linux-kernel - Re: [PATCH] printk: Pass caller information to log

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Date:   Thu, 21 Feb 2019 11:22:57 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:     Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Cc:     Dmitry Vyukov <dvyukov@...gle.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Petr Mladek <pmladek@...e.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] printk: Pass caller information to log_store().

On (02/16/19 19:59), Tetsuo Handa wrote:
>  /* insert record into the buffer, discard old ones, update heads */
> -static int log_store(int facility, int level,
> +static int log_store(u32 caller_id, int facility, int level,
>  		     enum log_flags flags, u64 ts_nsec,
>  		     const char *dict, u16 dict_len,
>  		     const char *text, u16 text_len)

I counted nine.

Dunno, we might want to just create a dummy struct and pass it
around, instead of doing

	vprintk_emit			(6 params)
	 vprintk_store			(6 params)
	  log_output			(7 params)
	   log_store			(9 params)

	-ss