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Message-ID: <202403231529.HRev1zcD-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 4C4C640005 X-Stat-Signature: myjo3rkjzmg1rjojw6jqj6cn9n76p1m3 X-HE-Tag: 1711177975-54999 X-HE-Meta: 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 gumtpTjy utMXFvNAN6zogwXOUDky3y6n2oGgUN57deSLqgwhioM198ldPnguIAvYJ6LPYBU4nm/2RVYeZ3IS6jMAcqtWIubXYyIS7UvXzy7QnlWSHCmN5R/sa5BTZQcUEPSCIS7kVAchxrHcmG+aC6Z6TEz6uv7Hp1CEpZv6ap6jOrAY3wnbgv7bpMjYdFxTxrEflMANJ5bb9XtUKnVLSSQOfTpmns6cj0jl86q3iXfD6i5ppu1/tnq9iTIHICoAldwR9ePXEes6RfGD5MFwnQHFdPrPM+Ecy/mf+/6Ak+6WioY6/6c798LCGeSzYWcBWIdu0g+AwNobf2lu4HutiAwBwyMLETUnWaSkvx0sw/bSCjmY1XMYzTgARbWY/WJZo78tpu/jaNMaJpj65FMQmzvs= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable head: af520f81c51001f7ccdf0579fc73df282b26292d commit: 529f3b89b7333564792458ca7be06f5bff258d23 [115/141] mm/gup: handle huge pud for follow_pud_mask() config: sh-defconfig (https://download.01.org/0day-ci/archive/20240323/202403231529.HRev1zcD-lkp@intel.com/config) compiler: sh4-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240323/202403231529.HRev1zcD-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202403231529.HRev1zcD-lkp@intel.com/ All errors (new ones prefixed by >>): mm/gup.c: In function 'follow_huge_pud': >> mm/gup.c:536:29: error: implicit declaration of function 'pud_pfn'; did you mean 'pmd_pfn'? [-Werror=implicit-function-declaration] 536 | unsigned long pfn = pud_pfn(pud); | ^~~~~~~ | pmd_pfn cc1: some warnings being treated as errors vim +536 mm/gup.c 527 528 #ifdef CONFIG_PGTABLE_HAS_HUGE_LEAVES 529 static struct page *follow_huge_pud(struct vm_area_struct *vma, 530 unsigned long addr, pud_t *pudp, 531 int flags, struct follow_page_context *ctx) 532 { 533 struct mm_struct *mm = vma->vm_mm; 534 struct page *page; 535 pud_t pud = *pudp; > 536 unsigned long pfn = pud_pfn(pud); 537 int ret; 538 539 assert_spin_locked(pud_lockptr(mm, pudp)); 540 541 if ((flags & FOLL_WRITE) && !pud_write(pud)) 542 return NULL; 543 544 if (!pud_present(pud)) 545 return NULL; 546 547 pfn += (addr & ~PUD_MASK) >> PAGE_SHIFT; 548 549 if (IS_ENABLED(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD) && 550 pud_devmap(pud)) { 551 /* 552 * device mapped pages can only be returned if the caller 553 * will manage the page reference count. 554 * 555 * At least one of FOLL_GET | FOLL_PIN must be set, so 556 * assert that here: 557 */ 558 if (!(flags & (FOLL_GET | FOLL_PIN))) 559 return ERR_PTR(-EEXIST); 560 561 if (flags & FOLL_TOUCH) 562 touch_pud(vma, addr, pudp, flags & FOLL_WRITE); 563 564 ctx->pgmap = get_dev_pagemap(pfn, ctx->pgmap); 565 if (!ctx->pgmap) 566 return ERR_PTR(-EFAULT); 567 } 568 569 page = pfn_to_page(pfn); 570 571 if (!pud_devmap(pud) && !pud_write(pud) && 572 gup_must_unshare(vma, flags, page)) 573 return ERR_PTR(-EMLINK); 574 575 ret = try_grab_page(page, flags); 576 if (ret) 577 page = ERR_PTR(ret); 578 else 579 ctx->page_mask = HPAGE_PUD_NR - 1; 580 581 return page; 582 } 583 #else /* CONFIG_PGTABLE_HAS_HUGE_LEAVES */ 584 static struct page *follow_huge_pud(struct vm_area_struct *vma, 585 unsigned long addr, pud_t *pudp, 586 int flags, struct follow_page_context *ctx) 587 { 588 return NULL; 589 } 590 #endif /* CONFIG_PGTABLE_HAS_HUGE_LEAVES */ 591 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki