gcc now warns about taking an address of a packed structure member. This happens here because of how be32_add_cpu() works; just open-code the modification instead. Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx> --- V2: fix key-> vs rec-> derp derp thinko V3: drop local temp variable, add comment diff --git a/fs/xfs/libxfs/xfs_rmap_btree.c b/fs/xfs/libxfs/xfs_rmap_btree.c index fc78efa52c94..c6f6a7ec6121 100644 --- a/fs/xfs/libxfs/xfs_rmap_btree.c +++ b/fs/xfs/libxfs/xfs_rmap_btree.c @@ -187,7 +187,9 @@ xfs_rmapbt_init_high_key_from_rec( adj = be32_to_cpu(rec->rmap.rm_blockcount) - 1; key->rmap.rm_startblock = rec->rmap.rm_startblock; - be32_add_cpu(&key->rmap.rm_startblock, adj); + /* do this manually to avoid gcc warning about alignment */ + key->rmap.rm_startblock = + cpu_to_be32(be32_to_cpu(key->rmap.rm_startblock) - adj); key->rmap.rm_owner = rec->rmap.rm_owner; key->rmap.rm_offset = rec->rmap.rm_offset; if (XFS_RMAP_NON_INODE_OWNER(be64_to_cpu(rec->rmap.rm_owner)) ||