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From:   Sasha Levin <Alexander.Levin@microsoft.com>
To:     "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
CC:     Randy Dunlap <rdunlap@infradead.org>,
        Jaegeuk Kim <jaegeuk@kernel.org>, Chao Yu <yuchao0@huawei.com>,
        "linux-f2fs-devel@lists.sourceforge.net" 
        <linux-f2fs-devel@lists.sourceforge.net>,
        Sasha Levin <Alexander.Levin@microsoft.com>
Subject: [PATCH AUTOSEL 4.18 041/131] f2fs: fix defined but not used build
 warnings
Thread-Topic: [PATCH AUTOSEL 4.18 041/131] f2fs: fix defined but not used
 build warnings
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Date:   Sun, 2 Sep 2018 13:03:53 +0000
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From: Randy Dunlap <rdunlap@infradead.org>

[ Upstream commit cb15d1e43db0a6341c1e26ac6a2c74e61b74f1aa ]

Fix build warnings in f2fs when CONFIG_PROC_FS is not enabled
by marking the unused functions as __maybe_unused.

../fs/f2fs/sysfs.c:519:12: warning: 'segment_info_seq_show' defined but not=
 used [-Wunused-function]
../fs/f2fs/sysfs.c:546:12: warning: 'segment_bits_seq_show' defined but not=
 used [-Wunused-function]
../fs/f2fs/sysfs.c:570:12: warning: 'iostat_info_seq_show' defined but not =
used [-Wunused-function]

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Chao Yu <yuchao0@huawei.com>
Cc: linux-f2fs-devel@lists.sourceforge.net
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 fs/f2fs/sysfs.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 2e7e611deaef..5344e21853b2 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -9,6 +9,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <linux/compiler.h>
 #include <linux/proc_fs.h>
 #include <linux/f2fs_fs.h>
 #include <linux/seq_file.h>
@@ -516,7 +517,8 @@ static struct kobject f2fs_feat =3D {
 	.kset	=3D &f2fs_kset,
 };
=20
-static int segment_info_seq_show(struct seq_file *seq, void *offset)
+static int __maybe_unused segment_info_seq_show(struct seq_file *seq,
+						void *offset)
 {
 	struct super_block *sb =3D seq->private;
 	struct f2fs_sb_info *sbi =3D F2FS_SB(sb);
@@ -543,7 +545,8 @@ static int segment_info_seq_show(struct seq_file *seq, =
void *offset)
 	return 0;
 }
=20
-static int segment_bits_seq_show(struct seq_file *seq, void *offset)
+static int __maybe_unused segment_bits_seq_show(struct seq_file *seq,
+						void *offset)
 {
 	struct super_block *sb =3D seq->private;
 	struct f2fs_sb_info *sbi =3D F2FS_SB(sb);
@@ -567,7 +570,8 @@ static int segment_bits_seq_show(struct seq_file *seq, =
void *offset)
 	return 0;
 }
=20
-static int iostat_info_seq_show(struct seq_file *seq, void *offset)
+static int __maybe_unused iostat_info_seq_show(struct seq_file *seq,
+					       void *offset)
 {
 	struct super_block *sb =3D seq->private;
 	struct f2fs_sb_info *sbi =3D F2FS_SB(sb);
--=20
2.17.1