linux-kernel - Re: [RFC][WAS:bcmai][PATCH V2] axi: add AXI bus driver

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Date:	Fri, 08 Apr 2011 12:55:54 -0700
From:	Joe Perches <joe@...ches.com>
To:	Rafał Miłecki <zajec5@...il.com>
Cc:	linux-wireless@...r.kernel.org,
	"John W. Linville" <linville@...driver.com>,
	George Kashperko <george@...u.edu.ua>,
	Arnd Bergmann <arnd@...db.de>,
	Russell King <rmk@....linux.org.uk>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	b43-dev@...ts.infradead.org,
	Michael Büsch <mb@...sch.de>,
	linuxdriverproject <devel@...uxdriverproject.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Larry Finger <Larry.Finger@...inger.net>
Subject: Re: [RFC][WAS:bcmai][PATCH V2] axi: add AXI bus driver

On Fri, 2011-04-08 at 21:46 +0200, Rafał Miłecki wrote:
> 2011/4/8 Joe Perches <joe@...ches.com>:
> > On Fri, 2011-04-08 at 21:45 +0200, Rafał Miłecki wrote:
> >> diff --git a/include/linux/axi/axi.h b/include/linux/axi/axi.h
> > []
> >> +#define axi_info     pr_info
> >> +#ifdef CONFIG_AXI_DEBUG
> >> +#define axi_debug    pr_debug
> >> +#else
> >> +#define axi_debug    do { } while (0)
> >> +#endif
> >> +#define axi_err              pr_err
> >
> > I think redefining standard functionality like
> > this doesn't gain anything and loses some basic
> > grep capability.
> 
> But on the other hand using:
> pr_info, pr_err, BUT axi_debug
> can easily lead to mistakes.
> 
> Or is this possible to re-define pr_debug locally?

It is, but is that CONFIG_AXI_DEBUG actually
worthwhile?

If you think so, doesn't adding this to the Makefile
give you the same capability?

ccflags-$(CONFIG_CONFIG_AXI_DEBUG) := -DDEBUG


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