From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from perceval.ideasonboard.com ([95.142.166.194]:40092 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751807AbaBJP2a (ORCPT ); Mon, 10 Feb 2014 10:28:30 -0500 From: Laurent Pinchart To: Paul Bolle Cc: Mauro Carvalho Chehab , Greg Kroah-Hartman , linux-media@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] [media] v4l: omap4iss: Remove VIDEO_OMAP4_DEBUG Date: Mon, 10 Feb 2014 16:29:31 +0100 Message-ID: <1409428.L7JLLEda5C@avalon> In-Reply-To: <1392045231.3585.33.camel@x220> References: <1391958577.25424.22.camel@x220> <3300576.MqDnfacnEA@avalon> <1392045231.3585.33.camel@x220> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-media-owner@vger.kernel.org List-ID: Hi Paul, On Monday 10 February 2014 16:13:51 Paul Bolle wrote: > On Mon, 2014-02-10 at 15:13 +0100, Laurent Pinchart wrote: > > On Sunday 09 February 2014 16:09:37 Paul Bolle wrote: > > > Commit d632dfefd36f ("[media] v4l: omap4iss: Add support for OMAP4 > > > camera interface - Build system") added a Kconfig entry for > > > VIDEO_OMAP4_DEBUG. But nothing uses that symbol. > > > > > > This entry was apparently copied from a similar entry for "OMAP 3 > > > Camera debug messages". But a corresponding Makefile line is missing. > > > Besides, the debug code also depends on a mysterious ISS_ISR_DEBUG > > > macro. This Kconfig entry can be removed. > > > > What about adding the associated Makefile line instead to #define DEBUG > > when VIDEO_OMAP4_DEBUG is selected, as with the OMAP3 ISP driver ? > > > > > Someone familiar with the code might be able to say what to do with the > > > code depending on the DEBUG and ISS_ISR_DEBUG macros. > > > > ISS_ISR_DEBUG is expected to be set by manually modifying the source code, > > as it prints lots of messages in interrupt context. > > Which renders the DEBUG macro pointless. Or does the code use some > dev_dbg()-like magic, which is only triggered if the DEBUG macro is set? Yes, dev_dbg() is used. -- Regards, Laurent Pinchart