CC: [email protected] In-Reply-To: <[email protected]> References: <[email protected]> TO: Nicholas Piggin <[email protected]> TO: [email protected] TO: Andrew Morton <[email protected]> CC: Linux Memory Management List <[email protected]> CC: Nicholas Piggin <[email protected]> CC: [email protected] CC: [email protected] CC: [email protected] CC: Jonathan Cameron <[email protected]> CC: Christoph Hellwig <[email protected]> CC: Christophe Leroy <[email protected]>
Hi Nicholas, I love your patch! Perhaps something to improve: [auto build test WARNING on powerpc/next] [also build test WARNING on arm64/for-next/core v5.11-rc6] [cannot apply to hnaz-linux-mm/master next-20210125] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Nicholas-Piggin/huge-vmalloc-mappings/20210202-190833 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next :::::: branch date: 17 hours ago :::::: commit date: 17 hours ago config: x86_64-randconfig-m001-20210202 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> smatch warnings: mm/vmalloc.c:520 vmap_small_pages_range_noflush() warn: bitwise AND condition is false here mm/vmalloc.c:2933 __vmalloc_node_range() error: uninitialized symbol 'area'. vim +520 mm/vmalloc.c c2febafc67734a Kirill A. Shutemov 2017-03-09 498 2362efe9169e3d Nicholas Piggin 2021-02-02 499 static int vmap_small_pages_range_noflush(unsigned long addr, unsigned long end, db64fe02258f15 Nick Piggin 2008-10-18 500 pgprot_t prot, struct page **pages) ^1da177e4c3f41 Linus Torvalds 2005-04-16 501 { 2ba3e6947aed9b Joerg Roedel 2020-06-01 502 unsigned long start = addr; b521c43f58e523 Christoph Hellwig 2020-06-01 503 pgd_t *pgd; 2362efe9169e3d Nicholas Piggin 2021-02-02 504 unsigned long next; db64fe02258f15 Nick Piggin 2008-10-18 505 int err = 0; db64fe02258f15 Nick Piggin 2008-10-18 506 int nr = 0; 2ba3e6947aed9b Joerg Roedel 2020-06-01 507 pgtbl_mod_mask mask = 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 508 ^1da177e4c3f41 Linus Torvalds 2005-04-16 509 BUG_ON(addr >= end); ^1da177e4c3f41 Linus Torvalds 2005-04-16 510 pgd = pgd_offset_k(addr); ^1da177e4c3f41 Linus Torvalds 2005-04-16 511 do { ^1da177e4c3f41 Linus Torvalds 2005-04-16 512 next = pgd_addr_end(addr, end); 2ba3e6947aed9b Joerg Roedel 2020-06-01 513 if (pgd_bad(*pgd)) 2ba3e6947aed9b Joerg Roedel 2020-06-01 514 mask |= PGTBL_PGD_MODIFIED; 2ef69bb78a3fb7 Nicholas Piggin 2021-02-02 515 err = vmap_pages_p4d_range(pgd, addr, next, prot, pages, &nr, &mask); ^1da177e4c3f41 Linus Torvalds 2005-04-16 516 if (err) bf88c8c83e4425 Figo.zhang 2009-09-21 517 return err; ^1da177e4c3f41 Linus Torvalds 2005-04-16 518 } while (pgd++, addr = next, addr != end); db64fe02258f15 Nick Piggin 2008-10-18 519 2ba3e6947aed9b Joerg Roedel 2020-06-01 @520 if (mask & ARCH_PAGE_TABLE_SYNC_MASK) 2ba3e6947aed9b Joerg Roedel 2020-06-01 521 arch_sync_kernel_mappings(start, end); 2ba3e6947aed9b Joerg Roedel 2020-06-01 522 60bb44652a0dcc Christoph Hellwig 2020-06-01 523 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 524 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 525 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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