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Date: Fri, 6 May 2022 11:16:23 +0800
From: kernel test robot <lkp@...el.com>
To: Allison Henderson <allison.henderson@...cle.com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
Dave Chinner <dchinner@...hat.com>
Subject: [allisonhenderson-xfs-work:xfs-5.19-compose_pptrs 25/32]
fs/xfs/libxfs/xfs_attr.c:571:44: warning: this statement may fall through
tree: https://github.com/allisonhenderson/xfs_work.git xfs-5.19-compose_pptrs
head: 74ecccf0e89a132c2490f3a63661c535974c6a08
commit: 7a5d447970de2d3b003b9015e2bce3bf0d15e3db [25/32] xfs: parent pointer attribute creation
config: arc-randconfig-r001-20220505 (https://download.01.org/0day-ci/archive/20220506/202205061123.lsXtfPqy-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 11.3.0
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://github.com/allisonhenderson/xfs_work/commit/7a5d447970de2d3b003b9015e2bce3bf0d15e3db
git remote add allisonhenderson-xfs-work https://github.com/allisonhenderson/xfs_work.git
git fetch --no-tags allisonhenderson-xfs-work xfs-5.19-compose_pptrs
git checkout 7a5d447970de2d3b003b9015e2bce3bf0d15e3db
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash fs/xfs/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
fs/xfs/libxfs/xfs_attr.c: In function 'xfs_attr_set_iter':
fs/xfs/libxfs/xfs_attr.c:559:42: warning: unused variable 'mp' [-Wunused-variable]
559 | struct xfs_mount *mp = args->dp->i_mount;
| ^~
fs/xfs/libxfs/xfs_attr.c:558:50: warning: unused variable 'forkoff' [-Wunused-variable]
558 | int sf_size, forkoff, error = 0;
| ^~~~~~~
fs/xfs/libxfs/xfs_attr.c:557:42: warning: unused variable 'bp' [-Wunused-variable]
557 | struct xfs_buf *bp = NULL;
| ^~
fs/xfs/libxfs/xfs_attr.c:556:42: warning: unused variable 'dp' [-Wunused-variable]
556 | struct xfs_inode *dp = args->dp;
| ^~
fs/xfs/libxfs/xfs_attr.c: In function 'xfs_attr_set':
fs/xfs/libxfs/xfs_attr.c:824:72: warning: bitwise comparison always evaluates to true [-Wtautological-compare]
824 | rsvd = ((args->attr_filter & XFS_ATTR_ROOT) | XFS_ATTR_PARENT) != 0;
| ^~
fs/xfs/libxfs/xfs_attr.c: In function 'xfs_attr_set_iter':
>> fs/xfs/libxfs/xfs_attr.c:571:44: warning: this statement may fall through [-Wimplicit-fallthrough=]
571 | args->dp->i_afp->if_format = XFS_DINODE_FMT_EXTENTS;
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_attr.c:572:9: note: here
572 | case XFS_DAS_SF_ADD:
| ^~~~
At top level:
fs/xfs/libxfs/xfs_attr.c:1477:1: warning: 'xfs_attr_refillstate' defined but not used [-Wunused-function]
1477 | xfs_attr_refillstate(xfs_da_state_t *state)
| ^~~~~~~~~~~~~~~~~~~~
--
>> fs/xfs/libxfs/xfs_parent.c:55:1: warning: no previous prototype for 'xfs_init_parent_name_rec' [-Wmissing-prototypes]
55 | xfs_init_parent_name_rec(
| ^~~~~~~~~~~~~~~~~~~~~~~~
>> fs/xfs/libxfs/xfs_parent.c:70:1: warning: no previous prototype for 'xfs_init_parent_name_irec' [-Wmissing-prototypes]
70 | xfs_init_parent_name_irec(
| ^~~~~~~~~~~~~~~~~~~~~~~~~
vim +571 fs/xfs/libxfs/xfs_attr.c
542
543 /*
544 * Run the attribute operation specified in @attr.
545 *
546 * This routine is meant to function as a delayed operation and will set the
547 * state to XFS_DAS_DONE when the operation is complete. Calling functions will
548 * need to handle this, and recall the function until either an error or
549 * XFS_DAS_DONE is detected.
550 */
551 int
552 xfs_attr_set_iter(
553 struct xfs_attr_item *attr)
554 {
555 struct xfs_da_args *args = attr->xattri_da_args;
556 struct xfs_inode *dp = args->dp;
557 struct xfs_buf *bp = NULL;
558 int sf_size, forkoff, error = 0;
559 struct xfs_mount *mp = args->dp->i_mount;
560
561
562 /* State machine switch */
563 next_state:
564 switch (attr->xattri_dela_state) {
565 case XFS_DAS_UNINIT:
566 sf_size = sizeof(struct xfs_attr_sf_hdr) +
567 xfs_attr_sf_entsize_byname(args->namelen,
568 args->valuelen);
569 xfs_bmap_set_attrforkoff(args->dp, sf_size, NULL);
570 args->dp->i_afp = kmem_cache_zalloc(xfs_ifork_cache, 0);
> 571 args->dp->i_afp->if_format = XFS_DINODE_FMT_EXTENTS;
572 case XFS_DAS_SF_ADD:
573 return xfs_attr_sf_addname(attr);
574 case XFS_DAS_LEAF_ADD:
575 return xfs_attr_leaf_addname(attr);
576 case XFS_DAS_NODE_ADD:
577 return xfs_attr_node_addname(attr);
578
579 case XFS_DAS_SF_REMOVE:
580 error = xfs_attr_sf_removename(args);
581 attr->xattri_dela_state = xfs_attr_complete_op(attr,
582 xfs_attr_init_add_state(args));
583 break;
584 case XFS_DAS_LEAF_REMOVE:
585 error = xfs_attr_leaf_removename(args);
586 attr->xattri_dela_state = xfs_attr_complete_op(attr,
587 xfs_attr_init_add_state(args));
588 break;
589 case XFS_DAS_NODE_REMOVE:
590 error = xfs_attr_node_removename_setup(attr);
591 if (error)
592 return error;
593 attr->xattri_dela_state = XFS_DAS_NODE_REMOVE_RMT;
594 if (args->rmtblkno == 0)
595 attr->xattri_dela_state++;
596 break;
597
598 case XFS_DAS_LEAF_SET_RMT:
599 case XFS_DAS_NODE_SET_RMT:
600 error = xfs_attr_rmtval_find_space(attr);
601 if (error)
602 return error;
603 attr->xattri_dela_state++;
604 fallthrough;
605
606 case XFS_DAS_LEAF_ALLOC_RMT:
607 case XFS_DAS_NODE_ALLOC_RMT:
608 error = xfs_attr_rmtval_alloc(attr);
609 if (error)
610 return error;
611 /*
612 * If there is still more to allocate we need to roll the
613 * transaction so we have a full transaction reservation for
614 * the next allocation.
615 */
616 if (attr->xattri_blkcnt > 0)
617 break;
618 if (attr->xattri_dela_state == XFS_DAS_DONE)
619 break;
620
621 goto next_state;
622
623 case XFS_DAS_LEAF_REPLACE:
624 case XFS_DAS_NODE_REPLACE:
625 /*
626 * We must "flip" the incomplete flags on the "new" and "old"
627 * attribute/value pairs so that one disappears and one appears
628 * atomically.
629 */
630 error = xfs_attr3_leaf_flipflags(args);
631 if (error)
632 return error;
633 /*
634 * We must commit the flag value change now to make it atomic
635 * and then we can start the next trans in series at REMOVE_OLD.
636 */
637 attr->xattri_dela_state++;
638 break;
639
640 case XFS_DAS_LEAF_REMOVE_OLD:
641 case XFS_DAS_NODE_REMOVE_OLD:
642 /*
643 * If we have a remote attr, start the process of removing it
644 * by invalidating any cached buffers.
645 *
646 * If we don't have a remote attr, we skip the remote block
647 * removal state altogether with a second state increment.
648 */
649 xfs_attr_restore_rmt_blk(args);
650 if (args->rmtblkno) {
651 error = xfs_attr_rmtval_invalidate(args);
652 if (error)
653 return error;
654 } else {
655 attr->xattri_dela_state++;
656 }
657
658 attr->xattri_dela_state++;
659 goto next_state;
660
661 case XFS_DAS_LEAF_REMOVE_RMT:
662 case XFS_DAS_NODE_REMOVE_RMT:
663 error = xfs_attr_rmtval_remove(attr);
664 if (error == -EAGAIN) {
665 error = 0;
666 break;
667 }
668 if (error)
669 return error;
670
671 /*
672 * We've finished removing the remote attr blocks, so commit the
673 * transaction and move on to removing the attr name from the
674 * leaf/node block. Removing the attr might require a full
675 * transaction reservation for btree block freeing, so we
676 * can't do that in the same transaction where we removed the
677 * remote attr blocks.
678 */
679 attr->xattri_dela_state++;
680 break;
681
682 case XFS_DAS_LEAF_REMOVE_ATTR:
683 error = xfs_attr_leaf_remove_attr(attr);
684 attr->xattri_dela_state = xfs_attr_complete_op(attr,
685 xfs_attr_init_add_state(args));
686 break;
687
688 case XFS_DAS_NODE_REMOVE_ATTR:
689 error = xfs_attr_node_remove_attr(attr);
690 attr->xattri_dela_state = xfs_attr_complete_op(attr,
691 xfs_attr_init_add_state(args));
692 break;
693 default:
694 ASSERT(0);
695 break;
696 }
697
698 trace_xfs_attr_set_iter_return(attr->xattri_dela_state, args->dp);
699 return error;
700 }
701
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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