Re: [PATCH] init: Make unknown command line param message clearer

From: Randy Dunlap
Date: Tue Oct 12 2021 - 20:18:38 EST


On 10/12/21 5:01 PM, Steven Rostedt wrote:
On Tue, 12 Oct 2021 16:35:23 -0500
Andrew Halaney <ahalaney@xxxxxxxxxx> wrote:

--- a/init/main.c
+++ b/init/main.c
@@ -925,6 +925,10 @@ static void __init print_unknown_bootoptions(void)
for (p = &envp_init[2]; *p; p++)
end += sprintf(end, " %s", *p);
+ pr_notice("The kernel command line has unknown parameters. They are either\n");
+ pr_notice("misspelled, not valid for the current kernel configuration,\n");
+ pr_notice("or are meant for init but are not after the '--' delineator. They will\n");
+ pr_notice("be passed to init along with those after '--' on the command line.\n");
pr_notice("Unknown command line parameters:%s\n", unknown_options);
memblock_free(unknown_options, len);

What about just changing it to simply say:

pr_notice("Unknown kernel command line parameters "%s", will be passed to user space.\n",
unknown_options);


Yes, that's much more palatable.

thanks.
--
~Randy