erofs: simplify erofs_xattr_generic_get()

erofs_xattr_generic_get() won't be called from xattr handlers other than
user/trusted/security xattr handler, and thus there's no need of extra
checking.

Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230330082910.125374-4-jefflexu@linux.alibaba.com
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Yue Hu <huyue2@coolpad.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>

diff --git a/fs/erofs/xattr.c b/fs/erofs/xattr.c
index dc36a0c..d76b74e 100644 (file)
--- a/fs/erofs/xattr.c
+++ b/fs/erofs/xattr.c
@@ -432,20 +432,9 @@ static int erofs_xattr_generic_get(const struct xattr_handler *handler,
                                   struct dentry *unused, struct inode *inode,
                                   const char *name, void *buffer, size_t size)
 {
-       struct erofs_sb_info *const sbi = EROFS_I_SB(inode);
-
-       switch (handler->flags) {
-       case EROFS_XATTR_INDEX_USER:
-               if (!test_opt(&sbi->opt, XATTR_USER))
-                       return -EOPNOTSUPP;
-               break;
-       case EROFS_XATTR_INDEX_TRUSTED:
-               break;
-       case EROFS_XATTR_INDEX_SECURITY:
-               break;
-       default:
-               return -EINVAL;
-       }
+       if (handler->flags == EROFS_XATTR_INDEX_USER &&
+           !test_opt(&EROFS_I_SB(inode)->opt, XATTR_USER))
+               return -EOPNOTSUPP;
 
        return erofs_getxattr(inode, handler->flags, name, buffer, size);
 }