* kernel test robot <lkp@xxxxxxxxx> [220224 01:07]: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: d4a0ae62a277377de396850ed4b709b6bd9b7326 > commit: b3d7ba3cdf23cae36715a695c7569f617e57d39d [6850/7915] mm: Remove the vma linked list > config: parisc-randconfig-r015-20220223 (https://download.01.org/0day-ci/archive/20220224/202202241403.qvb02FgB-lkp@xxxxxxxxx/config) > compiler: hppa-linux-gcc (GCC) 11.2.0 > 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/next/linux-next.git/commit/?id=b3d7ba3cdf23cae36715a695c7569f617e57d39d > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout b3d7ba3cdf23cae36715a695c7569f617e57d39d > # save the config file to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=parisc SHELL=/bin/bash > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > mm/mmap.c:515:6: warning: no previous prototype for 'vma_store' [-Wmissing-prototypes] > 515 | void vma_store(struct mm_struct *mm, struct vm_area_struct *vma) > | ^~~~~~~~~ > mm/mmap.c: In function 'expand_upwards': > >> mm/mmap.c:1991:25: error: passing argument 1 of 'vma_find' from incompatible pointer type [-Werror=incompatible-pointer-types] > 1991 | next = vma_find(mm, vma->vm_end); > | ^~ > | | > | struct mm_struct * Thank you, this has already been fixed. > In file included from arch/parisc/include/asm/cacheflush.h:5, > from include/linux/cacheflush.h:5, > from include/linux/highmem.h:8, > from include/linux/bvec.h:10, > from include/linux/blk_types.h:10, > from include/linux/writeback.h:13, > from include/linux/backing-dev.h:16, > from mm/mmap.c:14: > include/linux/mm.h:659:54: note: expected 'struct vma_iterator *' but argument is of type 'struct mm_struct *' > 659 | struct vm_area_struct *vma_find(struct vma_iterator *vmi, unsigned long max) > | ~~~~~~~~~~~~~~~~~~~~~^~~ > cc1: some warnings being treated as errors > > > vim +/vma_find +1991 mm/mmap.c > > 1962 > 1963 #if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64) > 1964 /* > 1965 * PA-RISC uses this for its stack; IA64 for its Register Backing Store. > 1966 * vma is the last one with address > vma->vm_end. Have to extend vma. > 1967 */ > 1968 int expand_upwards(struct vm_area_struct *vma, unsigned long address) > 1969 { > 1970 struct mm_struct *mm = vma->vm_mm; > 1971 struct vm_area_struct *next; > 1972 unsigned long gap_addr; > 1973 int error = 0; > 1974 > 1975 if (!(vma->vm_flags & VM_GROWSUP)) > 1976 return -EFAULT; > 1977 > 1978 /* Guard against exceeding limits of the address space. */ > 1979 address &= PAGE_MASK; > 1980 if (address >= (TASK_SIZE & PAGE_MASK)) > 1981 return -ENOMEM; > 1982 address += PAGE_SIZE; > 1983 > 1984 /* Enforce stack_guard_gap */ > 1985 gap_addr = address + stack_guard_gap; > 1986 > 1987 /* Guard against overflow */ > 1988 if (gap_addr < address || gap_addr > TASK_SIZE) > 1989 gap_addr = TASK_SIZE; > 1990 > > 1991 next = vma_find(mm, vma->vm_end); > 1992 if (next && next->vm_start < gap_addr && vma_is_accessible(next)) { > 1993 if (!(next->vm_flags & VM_GROWSUP)) > 1994 return -ENOMEM; > 1995 /* Check that both stack segments have the same anon_vma? */ > 1996 } > 1997 > 1998 /* We must make sure the anon_vma is allocated. */ > 1999 if (unlikely(anon_vma_prepare(vma))) > 2000 return -ENOMEM; > 2001 > 2002 /* > 2003 * vma->vm_start/vm_end cannot change under us because the caller > 2004 * is required to hold the mmap_lock in read mode. We need the > 2005 * anon_vma lock to serialize against concurrent expand_stacks. > 2006 */ > 2007 anon_vma_lock_write(vma->anon_vma); > 2008 > 2009 /* Somebody else might have raced and expanded it already */ > 2010 if (address > vma->vm_end) { > 2011 unsigned long size, grow; > 2012 > 2013 size = address - vma->vm_start; > 2014 grow = (address - vma->vm_end) >> PAGE_SHIFT; > 2015 > 2016 error = -ENOMEM; > 2017 if (vma->vm_pgoff + (size >> PAGE_SHIFT) >= vma->vm_pgoff) { > 2018 error = acct_stack_growth(vma, size, grow); > 2019 if (!error) { > 2020 /* > 2021 * We only hold a shared mmap_lock lock here, so > 2022 * we need to protect against concurrent vma > 2023 * expansions. anon_vma_lock_write() doesn't > 2024 * help here, as we don't guarantee that all > 2025 * growable vmas in a mm share the same root > 2026 * anon vma. So, we reuse mm->page_table_lock > 2027 * to guard against concurrent vma expansions. > 2028 */ > 2029 spin_lock(&mm->page_table_lock); > 2030 if (vma->vm_flags & VM_LOCKED) > 2031 mm->locked_vm += grow; > 2032 vm_stat_account(mm, vma->vm_flags, grow); > 2033 anon_vma_interval_tree_pre_update_vma(vma); > 2034 vma->vm_end = address; > 2035 vma_store(mm, vma); > 2036 anon_vma_interval_tree_post_update_vma(vma); > 2037 spin_unlock(&mm->page_table_lock); > 2038 > 2039 perf_event_mmap(vma); > 2040 } > 2041 } > 2042 } > 2043 anon_vma_unlock_write(vma->anon_vma); > 2044 khugepaged_enter_vma_merge(vma, vma->vm_flags); > 2045 return error; > 2046 } > 2047 #endif /* CONFIG_STACK_GROWSUP || CONFIG_IA64 */ > 2048 > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
