tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: d47175169c28eedd2cc2ab8c01f38764cb0269cc commit: 1842a5a9ba44c8bd174fa124227a31d4b8eafea6 [13875/13946] mm: untag user pointers passed to memory syscalls config: sparc64-allmodconfig (attached as .config) compiler: sparc64-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 1842a5a9ba44c8bd174fa124227a31d4b8eafea6 # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=sparc64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): mm/mempolicy.c: In function 'kernel_mbind': >> mm/mempolicy.c:1408:30: error: expected ')' before ';' token start = untagged_addr(start); ^ >> mm/mempolicy.c:1420:1: error: expected ';' before '}' token } ^ mm/mempolicy.c:1406:17: warning: unused variable 'mode_flags' [-Wunused-variable] unsigned short mode_flags; ^~~~~~~~~~ mm/mempolicy.c:1405:6: warning: unused variable 'err' [-Wunused-variable] int err; ^~~ mm/mempolicy.c:1404:13: warning: unused variable 'nodes' [-Wunused-variable] nodemask_t nodes; ^~~~~ >> mm/mempolicy.c:1420:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ mm/mempolicy.c: In function 'kernel_get_mempolicy': mm/mempolicy.c:1562:28: error: expected ')' before ';' token addr = untagged_addr(addr); ^ mm/mempolicy.c:1579:1: error: expected ';' before '}' token } ^ mm/mempolicy.c:1560:13: warning: unused variable 'nodes' [-Wunused-variable] nodemask_t nodes; ^~~~~ mm/mempolicy.c:1558:6: warning: unused variable 'err' [-Wunused-variable] int err; ^~~ mm/mempolicy.c:1579:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ At top level: mm/mempolicy.c:1384:12: warning: 'copy_nodes_to_user' defined but not used [-Wunused-function] static int copy_nodes_to_user(unsigned long __user *mask, unsigned long maxnode, ^~~~~~~~~~~~~~~~~~ mm/mempolicy.c:1215:13: warning: 'do_mbind' defined but not used [-Wunused-function] static long do_mbind(unsigned long start, unsigned long len, ^~~~~~~~ mm/mempolicy.c:869:13: warning: 'do_get_mempolicy' defined but not used [-Wunused-function] static long do_get_mempolicy(int *policy, nodemask_t *nmask, ^~~~~~~~~~~~~~~~ -- mm/migrate.c: In function 'do_pages_move': >> mm/migrate.c:1615:41: error: expected ')' before ';' token addr = (unsigned long)untagged_addr(p); ^ >> mm/migrate.c:1663:2: error: expected ';' before '}' token } ^ mm/migrate.c:1674:1: warning: label 'out' defined but not used [-Wunused-label] out: ^~~ At top level: mm/migrate.c:1523:12: warning: 'add_page_for_migration' defined but not used [-Wunused-function] static int add_page_for_migration(struct mm_struct *mm, unsigned long addr, ^~~~~~~~~~~~~~~~~~~~~~ -- mm/mincore.c: In function '__do_sys_mincore': >> mm/mincore.c:259:30: error: expected ')' before ';' token start = untagged_addr(start); ^ >> mm/mincore.c:303:1: error: expected ';' before '}' token } ^ mm/mincore.c:257:17: warning: unused variable 'tmp' [-Wunused-variable] unsigned char *tmp; ^~~ mm/mincore.c:256:16: warning: unused variable 'pages' [-Wunused-variable] unsigned long pages; ^~~~~ mm/mincore.c:255:7: warning: unused variable 'retval' [-Wunused-variable] long retval; ^~~~~~ >> mm/mincore.c:303:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ At top level: mm/mincore.c:207:13: warning: 'do_mincore' defined but not used [-Wunused-function] static long do_mincore(unsigned long addr, unsigned long pages, unsigned char *vec) ^~~~~~~~~~ -- mm/mlock.c: In function 'do_mlock': >> mm/mlock.c:677:30: error: expected ')' before ';' token start = untagged_addr(start); ^ >> mm/mlock.c:716:1: error: expected ';' before '}' token } ^ mm/mlock.c:675:6: warning: unused variable 'error' [-Wunused-variable] int error = -ENOMEM; ^~~~~ mm/mlock.c:674:16: warning: unused variable 'lock_limit' [-Wunused-variable] unsigned long lock_limit; ^~~~~~~~~~ mm/mlock.c:673:16: warning: unused variable 'locked' [-Wunused-variable] unsigned long locked; ^~~~~~ >> mm/mlock.c:716:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ mm/mlock.c: In function '__do_sys_munlock': mm/mlock.c:740:30: error: expected ')' before ';' token start = untagged_addr(start); ^ mm/mlock.c:751:1: error: expected ';' before '}' token } ^ mm/mlock.c:738:6: warning: unused variable 'ret' [-Wunused-variable] int ret; ^~~ mm/mlock.c:751:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ At top level: mm/mlock.c:639:22: warning: 'count_mm_mlocked_page_nr' defined but not used [-Wunused-function] static unsigned long count_mm_mlocked_page_nr(struct mm_struct *mm, ^~~~~~~~~~~~~~~~~~~~~~~~ mm/mlock.c:583:12: warning: 'apply_vma_lock_flags' defined but not used [-Wunused-function] static int apply_vma_lock_flags(unsigned long start, size_t len, ^~~~~~~~~~~~~~~~~~~~ mm/mlock.c:225:12: warning: '__mlock_posix_error_return' defined but not used [-Wunused-function] static int __mlock_posix_error_return(long retval) ^~~~~~~~~~~~~~~~~~~~~~~~~~ -- mm/mprotect.c: In function 'do_mprotect_pkey': >> mm/mprotect.c:462:30: error: expected ')' before ';' token start = untagged_addr(start); ^ >> mm/mprotect.c:573:1: error: expected ';' before '}' token } ^ mm/mprotect.c:459:13: warning: unused variable 'rier' [-Wunused-variable] const bool rier = (current->personality & READ_IMPLIES_EXEC) && ^~~~ mm/mprotect.c:458:12: warning: unused variable 'grows' [-Wunused-variable] const int grows = prot & (PROT_GROWSDOWN|PROT_GROWSUP); ^~~~~ mm/mprotect.c:457:6: warning: unused variable 'error' [-Wunused-variable] int error = -EINVAL; ^~~~~ mm/mprotect.c:456:31: warning: unused variable 'prev' [-Wunused-variable] struct vm_area_struct *vma, *prev; ^~~~ mm/mprotect.c:456:25: warning: unused variable 'vma' [-Wunused-variable] struct vm_area_struct *vma, *prev; ^~~ mm/mprotect.c:455:34: warning: unused variable 'reqprot' [-Wunused-variable] unsigned long nstart, end, tmp, reqprot; ^~~~~~~ mm/mprotect.c:455:29: warning: unused variable 'tmp' [-Wunused-variable] unsigned long nstart, end, tmp, reqprot; ^~~ mm/mprotect.c:455:24: warning: unused variable 'end' [-Wunused-variable] unsigned long nstart, end, tmp, reqprot; ^~~ mm/mprotect.c:455:16: warning: unused variable 'nstart' [-Wunused-variable] unsigned long nstart, end, tmp, reqprot; ^~~~~~ >> mm/mprotect.c:573:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ -- mm/mremap.c: In function '__do_sys_mremap': >> mm/mremap.c:614:28: error: expected ')' before ';' token addr = untagged_addr(addr); ^ mm/mremap.c:736:1: error: expected ';' before '}' token } ^ mm/mremap.c:605:28: warning: unused variable 'uf' [-Wunused-variable] struct vm_userfaultfd_ctx uf = NULL_VM_UFFD_CTX; ^~ mm/mremap.c:604:7: warning: unused variable 'downgraded' [-Wunused-variable] bool downgraded = false; ^~~~~~~~~~ mm/mremap.c:603:7: warning: unused variable 'locked' [-Wunused-variable] bool locked = false; ^~~~~~ mm/mremap.c:602:16: warning: unused variable 'charged' [-Wunused-variable] unsigned long charged = 0; ^~~~~~~ mm/mremap.c:601:16: warning: unused variable 'ret' [-Wunused-variable] unsigned long ret = -EINVAL; ^~~ mm/mremap.c:600:25: warning: unused variable 'vma' [-Wunused-variable] struct vm_area_struct *vma; ^~~ mm/mremap.c:599:20: warning: unused variable 'mm' [-Wunused-variable] struct mm_struct *mm = current->mm; ^~ >> mm/mremap.c:736:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ At top level: mm/mremap.c:575:12: warning: 'vma_expandable' defined but not used [-Wunused-function] static int vma_expandable(struct vm_area_struct *vma, unsigned long delta) ^~~~~~~~~~~~~~ mm/mremap.c:498:22: warning: 'mremap_to' defined but not used [-Wunused-function] static unsigned long mremap_to(unsigned long addr, unsigned long old_len, ^~~~~~~~~ -- mm/msync.c: In function '__do_sys_msync': >> mm/msync.c:40:30: error: expected ')' before ';' token start = untagged_addr(start); ^ >> mm/msync.c:110:1: error: expected ';' before '}' token } ^ mm/msync.c:38:6: warning: unused variable 'error' [-Wunused-variable] int error = -EINVAL; ^~~~~ mm/msync.c:37:6: warning: unused variable 'unmapped_error' [-Wunused-variable] int unmapped_error = 0; ^~~~~~~~~~~~~~ mm/msync.c:36:25: warning: unused variable 'vma' [-Wunused-variable] struct vm_area_struct *vma; ^~~ mm/msync.c:35:20: warning: unused variable 'mm' [-Wunused-variable] struct mm_struct *mm = current->mm; ^~ mm/msync.c:34:16: warning: unused variable 'end' [-Wunused-variable] unsigned long end; ^~~ >> mm/msync.c:110:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ -- mm/madvise.c: In function '__do_sys_madvise': >> mm/madvise.c:787:30: error: expected ')' before ';' token start = untagged_addr(start); ^ >> mm/madvise.c:873:1: error: expected ';' before '}' token } ^ mm/madvise.c:785:18: warning: unused variable 'plug' [-Wunused-variable] struct blk_plug plug; ^~~~ mm/madvise.c:784:9: warning: unused variable 'len' [-Wunused-variable] size_t len; ^~~ mm/madvise.c:783:6: warning: unused variable 'write' [-Wunused-variable] int write; ^~~~~ mm/madvise.c:782:6: warning: unused variable 'error' [-Wunused-variable] int error = -EINVAL; ^~~~~ mm/madvise.c:781:6: warning: unused variable 'unmapped_error' [-Wunused-variable] int unmapped_error = 0; ^~~~~~~~~~~~~~ mm/madvise.c:780:31: warning: unused variable 'prev' [-Wunused-variable] struct vm_area_struct *vma, *prev; ^~~~ mm/madvise.c:780:25: warning: unused variable 'vma' [-Wunused-variable] struct vm_area_struct *vma, *prev; ^~~ mm/madvise.c:779:21: warning: unused variable 'tmp' [-Wunused-variable] unsigned long end, tmp; ^~~ mm/madvise.c:779:16: warning: unused variable 'end' [-Wunused-variable] unsigned long end, tmp; ^~~ >> mm/madvise.c:873:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ At top level: mm/madvise.c:681:1: warning: 'madvise_behavior_valid' defined but not used [-Wunused-function] madvise_behavior_valid(int behavior) ^~~~~~~~~~~~~~~~~~~~~~ mm/madvise.c:664:1: warning: 'madvise_vma' defined but not used [-Wunused-function] madvise_vma(struct vm_area_struct *vma, struct vm_area_struct **prev, ^~~~~~~~~~~ mm/madvise.c:39:12: warning: 'madvise_need_mmap_write' defined but not used [-Wunused-function] static int madvise_need_mmap_write(int behavior) ^~~~~~~~~~~~~~~~~~~~~~~ vim +1408 mm/mempolicy.c 1399 1400 static long kernel_mbind(unsigned long start, unsigned long len, 1401 unsigned long mode, const unsigned long __user *nmask, 1402 unsigned long maxnode, unsigned int flags) 1403 { 1404 nodemask_t nodes; 1405 int err; > 1406 unsigned short mode_flags; 1407 > 1408 start = untagged_addr(start); 1409 mode_flags = mode & MPOL_MODE_FLAGS; 1410 mode &= ~MPOL_MODE_FLAGS; 1411 if (mode >= MPOL_MAX) 1412 return -EINVAL; 1413 if ((mode_flags & MPOL_F_STATIC_NODES) && 1414 (mode_flags & MPOL_F_RELATIVE_NODES)) 1415 return -EINVAL; 1416 err = get_nodes(&nodes, nmask, maxnode); 1417 if (err) 1418 return err; 1419 return do_mbind(start, len, mode, mode_flags, &nodes, flags); > 1420 } 1421 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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