linux-kernel - Re: [PATCH 20/26 v5] seq_buf: Add seq_buf_can

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Date:	Mon, 17 Nov 2014 16:07:33 -0800
From:	Joe Perches <joe@...ches.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Kosina <jkosina@...e.cz>, Petr Mladek <pmladek@...e.cz>
Subject: Re: [PATCH 20/26 v5] seq_buf: Add seq_buf_can_fit() helper function

On Mon, 2014-11-17 at 12:36 -0500, Steven Rostedt wrote:
> On Fri, 14 Nov 2014 23:59:07 -0500
> Steven Rostedt <rostedt@...dmis.org> wrote:
> 
> > From: "Steven Rostedt (Red Hat)" <rostedt@...dmis.org>
> > 
> > Add a seq_buf_can_fit() helper function that removes the possible mistakes
> > of comparing the seq_buf length plus added data compared to the size of
> > the buffer.
[]
> > +static bool seq_buf_can_fit(struct seq_buf *s, size_t len)
> > +{
> > +	return s->len + len < s->size;
> > +}
> > +

Why is this useful?

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