tree: https://github.com/kdave/btrfs-devel.git dev/auth-hash head: 212f7564065bdfda0a55ab1ef52a4868572359de commit: 13be51617b056261da9212d109c77311a895bb6f [158/162] btrfs: add authentication support config: powerpc64-randconfig-r032-20210215 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476) 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 # install powerpc64 cross compiling tool for clang build # apt-get install binutils-powerpc64-linux-gnu # https://github.com/kdave/btrfs-devel/commit/13be51617b056261da9212d109c77... git remote add kdave-btrfs-devel https://github.com/kdave/btrfs-devel.git git fetch --no-tags kdave-btrfs-devel dev/auth-hash git checkout 13be51617b056261da9212d109c77311a895bb6f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:115:1: note: expanded from here __do_insw ^ arch/powerpc/include/asm/io.h:557:56: note: expanded from macro '__do_insw' #define __do_insw(p, b, n) readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/btrfs/super.c:6: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:117:1: note: expanded from here __do_insl ^ arch/powerpc/include/asm/io.h:558:56: note: expanded from macro '__do_insl' #define __do_insl(p, b, n) readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/btrfs/super.c:6: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:119:1: note: expanded from here __do_outsb ^ arch/powerpc/include/asm/io.h:559:58: note: expanded from macro '__do_outsb' #define __do_outsb(p, b, n) writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/btrfs/super.c:6: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:51:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:121:1: note: expanded from here __do_outsw ^ arch/powerpc/include/asm/io.h:560:58: note: expanded from macro '__do_outsw' #define __do_outsw(p, b, n) writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/btrfs/super.c:6: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:123:1: note: expanded from here __do_outsl ^ arch/powerpc/include/asm/io.h:561:58: note: expanded from macro '__do_outsl' #define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ if (btrfs_test_opt(info, AUTH_KEY)) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/btrfs/ctree.h:1396:7: note: expanded from macro 'btrfs_test_opt' BTRFS_MOUNT_##opt) ^~~~~~~~~~~~~~~~~ <scratch space>:81:1: note: expanded from here BTRFS_MOUNT_AUTH_KEY ^~~~~~~~~~~~~~~~~~~~ fs/btrfs/ctree.h:1387:34: note: expanded from macro 'BTRFS_MOUNT_AUTH_KEY' #define BTRFS_MOUNT_AUTH_KEY (1 << 32) ^ ~~ fs/btrfs/super.c:628:8: warning: shift count >= width of type [-Wshift-count-overflow] if (btrfs_test_opt(info, AUTH_KEY)) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/btrfs/ctree.h:1396:7: note: expanded from macro 'btrfs_test_opt' BTRFS_MOUNT_##opt) ^~~~~~~~~~~~~~~~~ <scratch space>:88:1: note: expanded from here BTRFS_MOUNT_AUTH_KEY ^~~~~~~~~~~~~~~~~~~~ fs/btrfs/ctree.h:1387:34: note: expanded from macro 'BTRFS_MOUNT_AUTH_KEY' #define BTRFS_MOUNT_AUTH_KEY (1 << 32) ^ ~~ fs/btrfs/super.c:1127:3: warning: shift count >= width of type [-Wshift-count-overflow] btrfs_set_opt(info->mount_opt, AUTH_KEY); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/btrfs/ctree.h:1393:40: note: expanded from macro 'btrfs_set_opt' #define btrfs_set_opt(o, opt) ((o) |= BTRFS_MOUNT_##opt) ^~~~~~~~~~~~~~~~~ <scratch space>:69:1: note: expanded from here BTRFS_MOUNT_AUTH_KEY ^~~~~~~~~~~~~~~~~~~~ fs/btrfs/ctree.h:1387:34: note: expanded from macro 'BTRFS_MOUNT_AUTH_KEY' #define BTRFS_MOUNT_AUTH_KEY (1 << 32) ^ ~~ fs/btrfs/super.c:1574:6: warning: shift count >= width of type [-Wshift-count-overflow] if (btrfs_test_opt(info, AUTH_KEY)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/btrfs/ctree.h:1396:7: note: expanded from macro 'btrfs_test_opt' BTRFS_MOUNT_##opt) ^~~~~~~~~~~~~~~~~ <scratch space>:102:1: note: expanded from here BTRFS_MOUNT_AUTH_KEY ^~~~~~~~~~~~~~~~~~~~ fs/btrfs/ctree.h:1387:34: note: expanded from macro 'BTRFS_MOUNT_AUTH_KEY' #define BTRFS_MOUNT_AUTH_KEY (1 << 32) ^ ~~ 16 warnings generated. -- In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:85:1: note: expanded from here __do_insw ^ arch/powerpc/include/asm/io.h:557:56: note: expanded from macro '__do_insw' #define __do_insw(p, b, n) readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/btrfs/disk-io.c:7: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:87:1: note: expanded from here __do_insl ^ arch/powerpc/include/asm/io.h:558:56: note: expanded from macro '__do_insl' #define __do_insl(p, b, n) readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/btrfs/disk-io.c:7: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:89:1: note: expanded from here __do_outsb ^ arch/powerpc/include/asm/io.h:559:58: note: expanded from macro '__do_outsb' #define __do_outsb(p, b, n) writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/btrfs/disk-io.c:7: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:51:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:91:1: note: expanded from here __do_outsw ^ arch/powerpc/include/asm/io.h:560:58: note: expanded from macro '__do_outsw' #define __do_outsw(p, b, n) writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/btrfs/disk-io.c:7: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:93:1: note: expanded from here __do_outsl ^ arch/powerpc/include/asm/io.h:561:58: note: expanded from macro '__do_outsl' #define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ if (!btrfs_test_opt(fs_info, AUTH_KEY)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/btrfs/ctree.h:1396:7: note: expanded from macro 'btrfs_test_opt' BTRFS_MOUNT_##opt) ^~~~~~~~~~~~~~~~~ <scratch space>:102:1: note: expanded from here BTRFS_MOUNT_AUTH_KEY ^~~~~~~~~~~~~~~~~~~~ fs/btrfs/ctree.h:1387:34: note: expanded from macro 'BTRFS_MOUNT_AUTH_KEY' #define BTRFS_MOUNT_AUTH_KEY (1 << 32) ^ ~~ 13 warnings generated. -- In file included from fs/btrfs/ioctl.c:7: In file included from include/linux/bio.h:8: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:27:1: note: expanded from here __do_insw ^ arch/powerpc/include/asm/io.h:557:56: note: expanded from macro '__do_insw' #define __do_insw(p, b, n) readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/btrfs/ioctl.c:7: In file included from include/linux/bio.h:8: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:29:1: note: expanded from here __do_insl ^ arch/powerpc/include/asm/io.h:558:56: note: expanded from macro '__do_insl' #define __do_insl(p, b, n) readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/btrfs/ioctl.c:7: In file included from include/linux/bio.h:8: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:31:1: note: expanded from here __do_outsb ^ arch/powerpc/include/asm/io.h:559:58: note: expanded from macro '__do_outsb' #define __do_outsb(p, b, n) writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/btrfs/ioctl.c:7: In file included from include/linux/bio.h:8: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:51:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:33:1: note: expanded from here __do_outsw ^ arch/powerpc/include/asm/io.h:560:58: note: expanded from macro '__do_outsw' #define __do_outsw(p, b, n) writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/btrfs/ioctl.c:7: In file included from include/linux/bio.h:8: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:35:1: note: expanded from here __do_outsl ^ arch/powerpc/include/asm/io.h:561:58: note: expanded from macro '__do_outsl' #define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ if (btrfs_test_opt(fs_info, AUTH_KEY)) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/btrfs/ctree.h:1396:7: note: expanded from macro 'btrfs_test_opt' BTRFS_MOUNT_##opt) ^~~~~~~~~~~~~~~~~ <scratch space>:147:1: note: expanded from here BTRFS_MOUNT_AUTH_KEY ^~~~~~~~~~~~~~~~~~~~ fs/btrfs/ctree.h:1387:34: note: expanded from macro 'BTRFS_MOUNT_AUTH_KEY' #define BTRFS_MOUNT_AUTH_KEY (1 << 32) ^ ~~ 13 warnings generated. vim +608 fs/btrfs/super.c 547 548 /* 549 * Regular mount options parser. Everything that is needed only when 550 * reading in a new superblock is parsed here. 551 * XXX JDM: This needs to be cleaned up for remount. 552 */ 553 int btrfs_parse_options(struct btrfs_fs_info *info, char *options, 554 unsigned long new_flags) 555 { 556 substring_t args[MAX_OPT_ARGS]; 557 char *p, *num; 558 int intarg; 559 int ret = 0; 560 char *compress_type; 561 bool compress_force = false; 562 enum btrfs_compression_type saved_compress_type; 563 int saved_compress_level; 564 bool saved_compress_force; 565 int no_compress = 0; 566 567 if (btrfs_fs_compat_ro(info, FREE_SPACE_TREE)) 568 btrfs_set_opt(info->mount_opt, FREE_SPACE_TREE); 569 else if (btrfs_free_space_cache_v1_active(info)) { 570 if (btrfs_is_zoned(info)) { 571 btrfs_info(info, 572 "zoned: clearing existing space cache"); 573 btrfs_set_super_cache_generation(info->super_copy, 0); 574 } else { 575 btrfs_set_opt(info->mount_opt, SPACE_CACHE); 576 } 577 } 578 579 /* 580 * Even the options are empty, we still need to do extra check 581 * against new flags 582 */ 583 if (!options) 584 goto check; 585 586 while ((p = strsep(&options, ",")) != NULL) { 587 int token; 588 if (!*p) 589 continue; 590 591 token = match_token(p, tokens, args); 592 switch (token) { 593 case Opt_degraded: 594 btrfs_info(info, "allowing degraded mounts"); 595 btrfs_set_opt(info->mount_opt, DEGRADED); 596 break; 597 case Opt_subvol: 598 case Opt_subvol_empty: 599 case Opt_subvolid: 600 case Opt_device: 601 /* 602 * These are parsed by btrfs_parse_subvol_options 603 * and btrfs_parse_early_options 604 * and can be happily ignored here. 605 */ 606 break; 607 case Opt_nodatasum: 609 btrfs_info(info, 610 "nodatasum not supported on an authnticated file-system"); 611 break; 612 } 613 btrfs_set_and_info(info, NODATASUM, 614 "setting nodatasum"); 615 break; 616 case Opt_datasum: 617 if (btrfs_test_opt(info, NODATASUM)) { 618 if (btrfs_test_opt(info, NODATACOW)) 619 btrfs_info(info, 620 "setting datasum, datacow enabled"); 621 else 622 btrfs_info(info, "setting datasum"); 623 } 624 btrfs_clear_opt(info->mount_opt, NODATACOW); 625 btrfs_clear_opt(info->mount_opt, NODATASUM); 626 break; 627 case Opt_nodatacow: 628 if (btrfs_test_opt(info, AUTH_KEY)) { 629 btrfs_info(info, 630 "nodatacow not supported on an authnticated file-system"); 631 break; 632 } 633 if (!btrfs_test_opt(info, NODATACOW)) { 634 if (!btrfs_test_opt(info, COMPRESS) || 635 !btrfs_test_opt(info, FORCE_COMPRESS)) { 636 btrfs_info(info, 637 "setting nodatacow, compression disabled"); 638 } else { 639 btrfs_info(info, "setting nodatacow"); 640 } 641 } 642 btrfs_clear_opt(info->mount_opt, COMPRESS); 643 btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS); 644 btrfs_set_opt(info->mount_opt, NODATACOW); 645 btrfs_set_opt(info->mount_opt, NODATASUM); 646 break; 647 case Opt_datacow: 648 btrfs_clear_and_info(info, NODATACOW, 649 "setting datacow"); 650 break; 651 case Opt_compress_force: 652 case Opt_compress_force_type: 653 compress_force = true; 654 fallthrough; 655 case Opt_compress: 656 case Opt_compress_type: 657 saved_compress_type = btrfs_test_opt(info, 658 COMPRESS) ? 659 info->compress_type : BTRFS_COMPRESS_NONE; 660 saved_compress_force = 661 btrfs_test_opt(info, FORCE_COMPRESS); 662 saved_compress_level = info->compress_level; 663 if (token == Opt_compress || 664 token == Opt_compress_force || 665 strncmp(args[0].from, "zlib", 4) == 0) { 666 compress_type = "zlib"; 667 668 info->compress_type = BTRFS_COMPRESS_ZLIB; 669 info->compress_level = BTRFS_ZLIB_DEFAULT_LEVEL; 670 /* 671 * args[0] contains uninitialized data since 672 * for these tokens we don't expect any 673 * parameter. 674 */ 675 if (token != Opt_compress && 676 token != Opt_compress_force) 677 info->compress_level = 678 btrfs_compress_str2level( 679 BTRFS_COMPRESS_ZLIB, 680 args[0].from + 4); 681 btrfs_set_opt(info->mount_opt, COMPRESS); 682 btrfs_clear_opt(info->mount_opt, NODATACOW); 683 btrfs_clear_opt(info->mount_opt, NODATASUM); 684 no_compress = 0; 685 } else if (strncmp(args[0].from, "lzo", 3) == 0) { 686 compress_type = "lzo"; 687 info->compress_type = BTRFS_COMPRESS_LZO; 688 info->compress_level = 0; 689 btrfs_set_opt(info->mount_opt, COMPRESS); 690 btrfs_clear_opt(info->mount_opt, NODATACOW); 691 btrfs_clear_opt(info->mount_opt, NODATASUM); 692 btrfs_set_fs_incompat(info, COMPRESS_LZO); 693 no_compress = 0; 694 } else if (strncmp(args[0].from, "zstd", 4) == 0) { 695 compress_type = "zstd"; 696 info->compress_type = BTRFS_COMPRESS_ZSTD; 697 info->compress_level = 698 btrfs_compress_str2level( 699 BTRFS_COMPRESS_ZSTD, 700 args[0].from + 4); 701 btrfs_set_opt(info->mount_opt, COMPRESS); 702 btrfs_clear_opt(info->mount_opt, NODATACOW); 703 btrfs_clear_opt(info->mount_opt, NODATASUM); 704 btrfs_set_fs_incompat(info, COMPRESS_ZSTD); 705 no_compress = 0; 706 } else if (strncmp(args[0].from, "no", 2) == 0) { 707 compress_type = "no"; 708 info->compress_level = 0; 709 info->compress_type = 0; 710 btrfs_clear_opt(info->mount_opt, COMPRESS); 711 btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS); 712 compress_force = false; 713 no_compress++; 714 } else { 715 ret = -EINVAL; 716 goto out; 717 } 718 719 if (compress_force) { 720 btrfs_set_opt(info->mount_opt, FORCE_COMPRESS); 721 } else { 722 /* 723 * If we remount from compress-force=xxx to 724 * compress=xxx, we need clear FORCE_COMPRESS 725 * flag, otherwise, there is no way for users 726 * to disable forcible compression separately. 727 */ 728 btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS); 729 } 730 if (no_compress == 1) { 731 btrfs_info(info, "use no compression"); 732 } else if ((info->compress_type != saved_compress_type) || 733 (compress_force != saved_compress_force) || 734 (info->compress_level != saved_compress_level)) { 735 btrfs_info(info, "%s %s compression, level %d", 736 (compress_force) ? "force" : "use", 737 compress_type, info->compress_level); 738 } 739 compress_force = false; 740 break; 741 case Opt_ssd: 742 btrfs_set_and_info(info, SSD, 743 "enabling ssd optimizations"); 744 btrfs_clear_opt(info->mount_opt, NOSSD); 745 break; 746 case Opt_ssd_spread: 747 btrfs_set_and_info(info, SSD, 748 "enabling ssd optimizations"); 749 btrfs_set_and_info(info, SSD_SPREAD, 750 "using spread ssd allocation scheme"); 751 btrfs_clear_opt(info->mount_opt, NOSSD); 752 break; 753 case Opt_nossd: 754 btrfs_set_opt(info->mount_opt, NOSSD); 755 btrfs_clear_and_info(info, SSD, 756 "not using ssd optimizations"); 757 fallthrough; 758 case Opt_nossd_spread: 759 btrfs_clear_and_info(info, SSD_SPREAD, 760 "not using spread ssd allocation scheme"); 761 break; 762 case Opt_barrier: 763 btrfs_clear_and_info(info, NOBARRIER, 764 "turning on barriers"); 765 break; 766 case Opt_nobarrier: 767 btrfs_set_and_info(info, NOBARRIER, 768 "turning off barriers"); 769 break; 770 case Opt_thread_pool: 771 ret = match_int(&args[0], &intarg); 772 if (ret) { 773 goto out; 774 } else if (intarg == 0) { 775 ret = -EINVAL; 776 goto out; 777 } 778 info->thread_pool_size = intarg; 779 break; 780 case Opt_max_inline: 781 num = match_strdup(&args[0]); 782 if (num) { 783 info->max_inline = memparse(num, NULL); 784 kfree(num); 785 786 if (info->max_inline) { 787 info->max_inline = min_t(u64, 788 info->max_inline, 789 info->sectorsize); 790 } 791 btrfs_info(info, "max_inline at %llu", 792 info->max_inline); 793 } else { 794 ret = -ENOMEM; 795 goto out; 796 } 797 break; 798 case Opt_acl: 799 #ifdef CONFIG_BTRFS_FS_POSIX_ACL 800 info->sb->s_flags |= SB_POSIXACL; 801 break; 802 #else 803 btrfs_err(info, "support for ACL not compiled in!"); 804 ret = -EINVAL; 805 goto out; 806 #endif 807 case Opt_noacl: 808 info->sb->s_flags &= ~SB_POSIXACL; 809 break; 810 case Opt_notreelog: 811 btrfs_set_and_info(info, NOTREELOG, 812 "disabling tree log"); 813 break; 814 case Opt_treelog: 815 btrfs_clear_and_info(info, NOTREELOG, 816 "enabling tree log"); 817 break; 818 case Opt_norecovery: 819 case Opt_nologreplay: 820 btrfs_warn(info, 821 "'nologreplay' is deprecated, use 'rescue=nologreplay' instead"); 822 btrfs_set_and_info(info, NOLOGREPLAY, 823 "disabling log replay at mount time"); 824 break; 825 case Opt_flushoncommit: 826 btrfs_set_and_info(info, FLUSHONCOMMIT, 827 "turning on flush-on-commit"); 828 break; 829 case Opt_noflushoncommit: 830 btrfs_clear_and_info(info, FLUSHONCOMMIT, 831 "turning off flush-on-commit"); 832 break; 833 case Opt_ratio: 834 ret = match_int(&args[0], &intarg); 835 if (ret) 836 goto out; 837 info->metadata_ratio = intarg; 838 btrfs_info(info, "metadata ratio %u", 839 info->metadata_ratio); 840 break; 841 case Opt_discard: 842 case Opt_discard_mode: 843 if (token == Opt_discard || 844 strcmp(args[0].from, "sync") == 0) { 845 btrfs_clear_opt(info->mount_opt, DISCARD_ASYNC); 846 btrfs_set_and_info(info, DISCARD_SYNC, 847 "turning on sync discard"); 848 } else if (strcmp(args[0].from, "async") == 0) { 849 btrfs_clear_opt(info->mount_opt, DISCARD_SYNC); 850 btrfs_set_and_info(info, DISCARD_ASYNC, 851 "turning on async discard"); 852 } else { 853 ret = -EINVAL; 854 goto out; 855 } 856 break; 857 case Opt_nodiscard: 858 btrfs_clear_and_info(info, DISCARD_SYNC, 859 "turning off discard"); 860 btrfs_clear_and_info(info, DISCARD_ASYNC, 861 "turning off async discard"); 862 break; 863 case Opt_space_cache: 864 case Opt_space_cache_version: 865 if (token == Opt_space_cache || 866 strcmp(args[0].from, "v1") == 0) { 867 btrfs_clear_opt(info->mount_opt, 868 FREE_SPACE_TREE); 869 btrfs_set_and_info(info, SPACE_CACHE, 870 "enabling disk space caching"); 871 } else if (strcmp(args[0].from, "v2") == 0) { 872 btrfs_clear_opt(info->mount_opt, 873 SPACE_CACHE); 874 btrfs_set_and_info(info, FREE_SPACE_TREE, 875 "enabling free space tree"); 876 } else { 877 ret = -EINVAL; 878 goto out; 879 } 880 break; 881 case Opt_rescan_uuid_tree: 882 btrfs_set_opt(info->mount_opt, RESCAN_UUID_TREE); 883 break; 884 case Opt_no_space_cache: 885 if (btrfs_test_opt(info, SPACE_CACHE)) { 886 btrfs_clear_and_info(info, SPACE_CACHE, 887 "disabling disk space caching"); 888 } 889 if (btrfs_test_opt(info, FREE_SPACE_TREE)) { 890 btrfs_clear_and_info(info, FREE_SPACE_TREE, 891 "disabling free space tree"); 892 } 893 break; 894 case Opt_inode_cache: 895 case Opt_noinode_cache: 896 btrfs_warn(info, 897 "the 'inode_cache' option is deprecated and has no effect since 5.11"); 898 break; 899 case Opt_clear_cache: 900 btrfs_set_and_info(info, CLEAR_CACHE, 901 "force clearing of disk cache"); 902 break; 903 case Opt_user_subvol_rm_allowed: 904 btrfs_set_opt(info->mount_opt, USER_SUBVOL_RM_ALLOWED); 905 break; 906 case Opt_enospc_debug: 907 btrfs_set_opt(info->mount_opt, ENOSPC_DEBUG); 908 break; 909 case Opt_noenospc_debug: 910 btrfs_clear_opt(info->mount_opt, ENOSPC_DEBUG); 911 break; 912 case Opt_defrag: 913 btrfs_set_and_info(info, AUTO_DEFRAG, 914 "enabling auto defrag"); 915 break; 916 case Opt_nodefrag: 917 btrfs_clear_and_info(info, AUTO_DEFRAG, 918 "disabling auto defrag"); 919 break; 920 case Opt_recovery: 921 case Opt_usebackuproot: 922 btrfs_warn(info, 923 "'%s' is deprecated, use 'rescue=usebackuproot' instead", 924 token == Opt_recovery ? "recovery" : 925 "usebackuproot"); 926 btrfs_info(info, 927 "trying to use backup root at mount time"); 928 btrfs_set_opt(info->mount_opt, USEBACKUPROOT); 929 break; 930 case Opt_skip_balance: 931 btrfs_set_opt(info->mount_opt, SKIP_BALANCE); 932 break; 933 #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY 934 case Opt_check_integrity_including_extent_data: 935 btrfs_info(info, 936 "enabling check integrity including extent data"); 937 btrfs_set_opt(info->mount_opt, 938 CHECK_INTEGRITY_INCLUDING_EXTENT_DATA); 939 btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY); 940 break; 941 case Opt_check_integrity: 942 btrfs_info(info, "enabling check integrity"); 943 btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY); 944 break; 945 case Opt_check_integrity_print_mask: 946 ret = match_int(&args[0], &intarg); 947 if (ret) 948 goto out; 949 info->check_integrity_print_mask = intarg; 950 btrfs_info(info, "check_integrity_print_mask 0x%x", 951 info->check_integrity_print_mask); 952 break; 953 #else 954 case Opt_check_integrity_including_extent_data: 955 case Opt_check_integrity: 956 case Opt_check_integrity_print_mask: 957 btrfs_err(info, 958 "support for check_integrity* not compiled in!"); 959 ret = -EINVAL; 960 goto out; 961 #endif 962 case Opt_fatal_errors: 963 if (strcmp(args[0].from, "panic") == 0) 964 btrfs_set_opt(info->mount_opt, 965 PANIC_ON_FATAL_ERROR); 966 else if (strcmp(args[0].from, "bug") == 0) 967 btrfs_clear_opt(info->mount_opt, 968 PANIC_ON_FATAL_ERROR); 969 else { 970 ret = -EINVAL; 971 goto out; 972 } 973 break; 974 case Opt_commit_interval: 975 intarg = 0; 976 ret = match_int(&args[0], &intarg); 977 if (ret) 978 goto out; 979 if (intarg == 0) { 980 btrfs_info(info, 981 "using default commit interval %us", 982 BTRFS_DEFAULT_COMMIT_INTERVAL); 983 intarg = BTRFS_DEFAULT_COMMIT_INTERVAL; 984 } else if (intarg > 300) { 985 btrfs_warn(info, "excessive commit interval %d", 986 intarg); 987 } 988 info->commit_interval = intarg; 989 break; 990 case Opt_rescue: 991 ret = parse_rescue_options(info, args[0].from); 992 if (ret < 0) 993 goto out; 994 break; 995 #ifdef CONFIG_BTRFS_DEBUG 996 case Opt_fragment_all: 997 btrfs_info(info, "fragmenting all space"); 998 btrfs_set_opt(info->mount_opt, FRAGMENT_DATA); 999 btrfs_set_opt(info->mount_opt, FRAGMENT_METADATA); 1000 break; 1001 case Opt_fragment_metadata: 1002 btrfs_info(info, "fragmenting metadata"); 1003 btrfs_set_opt(info->mount_opt, 1004 FRAGMENT_METADATA); 1005 break; 1006 case Opt_fragment_data: 1007 btrfs_info(info, "fragmenting data"); 1008 btrfs_set_opt(info->mount_opt, FRAGMENT_DATA); 1009 break; 1010 #endif 1011 #ifdef CONFIG_BTRFS_FS_REF_VERIFY 1012 case Opt_ref_verify: 1013 btrfs_info(info, "doing ref verification"); 1014 btrfs_set_opt(info->mount_opt, REF_VERIFY); 1015 break; 1016 #endif 1017 case Opt_err: 1018 btrfs_err(info, "unrecognized mount option '%s'", p); 1019 ret = -EINVAL; 1020 goto out; 1021 default: 1022 break; 1023 } 1024 } 1025 check: 1026 /* We're read-only, don't have to check. */ 1027 if (new_flags & SB_RDONLY) 1028 goto out; 1029 1030 if (check_ro_option(info, BTRFS_MOUNT_NOLOGREPLAY, "nologreplay") || 1031 check_ro_option(info, BTRFS_MOUNT_IGNOREBADROOTS, "ignorebadroots") || 1032 check_ro_option(info, BTRFS_MOUNT_IGNOREDATACSUMS, "ignoredatacsums")) 1033 ret = -EINVAL; 1034 out: 1035 if (btrfs_fs_compat_ro(info, FREE_SPACE_TREE) && 1036 !btrfs_test_opt(info, FREE_SPACE_TREE) && 1037 !btrfs_test_opt(info, CLEAR_CACHE)) { 1038 btrfs_err(info, "cannot disable free space tree"); 1039 ret = -EINVAL; 1040 1041 } 1042 if (!ret) 1043 ret = btrfs_check_mountopts_zoned(info); 1044 if (!ret && btrfs_test_opt(info, SPACE_CACHE)) 1045 btrfs_info(info, "disk space caching is enabled"); 1046 if (!ret && btrfs_test_opt(info, FREE_SPACE_TREE)) 1047 btrfs_info(info, "using free space tree"); 1048 return ret; 1049 } 1050 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org