btrfs: Remove extra parentheses from condition in copy_items()

There is no need for the extra pair of parentheses, remove it. This
fixes the following warning when building with clang:

fs/btrfs/tree-log.c:3694:10: warning: equality comparison with extraneous
  parentheses [-Wparentheses-equality]
                if ((i == (nr - 1)))
                     ~~^~~~~~~~~~~

Also remove the unnecessary parentheses around the substraction.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index a2a84e266d37..ad7f4bab640b 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3688,7 +3688,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans,
 
                 src_offset = btrfs_item_ptr_offset(src, start_slot + i);
 
-                if ((i == (nr - 1)))
+                if (i == nr - 1)
                         last_key = ins_keys[i];
 
                 if (ins_keys[i].type == BTRFS_INODE_ITEM_KEY) {