f2fs: fix macro definition stat_inc_cp_count

The macro stat_inc_cp_count accepts a parameter si,
but it was not used, rather the variable sbi was directly used,
which may be a local variable inside a function that calls the macros.
Signed-off-by: Julian Sun <sunjunchao2870@gmail.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/f2fs.h

@@ -3983,7 +3983,7 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
 
 #define stat_inc_cp_call_count(sbi, foreground)				\
 		atomic_inc(&sbi->cp_call_count[(foreground)])
-#define stat_inc_cp_count(si)		(F2FS_STAT(sbi)->cp_count++)
+#define stat_inc_cp_count(sbi)		(F2FS_STAT(sbi)->cp_count++)
 #define stat_io_skip_bggc_count(sbi)	((sbi)->io_skip_bggc++)
 #define stat_other_skip_bggc_count(sbi)	((sbi)->other_skip_bggc++)
 #define stat_inc_dirty_inode(sbi, type)	((sbi)->ndirty_inode[type]++)