linux-kernel - Re: [PATCH V2] [staging] bcm: Replace the BCM_DEBUG_* and BCM_SHOW

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Message-ID: <1338285973.2840.1.camel@edumazet-glaptop>
Date:	Tue, 29 May 2012 12:06:13 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Devendra Naga <devendra.aaru@...il.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Joe Perches <joe@...ches.com>, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] [staging] bcm: Replace the BCM_DEBUG_* and
 BCM_SHOW_* macros with functions

On Tue, 2012-05-29 at 15:21 +0530, Devendra Naga wrote:
> This patch is made by following the improvements told by Joe Perches,
> replaced the BCM_DEBUG* and BCM_SHOW* macros into functions and added them
> in a file and added macros in the Debug.h file. This patch also improves the if
> check in bcm_show_debug_bitmap,
> 
> the check was
> 	if ((i == 1) || (i == 2) || (i == 4) || (i == 8));
> anyway its a check to find whether its a power of two, and replaces
> it like the following,
> 	if ((i != 0) && !(i & (i - 1)))

So why not using is_power_of_2() ?


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