linux-kernel - Re: [PATCH] printk: Remove no longer used LOG

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Date:   Mon, 4 Mar 2019 13:54:37 +0100
From:   Petr Mladek <pmladek@...e.com>
To:     Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Cc:     Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] printk: Remove no longer used LOG_PREFIX.

On Mon 2019-03-04 11:22:29, Sergey Senozhatsky wrote:
> On (02/22/19 18:59), Tetsuo Handa wrote:
> > When commit 5becfb1df5ac8e49 ("kmsg: merge continuation records while
> > printing") introduced LOG_PREFIX, we used KERN_DEFAULT etc. as a flag
> > for setting LOG_PREFIX in order to tell whether to call cont_add()
> > (i.e. whether to append the message to "struct cont").
> > 
> > But since commit 4bcc595ccd80decb ("printk: reinstate KERN_CONT for
> > printing continuation lines") inverted the behavior (i.e. don't append
> > the message to "struct cont" unless KERN_CONT is specified) and commit
> > 5aa068ea4082b39e ("printk: remove games with previous record flags")
> > removed the last LOG_PREFIX check, setting LOG_PREFIX via KERN_DEFAULT
> > etc. is no longer meaningful.
> > 
> > Therefore, we can remove LOG_PREFIX and make KERN_DEFAULT empty string.
> > 
> > Signed-off-by: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
> 
> Looks good to me. Well, at least I don't see any problems with the patch.
> We can do a tree-wide KERN_DEFAULT removal later.

Yup.

> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>

With a fresh head after the weekend, the patch looks fine and
pretty safe to me.

I have pushed it into for-5.1 branch.

Best Regards,
Petr