bootconfig: Fix the kerneldoc of _xbc_exit()

BugLink: https://bugs.launchpad.net/bugs/2097393

[ Upstream commit 298b871 ]

Fix the kerneldoc of _xbc_exit() which is updated to have an @early
argument and the function name is changed.

Link: https://lore.kernel.org/all/171321744474.599864.13532445969528690358.stgit@devnote2/

Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Fixes: 89f9a1e ("bootconfig: use memblock_free_late to free xbc memory to buddy")
Signed-off-by: Masami Hiramatsu (Google) <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Manuel Diewald <[email protected]>
Signed-off-by: Koichiro Den <[email protected]>

Author: mhiramat

lib/bootconfig.c

@@ -901,7 +901,8 @@ static int __init xbc_parse_tree(void)
 }
 
 /**
- * xbc_exit() - Clean up all parsed bootconfig
+ * _xbc_exit() - Clean up all parsed bootconfig
+ * @early: Set true if this is called before budy system is initialized.
  *
  * This clears all data structures of parsed bootconfig on memory.
  * If you need to reuse xbc_init() with new boot config, you can