. Shutemov 2017-03-17 1359 get_page_bootmem(section_nr, p4d_page(*p4d), MIX_SECTION_INFO); f2a6a7050 Kirill A. Shutemov 2017-03-17 1360 f2a6a7050 Kirill A. Shutemov 2017-03-17 1361 pud = pud_offset(p4d, addr); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1362 if (pud_none(*pud)) { 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1363 next = (addr + PAGE_SIZE) & PAGE_MASK; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1364 continue; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1365 } 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1366 get_page_bootmem(section_nr, pud_page(*pud), MIX_SECTION_INFO); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1367 16bf92261 Borislav Petkov 2016-03-29 1368 if (!boot_cpu_has(X86_FEATURE_PSE)) { 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1369 next = (addr + PAGE_SIZE) & PAGE_MASK; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1370 pmd = pmd_offset(pud, addr); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1371 if (pmd_none(*pmd)) 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1372 continue; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1373 get_page_bootmem(section_nr, pmd_page(*pmd), 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1374 MIX_SECTION_INFO); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1375 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1376 pte = pte_offset_kernel(pmd, addr); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1377 if (pte_none(*pte)) 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1378 continue; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1379 get_page_bootmem(section_nr, pte_page(*pte), 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1380 SECTION_INFO); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1381 } else { 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1382 next = pmd_addr_end(addr, end); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1383 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1384 pmd = pmd_offset(pud, addr); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1385 if (pmd_none(*pmd)) 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1386 continue; 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1387 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1388 nr_pages = 1 << (get_order(PMD_SIZE)); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1389 page = pmd_page(*pmd); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1390 while (nr_pages--) 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1391 get_page_bootmem(section_nr, page++, 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1392 SECTION_INFO); 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1393 } 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1394 } 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1395 } 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1396 #endif 46723bfa5 Yasuaki Ishimatsu 2013-02-22 1397 :::::: The code at line 1341 was first introduced by commit :::::: 46723bfa540f0a1e494476a1734d03626a0bd1e0 memory-hotplug: implement register_page_bootmem_info_section of sparse-vmemmap :::::: TO: Yasuaki Ishimatsu <isimatu.yasu...@jp.fujitsu.com> :::::: CC: Linus Torvalds <torva...@linux-foundation.org> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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