linux-kernel - Re: [PATCH v2] printk: make sure to print log on console.

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Date:   Mon, 18 Jun 2018 15:23:06 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:     Maninder Singh <maninder1.s@...sung.com>, pmladek@...e.com
Cc:     sergey.senozhatsky@...il.com, rostedt@...dmis.org,
        linux-kernel@...r.kernel.org, a.sahrawat@...sung.com,
        pankaj.m@...sung.com, v.narang@...sung.com,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Subject: Re: [PATCH v2] printk: make sure to print log on console.

On (06/18/18 15:15), Sergey Senozhatsky wrote:
> 
> On (06/01/18 14:26), Maninder Singh wrote:
> >
> > Signed-off-by: Vaneet Narang <v.narang@...sung.com>
> > Signed-off-by: Maninder Singh <maninder1.s@...sung.com>
> 
> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>

OK, we probably need v3 after all.

I think this

-               if (suppress_message_printing(msg->level)) {
+               if (msg->flags & LOG_NOCONS) {

must be changed to

-               if (suppress_message_printing(msg->level)) {
+               if (!ignore_loglevel && (msg->flags & LOG_NOCONS)) {


`ignore_loglevel' is a module param and can change any time via
	/sys/module/printk/parameters/ignore_loglevel
we need to respect its value.

	-ss