linux-kernel - [PATCH 5/9] um: Do not propagate noreboot parameter to kernel

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Message-Id: <20241011040441.1586345-6-tiwei.btw@antgroup.com>
Date: Fri, 11 Oct 2024 12:04:37 +0800
From: "Tiwei Bie" <tiwei.btw@...group.com>
To: richard@....at,
	anton.ivanov@...bridgegreys.com,
	johannes@...solutions.net
Cc:  <linux-um@...ts.infradead.org>,
   <linux-kernel@...r.kernel.org>,
  "Tiwei Bie" <tiwei.btw@...group.com>
Subject: [PATCH 5/9] 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@...group.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