f2fs-tools: avoid unused parameter build errors

This patch specifies unused parameters explicitly to avoid build errors.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fsck/fsck.c b/fsck/fsck.c
index f1cb438..507437d 100644
--- a/fsck/fsck.c
+++ b/fsck/fsck.c
@@ -2298,7 +2298,8 @@
 
 #else
 
-static int check_curseg_write_pointer(struct f2fs_sb_info *sbi, int type)
+static int check_curseg_write_pointer(struct f2fs_sb_info *UNUSED(sbi),
+					int UNUSED(type))
 {
 	return 0;
 }
@@ -2865,7 +2866,7 @@
 
 #else
 
-static void fix_wp_sit_alignment(struct f2fs_sb_info *sbi)
+static void fix_wp_sit_alignment(struct f2fs_sb_info *UNUSED(sbi))
 {
 	return;
 }
diff --git a/fsck/mount.c b/fsck/mount.c
index 416187f..882f1ea 100644
--- a/fsck/mount.c
+++ b/fsck/mount.c
@@ -2519,8 +2519,8 @@
 
 #else
 
-static bool write_pointer_at_zone_start(struct f2fs_sb_info *sbi,
-					unsigned int zone_segno)
+static bool write_pointer_at_zone_start(struct f2fs_sb_info *UNUSED(sbi),
+					unsigned int UNUSED(zone_segno))
 {
 	return true;
 }
diff --git a/lib/libf2fs_zoned.c b/lib/libf2fs_zoned.c
index 8b88fe9..e58d3ce 100644
--- a/lib/libf2fs_zoned.c
+++ b/lib/libf2fs_zoned.c
@@ -474,13 +474,14 @@
 
 #else
 
-int f2fs_report_zone(int i, u_int64_t sector, void *blkzone)
+int f2fs_report_zone(int i, u_int64_t UNUSED(sector), void *UNUSED(blkzone))
 {
 	ERR_MSG("%d: Unsupported zoned block device\n", i);
 	return -1;
 }
 
-int f2fs_report_zones(int i, report_zones_cb_t *report_zones_cb, void *opaque)
+int f2fs_report_zones(int i, report_zones_cb_t *UNUSED(report_zones_cb),
+					void *UNUSED(opaque))
 {
 	ERR_MSG("%d: Unsupported zoned block device\n", i);
 	return -1;
@@ -513,7 +514,7 @@
 	return -1;
 }
 
-int f2fs_reset_zone(int i, void *blkzone)
+int f2fs_reset_zone(int i, void *UNUSED(blkzone))
 {
 	ERR_MSG("%d: Unsupported zoned block device\n", i);
 	return -1;