linux-kernel - Re: [PATCH] seq_file: Fix seq_putc() to be consistent with seq

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Message-ID: <20140929164155.GI7996@ZenIV.linux.org.uk>
Date:	Mon, 29 Sep 2014 17:41:55 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Petr Mladek <pmladek@...e.cz>, LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] seq_file: Fix seq_putc() to be consistent with seq_puts()

On Mon, Sep 29, 2014 at 12:09:27PM -0400, Steven Rostedt wrote:

> Note, I'm trying to make a seq_buf.c file that consolidates the code in
> trace_seq.c and seq_file.c. This will extend slightly the use cases of
> the seq_buf functions, but I think all the seq_*() functions from
> seq_file.c can be turned into functions that return void.

Umm...  seq_path() and friends might want to return real errors.
And seq_path_root() needs to be able to return SEQ_SKIP.
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