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Date: Wed, 23 Jun 2021 08:33:54 +0800
From: kernel test robot <lkp@...el.com>
To: akpm@...ux-foundation.org, aneesh.kumar@...ux.ibm.com,
linux-alpha@...r.kernel.org, linux-arch@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-ia64@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
linux-mips@...r.kernel.org, linux-parisc@...r.kernel.org,
linux-riscv@...ts.infradead.org
Cc: kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com
Subject: Re: [to-be-updated]
mm-rename-pud_page_vaddr-to-pud_pgtable-and-make-it-return-pmd_t.patch
removed from -mm tree
Hi,
I love your patch! Perhaps something to improve:
[auto build test WARNING on powerpc/next]
[also build test WARNING on tip/x86/mm asm-generic/master linus/master sparc/master v5.13-rc7]
[cannot apply to sparc-next/master next-20210622]
[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/akpm-linux-foundation-org/mm-rename-pud_page_vaddr-to-pud_pgtable-and-make-it-return-pmd_t-patch-removed-from-mm-tree/20210617-075958
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: riscv-randconfig-r036-20210622 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project b3634d3e88b7f26534a5057bff182b7dced584fc)
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/490957abd94a7b67576c0029c771c6691dce1878
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review akpm-linux-foundation-org/mm-rename-pud_page_vaddr-to-pud_pgtable-and-make-it-return-pmd_t-patch-removed-from-mm-tree/20210617-075958
git checkout 490957abd94a7b67576c0029c771c6691dce1878
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
>> arch/riscv/mm/kasan_init.c:122:29: warning: comparison between pointer and integer ('pmd_t *' and 'unsigned long') [-Wpointer-integer-compare]
if (pgd_page_vaddr(*pgdp) == (unsigned long)lm_alias(kasan_early_shadow_pmd) &&
~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/riscv/mm/kasan_init.c:154:30: warning: comparison between pointer and integer ('pmd_t *' and 'unsigned long') [-Wpointer-integer-compare]
if (pgd_page_vaddr(*pgd_k) == (unsigned long)lm_alias(kasan_early_shadow_pmd)) {
~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 warnings generated.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for LOCKDEP
Depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT && (FRAME_POINTER || MIPS || PPC || S390 || MICROBLAZE || ARM || ARC || X86)
Selected by
- LOCK_STAT && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT
- DEBUG_LOCK_ALLOC && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT
vim +122 arch/riscv/mm/kasan_init.c
d127c19c7bea61 Alexandre Ghiti 2021-02-08 107
1987501b1130c6 Jisheng Zhang 2021-03-30 108 static void __init kasan_populate_pgd(unsigned long vaddr, unsigned long end)
d127c19c7bea61 Alexandre Ghiti 2021-02-08 109 {
d127c19c7bea61 Alexandre Ghiti 2021-02-08 110 phys_addr_t phys_addr;
d127c19c7bea61 Alexandre Ghiti 2021-02-08 111 pgd_t *pgdp = pgd_offset_k(vaddr);
d127c19c7bea61 Alexandre Ghiti 2021-02-08 112 unsigned long next;
d127c19c7bea61 Alexandre Ghiti 2021-02-08 113
d127c19c7bea61 Alexandre Ghiti 2021-02-08 114 do {
d127c19c7bea61 Alexandre Ghiti 2021-02-08 115 next = pgd_addr_end(vaddr, end);
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 116
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 117 /*
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 118 * pgdp can't be none since kasan_early_init initialized all KASAN
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 119 * shadow region with kasan_early_shadow_pmd: if this is stillthe case,
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 120 * that means we can try to allocate a hugepage as a replacement.
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 121 */
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 @122 if (pgd_page_vaddr(*pgdp) == (unsigned long)lm_alias(kasan_early_shadow_pmd) &&
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 123 IS_ALIGNED(vaddr, PGDIR_SIZE) && (next - vaddr) >= PGDIR_SIZE) {
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 124 phys_addr = memblock_phys_alloc(PGDIR_SIZE, PGDIR_SIZE);
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 125 if (phys_addr) {
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 126 set_pgd(pgdp, pfn_pgd(PFN_DOWN(phys_addr), PAGE_KERNEL));
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 127 continue;
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 128 }
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 129 }
d7fbcf40df86bb Alexandre Ghiti 2021-02-08 130
d127c19c7bea61 Alexandre Ghiti 2021-02-08 131 kasan_populate_pmd(pgdp, vaddr, next);
d127c19c7bea61 Alexandre Ghiti 2021-02-08 132 } while (pgdp++, vaddr = next, vaddr != end);
d127c19c7bea61 Alexandre Ghiti 2021-02-08 133 }
d127c19c7bea61 Alexandre Ghiti 2021-02-08 134
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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