-static ssize_t read_file_blob(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct debugfs_blob_wrapper *blob = file->private_data;
- return simple_read_from_buffer(user_buf, count, ppos, blob->data,
- blob->size);
-}
-
-static struct file_operations fops_blob = {
- .read = read_file_blob,
- .open = default_open,
-};
-
-/**
- * debugfs_create_blob - create a file in the debugfs filesystem that is
- * used to read and write a binary blob.
- *
- * @name: a pointer to a string containing the name of the file to create.
- * @mode: the permission that the file should have
- * @parent: a pointer to the parent dentry for this file. This should be a
- * directory dentry if set. If this paramater is NULL, then the
- * file will be created in the root of the debugfs filesystem.
- * @blob: a pointer to a struct debugfs_blob_wrapper which contains a pointer
- * to the blob data and the size of the data.
- *
- * This function creates a file in debugfs with the given name that exports
- * @blob->data as a binary blob. If the @mode variable is so set it can be
- * read from. Writing is not supported.
- *
- * This function will return a pointer to a dentry if it succeeds. This
- * pointer must be passed to the debugfs_remove() function when the file is
- * to be removed (no automatic cleanup happens if your module is unloaded,
- * you are responsible here.) If an error occurs, NULL will be returned.
- *
- * If debugfs is not enabled in the kernel, the value -ENODEV will be
- * returned. It is not wise to check for this value, but rather, check for
- * NULL or !NULL instead as to eliminate the need for #ifdef in the calling
- * code.
- */
-struct dentry *debugfs_create_blob(const char *name, mode_t mode,
- struct dentry *parent,
- struct debugfs_blob_wrapper *blob)
-{
- return debugfs_create_file(name, mode, parent, blob, &fops_blob);
-}
-EXPORT_SYMBOL_GPL(debugfs_create_blob);