linux-kernel - [PATCH] btrfs: remove unused pointer 'tree'

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Message-Id: <20180828132101.9559-1-colin.king@canonical.com>
Date:   Tue, 28 Aug 2018 14:21:01 +0100
From:   Colin King <colin.king@...onical.com>
To:     Chris Mason <clm@...com>, Josef Bacik <jbacik@...com>,
        David Sterba <dsterba@...e.com>, linux-btrfs@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] btrfs: remove unused pointer 'tree'

From: Colin Ian King <colin.king@...onical.com>

Pointer 'tree' is being assigned but is never used hence it is
redundant and can be removed.

Cleans up clang warning:
warning: variable 'tree' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 fs/btrfs/compression.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 9bfa66592aa7..8703ce68fe9d 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -528,7 +528,6 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
 				 int mirror_num, unsigned long bio_flags)
 {
 	struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
-	struct extent_io_tree *tree;
 	struct extent_map_tree *em_tree;
 	struct compressed_bio *cb;
 	unsigned long compressed_len;
@@ -545,7 +544,6 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
 	int faili = 0;
 	u32 *sums;
 
-	tree = &BTRFS_I(inode)->io_tree;
 	em_tree = &BTRFS_I(inode)->extent_tree;
 
 	/* we need the actual starting offset of this extent in the file */
-- 
2.17.1