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

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Message-ID: <20211012202250.54a8db49@gandalf.local.home>
Date:   Tue, 12 Oct 2021 20:22:50 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     Andrew Halaney <ahalaney@...hat.com>, akpm@...ux-foundation.org,
        bp@...e.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] init: Make unknown command line param message clearer

On Tue, 12 Oct 2021 17:18:32 -0700
Randy Dunlap <rdunlap@...radead.org> wrote:

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

Andrew (Halaney, not Morton),

Feel free to send a v2 with the above text, and just add:

Suggested-by: Steven Rostedt (VMware) <rostedt@...dmis.org>

-- Steve