tree: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git netfs-folio-regions head: bee78a1e3c9ae86d025b0b8f44c2553228fd9d2c commit: 7261c29990677f14498f0aa1749db277a581b9c3 [13/33] netfs: Add a netfs inode context config: i386-randconfig-a012-20210824 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d26000e4cc2bc65e207a84fa26cb6e374d60aa12) 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/dhowells/linux-fs.git/com... git remote add dhowells-fs https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git git fetch --no-tags dhowells-fs netfs-folio-regions git checkout 7261c29990677f14498f0aa1749db277a581b9c3 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=i386 SHELL=/bin/bash fs/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): clang-14: warning: optimization flag '-falign-jumps=0' is not supported [-Wignored-optimization-argument] In file included from fs/ceph/addr.c:4: In file included from include/linux/backing-dev.h:13: In file included from include/linux/fs.h:6: In file included from include/linux/wait_bit.h:8: In file included from include/linux/wait.h:9: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from arch/x86/include/asm/preempt.h:7: In file included from include/linux/thread_info.h:60: arch/x86/include/asm/thread_info.h:172:13: warning: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address] oldframe = __builtin_frame_address(1); ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/include/asm/thread_info.h:174:11: warning: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address] frame = __builtin_frame_address(2); ^~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from fs/ceph/addr.c:17: In file included from fs/ceph/super.h:21: In file included from include/linux/ceph/libceph.h:24: In file included from include/linux/ceph/osd_client.h:14: In file included from include/linux/ceph/osdmap.h:7: include/linux/ceph/decode.h:236:33: warning: taking address of packed member 'in_addr' of class or structure 'ceph_entity_addr' may result in an unaligned pointer value [-Waddress-of-packed-member] __be16 ss_family = *(__be16 *)&a->in_addr.ss_family; ^~~~~~~~~~~~~~~~~~~~ .is_cache_enabled = ceph_is_cache_enabled, ^ return netfs_readpage(file, folio, &ceph_netfs_read_ops, NULL); ~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/netfs.h:258:12: note: 'netfs_readpage' declared here extern int netfs_readpage(struct file *, struct page *); ^ fs/ceph/addr.c:378:25: error: too many arguments to function call, expected 1, have 3 netfs_readahead(ractl, &ceph_netfs_read_ops, (void *)(uintptr_t)got); ~~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/netfs.h:257:13: note: 'netfs_readahead' declared here extern void netfs_readahead(struct readahead_control *); ^ fs/ceph/addr.c:1261:10: error: too many arguments to function call, expected 7, have 9 &ceph_netfs_read_ops, NULL); ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/netfs.h:259:12: note: 'netfs_write_begin' declared here extern int netfs_write_begin(struct file *, struct address_space *, ^ 3 warnings and 4 errors generated. vim +310 fs/ceph/addr.c 49870056005ca9 Jeff Layton 2020-07-09 307 7261c29990677f David Howells 2021-06-29 308 static const struct netfs_request_ops ceph_netfs_read_ops = { f0702876e152f0 Jeff Layton 2020-06-01 309 .init_rreq = ceph_init_rreq, f0702876e152f0 Jeff Layton 2020-06-01 @310 .is_cache_enabled = ceph_is_cache_enabled, f0702876e152f0 Jeff Layton 2020-06-01 311 .begin_cache_operation = ceph_begin_cache_operation, f0702876e152f0 Jeff Layton 2020-06-01 312 .issue_op = ceph_netfs_issue_op, f0702876e152f0 Jeff Layton 2020-06-01 313 .expand_readahead = ceph_netfs_expand_readahead, f0702876e152f0 Jeff Layton 2020-06-01 314 .clamp_length = ceph_netfs_clamp_length, d801327d9500c7 Jeff Layton 2020-06-05 315 .check_write_begin = ceph_netfs_check_write_begin, 49870056005ca9 Jeff Layton 2020-07-09 316 .cleanup = ceph_readahead_cleanup, f0702876e152f0 Jeff Layton 2020-06-01 317 }; f0702876e152f0 Jeff Layton 2020-06-01 318 f0702876e152f0 Jeff Layton 2020-06-01 319 /* read a single page, without unlocking it. */ f8a58a6c511659 David Howells 2021-08-11 320 static int ceph_readpage(struct file *file, struct page *subpage) f0702876e152f0 Jeff Layton 2020-06-01 321 { f8a58a6c511659 David Howells 2021-08-11 322 struct folio *folio = page_folio(subpage); f0702876e152f0 Jeff Layton 2020-06-01 323 struct inode *inode = file_inode(file); f0702876e152f0 Jeff Layton 2020-06-01 324 struct ceph_inode_info *ci = ceph_inode(inode); f0702876e152f0 Jeff Layton 2020-06-01 325 struct ceph_vino vino = ceph_vino(inode); f8a58a6c511659 David Howells 2021-08-11 326 size_t len = folio_size(folio); f8a58a6c511659 David Howells 2021-08-11 327 u64 off = folio_file_pos(folio); f0702876e152f0 Jeff Layton 2020-06-01 328 f0702876e152f0 Jeff Layton 2020-06-01 329 if (ci->i_inline_version != CEPH_INLINE_NONE) { f0702876e152f0 Jeff Layton 2020-06-01 330 /* f0702876e152f0 Jeff Layton 2020-06-01 331 * Uptodate inline data should have been added f0702876e152f0 Jeff Layton 2020-06-01 332 * into page cache while getting Fcr caps. f0702876e152f0 Jeff Layton 2020-06-01 333 */ f0702876e152f0 Jeff Layton 2020-06-01 334 if (off == 0) { f8a58a6c511659 David Howells 2021-08-11 335 folio_unlock(folio); f0702876e152f0 Jeff Layton 2020-06-01 336 return -EINVAL; f0702876e152f0 Jeff Layton 2020-06-01 337 } f8a58a6c511659 David Howells 2021-08-11 338 zero_user_segment(&folio->page, 0, folio_size(folio)); f8a58a6c511659 David Howells 2021-08-11 339 folio_mark_uptodate(folio); f8a58a6c511659 David Howells 2021-08-11 340 folio_unlock(folio); f0702876e152f0 Jeff Layton 2020-06-01 341 return 0; f0702876e152f0 Jeff Layton 2020-06-01 342 } f0702876e152f0 Jeff Layton 2020-06-01 343 f8a58a6c511659 David Howells 2021-08-11 344 dout("readpage ino %llx.%llx file %p off %llu len %zu folio %p index %lu\n", f8a58a6c511659 David Howells 2021-08-11 345 vino.ino, vino.snap, file, off, len, folio, folio_index(folio)); f0702876e152f0 Jeff Layton 2020-06-01 346 f8a58a6c511659 David Howells 2021-08-11 @347 return netfs_readpage(file, folio, &ceph_netfs_read_ops, NULL); f0702876e152f0 Jeff Layton 2020-06-01 348 } f0702876e152f0 Jeff Layton 2020-06-01 349 :::::: The code at line 310 was first introduced by commit :::::: f0702876e152f0443911514aec8b2bf563a2432b ceph: convert ceph_readpage to netfs_readpage :::::: TO: Jeff Layton <jlayton(a)kernel.org&gt; :::::: CC: Ilya Dryomov <idryomov(a)gmail.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org