[PATCH] ubifs: code cleanup by removing ifdef macro surrounding

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Define ubifs_listxattr and ubifs_xattr_handlers to NULL
when CONFIG_UBIFS_FS_XATTR is not enabled, then we can
remove many ugly ifdef macros in the code.

Signed-off-by: Chengguang Xu <cgxu519@xxxxxxxxxxxx>
---
Only compile tested.

 fs/ubifs/dir.c   | 2 --
 fs/ubifs/file.c  | 4 ----
 fs/ubifs/super.c | 2 --
 fs/ubifs/ubifs.h | 6 ++++--
 4 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index ef85ec167a84..ab4faebc798e 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -1636,9 +1636,7 @@ const struct inode_operations ubifs_dir_inode_operations = {
 	.rename      = ubifs_rename,
 	.setattr     = ubifs_setattr,
 	.getattr     = ubifs_getattr,
-#ifdef CONFIG_UBIFS_FS_XATTR
 	.listxattr   = ubifs_listxattr,
-#endif
 	.update_time = ubifs_update_time,
 	.tmpfile     = ubifs_tmpfile,
 };
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 743928efffc1..e5e2d55d353e 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -1649,9 +1649,7 @@ const struct address_space_operations ubifs_file_address_operations = {
 const struct inode_operations ubifs_file_inode_operations = {
 	.setattr     = ubifs_setattr,
 	.getattr     = ubifs_getattr,
-#ifdef CONFIG_UBIFS_FS_XATTR
 	.listxattr   = ubifs_listxattr,
-#endif
 	.update_time = ubifs_update_time,
 };
 
@@ -1659,9 +1657,7 @@ const struct inode_operations ubifs_symlink_inode_operations = {
 	.get_link    = ubifs_get_link,
 	.setattr     = ubifs_setattr,
 	.getattr     = ubifs_getattr,
-#ifdef CONFIG_UBIFS_FS_XATTR
 	.listxattr   = ubifs_listxattr,
-#endif
 	.update_time = ubifs_update_time,
 };
 
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 7fc2f3f07c16..f4295840a710 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -2168,9 +2168,7 @@ static int ubifs_fill_super(struct super_block *sb, void *data, int silent)
 	if (c->max_inode_sz > MAX_LFS_FILESIZE)
 		sb->s_maxbytes = c->max_inode_sz = MAX_LFS_FILESIZE;
 	sb->s_op = &ubifs_super_operations;
-#ifdef CONFIG_UBIFS_FS_XATTR
 	sb->s_xattr = ubifs_xattr_handlers;
-#endif
 	fscrypt_set_ops(sb, &ubifs_crypt_operations);
 
 	mutex_lock(&c->umount_mutex);
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index bff682309fbe..74849e39c1a3 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1999,17 +1999,19 @@ int ubifs_getattr(const struct path *path, struct kstat *stat,
 int ubifs_check_dir_empty(struct inode *dir);
 
 /* xattr.c */
-extern const struct xattr_handler *ubifs_xattr_handlers[];
-ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size);
 int ubifs_xattr_set(struct inode *host, const char *name, const void *value,
 		    size_t size, int flags, bool check_lock);
 ssize_t ubifs_xattr_get(struct inode *host, const char *name, void *buf,
 			size_t size);
 
 #ifdef CONFIG_UBIFS_FS_XATTR
+extern const struct xattr_handler *ubifs_xattr_handlers[];
+ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size);
 void ubifs_evict_xattr_inode(struct ubifs_info *c, ino_t xattr_inum);
 int ubifs_purge_xattrs(struct inode *host);
 #else
+#define ubifs_listxattr NULL
+#define ubifs_xattr_handlers NULL
 static inline void ubifs_evict_xattr_inode(struct ubifs_info *c,
 					   ino_t xattr_inum) { }
 static inline int ubifs_purge_xattrs(struct inode *host)
-- 
2.20.1



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