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Message-ID: <202410011312.c884e7lp-lkp@intel.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.xattr head: 242dce7f3a28f84e733f16d29368cedf91feccf3 commit: 242dce7f3a28f84e733f16d29368cedf91feccf3 [9/9] fs/xattr: add *at family syscalls config: s390-allnoconfig (https://download.01.org/0day-ci/archive/20241001/202410011312.c884e7lp-lkp@intel.com/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 7773243d9916f98ba0ffce0c3a960e4aa9f03e81) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241001/202410011312.c884e7lp-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/202410011312.c884e7lp-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from fs/xattr.c:15: In file included from include/linux/xattr.h:18: In file included from include/linux/mm.h:2213: include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> fs/xattr.c:971:28: error: use of undeclared identifier 'pathname'; did you mean 'putname'? 971 | error = user_path_at(dfd, pathname, lookup_flags, &path); | ^~~~~~~~ | putname include/linux/fs.h:2769:13: note: 'putname' declared here 2769 | extern void putname(struct filename *name); | ^ fs/xattr.c:990:10: warning: unused variable 'error' [-Wunused-variable] 990 | ssize_t error; | ^~~~~ >> fs/xattr.c:1092:37: error: incompatible pointer types passing 'struct xattr_name *' to parameter of type 'const char *' [-Werror,-Wincompatible-pointer-types] 1092 | fd_file(f)->f_path.dentry, &kname); | ^~~~~~ fs/xattr.c:1037:68: note: passing argument to parameter 'name' here 1037 | removexattr(struct mnt_idmap *idmap, struct dentry *d, const char *name) | ^ >> fs/xattr.c:1097:2: error: use of undeclared identifier 'lookup_flags' 1097 | lookup_flags = (at_flags & AT_SYMLINK_NOFOLLOW) ? 0 : LOOKUP_FOLLOW; | ^ fs/xattr.c:1098:45: error: use of undeclared identifier 'lookup_flags' 1098 | return filename_removexattr(dfd, filename, lookup_flags, &kname); | ^ 2 warnings and 4 errors generated. vim +971 fs/xattr.c 962 963 static 964 ssize_t filename_listxattrat(int dfd, struct filename *filename, 965 unsigned int lookup_flags, 966 char __user *list, size_t size) 967 { 968 struct path path; 969 ssize_t error; 970 retry: > 971 error = user_path_at(dfd, pathname, lookup_flags, &path); 972 if (error) 973 goto out; 974 error = listxattr(path.dentry, list, size); 975 path_put(&path); 976 if (retry_estale(error, lookup_flags)) { 977 lookup_flags |= LOOKUP_REVAL; 978 goto retry; 979 } 980 out: 981 putname(filename); 982 return error; 983 } 984 985 static ssize_t path_listxattrat(int dfd, const char __user *pathname, 986 unsigned int at_flags, char __user *list, 987 size_t size) 988 { 989 struct filename *filename; 990 ssize_t error; 991 int lookup_flags; 992 993 if ((at_flags & ~(AT_SYMLINK_NOFOLLOW | AT_EMPTY_PATH)) != 0) 994 return -EINVAL; 995 996 filename = getname_xattr(pathname, at_flags); 997 if (!filename) { 998 CLASS(fd, f)(dfd); 999 if (fd_empty(f)) 1000 return -EBADF; 1001 audit_file(fd_file(f)); 1002 return listxattr(file_dentry(fd_file(f)), list, size); 1003 } 1004 1005 lookup_flags = (at_flags & AT_SYMLINK_NOFOLLOW) ? 0 : LOOKUP_FOLLOW; 1006 return filename_listxattrat(dfd, filename, lookup_flags, list, size); 1007 } 1008 1009 SYSCALL_DEFINE5(listxattrat, int, dfd, const char __user *, pathname, 1010 unsigned int, at_flags, 1011 char __user *, list, size_t, size) 1012 { 1013 return path_listxattrat(dfd, pathname, at_flags, list, size); 1014 } 1015 1016 SYSCALL_DEFINE3(listxattr, const char __user *, pathname, char __user *, list, 1017 size_t, size) 1018 { 1019 return path_listxattrat(AT_FDCWD, pathname, 0, list, size); 1020 } 1021 1022 SYSCALL_DEFINE3(llistxattr, const char __user *, pathname, char __user *, list, 1023 size_t, size) 1024 { 1025 return path_listxattrat(AT_FDCWD, pathname, AT_SYMLINK_NOFOLLOW, list, size); 1026 } 1027 1028 SYSCALL_DEFINE3(flistxattr, int, fd, char __user *, list, size_t, size) 1029 { 1030 return path_listxattrat(fd, NULL, AT_EMPTY_PATH, list, size); 1031 } 1032 1033 /* 1034 * Extended attribute REMOVE operations 1035 */ 1036 static long 1037 removexattr(struct mnt_idmap *idmap, struct dentry *d, const char *name) 1038 { 1039 if (is_posix_acl_xattr(name)) 1040 return vfs_remove_acl(idmap, d, name); 1041 return vfs_removexattr(idmap, d, name); 1042 } 1043 1044 static int filename_removexattr(int dfd, struct filename *filename, 1045 unsigned int lookup_flags, struct xattr_name *kname) 1046 { 1047 struct path path; 1048 int error; 1049 1050 retry: 1051 error = filename_lookup(dfd, filename, lookup_flags, &path, NULL); 1052 if (error) 1053 goto out; 1054 error = mnt_want_write(path.mnt); 1055 if (!error) { 1056 error = removexattr(mnt_idmap(path.mnt), path.dentry, kname->name); 1057 mnt_drop_write(path.mnt); 1058 } 1059 path_put(&path); 1060 if (retry_estale(error, lookup_flags)) { 1061 lookup_flags |= LOOKUP_REVAL; 1062 goto retry; 1063 } 1064 out: 1065 putname(filename); 1066 return error; 1067 } 1068 1069 static int path_removexattrat(int dfd, const char __user *pathname, 1070 unsigned int at_flags, const char __user *name) 1071 { 1072 struct xattr_name kname; 1073 struct filename *filename; 1074 int error; 1075 1076 if ((at_flags & ~(AT_SYMLINK_NOFOLLOW | AT_EMPTY_PATH)) != 0) 1077 return -EINVAL; 1078 1079 error = import_xattr_name(&kname, name); 1080 if (error) 1081 return error; 1082 1083 filename = getname_xattr(pathname, at_flags); 1084 if (!filename) { 1085 CLASS(fd, f)(dfd); 1086 if (fd_empty(f)) 1087 return -EBADF; 1088 audit_file(fd_file(f)); 1089 error = mnt_want_write_file(fd_file(f)); 1090 if (!error) { 1091 error = removexattr(file_mnt_idmap(fd_file(f)), > 1092 fd_file(f)->f_path.dentry, &kname); 1093 mnt_drop_write_file(fd_file(f)); 1094 } 1095 return error; 1096 } > 1097 lookup_flags = (at_flags & AT_SYMLINK_NOFOLLOW) ? 0 : LOOKUP_FOLLOW; 1098 return filename_removexattr(dfd, filename, lookup_flags, &kname); 1099 } 1100 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki