linux-kernel - Re: [PATCH 1/2] printk: remove unused flag LOG

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Date:   Mon, 4 Jun 2018 17:33:42 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Petr Mladek <pmladek@...e.com>
Cc:     Maninder Singh <maninder1.s@...sung.com>,
        sergey.senozhatsky@...il.com, linux-kernel@...r.kernel.org,
        a.sahrawat@...sung.com, pankaj.m@...sung.com, v.narang@...sung.com
Subject: Re: [PATCH 1/2] printk: remove unused flag LOG_NOCONS

On Thu, 31 May 2018 14:16:33 +0200
Petr Mladek <pmladek@...e.com> wrote:

> >  enum log_flags {
> > -	LOG_NOCONS	= 1,	/* already flushed, do not print to console */
> > -	LOG_NEWLINE	= 2,	/* text ended with a newline */
> > -	LOG_PREFIX	= 4,	/* text started with a prefix */
> > -	LOG_CONT	= 8,	/* text is a fragment of a continuation line */
> > +	LOG_NEWLINE	= 1,	/* text ended with a newline */
> > +	LOG_PREFIX	= 2,	/* text started with a prefix */
> > +	LOG_CONT	= 4,	/* text is a fragment of a continuation line */
> >  };  
> 
> Please, do not renumber the bits if there is no real need for it.
> The format of the log buffer is read also by external tool like
> "crash". It seems that "crash" ignores these flags but...

Then what's the problem for renumbering? I've renumbered internal flags
before. No one complained about it.

-- Steve