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Date:   Mon, 20 Jul 2020 17:34:20 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To:     Marco Elver <elver@google.com>
Cc:     Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        John Ogness <john.ogness@linutronix.de>,
        Petr Mladek <pmladek@suse.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Andrea Parri <parri.andrea@gmail.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Paul McKenney <paulmck@kernel.org>, kexec@lists.infradead.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5 4/4] printk: use the lockless ringbuffer
Message-ID: <20200720083420.GB463@jagdpanzerIV.localdomain>
References: <20200709132344.760-1-john.ogness@linutronix.de>
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 <20200719034312.GA566736@jagdpanzerIV.localdomain>
 <20200720064303.GA2144711@elver.google.com>
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On (20/07/20 08:43), Marco Elver wrote:
[..]
> please see a full list of newline-print users below.
[..]
> $> git grep -En '\<(printk|pr_err|pr_warn|pr_info)\>\("\\n"\)'
> arch/alpha/kernel/core_wildfire.c:650:	printk("\n");
> arch/alpha/kernel/core_wildfire.c:658:	printk("\n");
> arch/alpha/kernel/traps.c:120:	printk("\n");
[..]

In many cases printk("\n") is not for "print a blank line", but
rather for "flush pr_cont buffer".

	-ss