linux-kernel - Re: [RFC][PATCH 10/12 v3] seq-buf: Make seq_buf_bprintf() conditional on CONFIG_BINARY

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Message-ID: <20141105170605.GL4570@pathway.suse.cz>
Date:	Wed, 5 Nov 2014 18:06:05 +0100
From:	Petr Mladek <pmladek@...e.cz>
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>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [RFC][PATCH 10/12 v3] seq-buf: Make seq_buf_bprintf()
 conditional on CONFIG_BINARY_PRINTF

On Tue 2014-11-04 10:52:47, Steven Rostedt wrote:
> From: "Steven Rostedt (Red Hat)" <rostedt@...dmis.org>
> 
> The function bstr_printf() from lib/vsprnintf.c is only available if
> CONFIG_BINARY_PRINTF is defined. This is due to the only user currently
> being the tracing infrastructure, which needs to select this config
> when tracing is configured. Until there is another user of the binary
> printf formats, this will continue to be the case.
> 
> Since seq_buf.c is now lives in lib/ and is compiled even without
> tracing, it must encompass its use of bstr_printf() which is used
> by seq_buf_printf(). This too is only used by the tracing infrastructure
> and is still encapsulated by the CONFIG_BINARY_PRINTF.
> 
> Signed-off-by: Steven Rostedt <rostedt@...dmis.org>

Please switch the order and do this change before moving to lib/.
IMHO, the current order would break bisecting when tracing is
disabled.

Otherwise, the change looks good in itself, so:

Reviewed-by: Petr Mladek <pmladek@...e.cz>

Best Regards,
Petr
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