This parameter is UML specific and is unknown to kernel. It should not
be propagated to kernel, otherwise it could be passed to user space as
a command line option by kernel with a warning like:

Unknown kernel command line parameters "noreboot", will be passed to user space.

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
---
 arch/um/os-Linux/skas/process.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 2286486bb0f3..8b328eb9d1f7 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -622,6 +622,7 @@ static bool noreboot;
 
 static int __init noreboot_cmd_param(char *str, int *add)
 {
+	*add = 0;
 	noreboot = true;
 	return 0;
 }
-- 
2.34.1