[josef-btrfs:new-kill-btree-inode 2/27] fs/btrfs/extent-tree.o: warning: objtool: btrfs_delalloc_release_extents()+0x3b: unreachable instruction

kbuild test robot <fengguang.wu@xxxxxxxxx> · Sun, 1 Oct 2017 15:59:07 +0800

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next.git new-kill-btree-inode
head:   5dfd4a0012c1253260da07bee3fa3d4c13aac616
commit: acb56905bda3591b3c0515ebc745340fc20f18da [2/27] Btrfs: rework outstanding_extents
config: x86_64-randconfig-b0-10011450 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        git checkout acb56905bda3591b3c0515ebc745340fc20f18da
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

>> fs/btrfs/extent-tree.o: warning: objtool: btrfs_delalloc_release_extents()+0x3b: unreachable instruction
--
>> fs/btrfs/inode.o: warning: objtool: btrfs_split_extent_hook()+0x69: unreachable instruction
--
>> fs/btrfs/ordered-data.o: warning: objtool: __btrfs_add_ordered_extent()+0x3b7: unreachable instruction

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