um: Do not propagate noreboot parameter to kernel

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>
Link: https://patch.msgid.link/20241011040441.1586345-6-tiwei.btw@antgroup.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 2286486bb0f3783adb4708d2222e9aa60628374b..8b328eb9d1f783155d36cea5eabd1573b3a5070b 100644 (file)
--- 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;
 }