lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 5 Mar 2014 20:45:29 -0800 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: Laurent Pinchart <laurent.pinchart@...asonboard.com> Cc: Joe Perches <joe@...ches.com>, devel@...verdev.osuosl.org, Paul Bolle <pebolle@...cali.nl>, linux-kernel@...r.kernel.org, Mauro Carvalho Chehab <m.chehab@...sung.com>, linux-media@...r.kernel.org Subject: Re: [PATCH v2] [media] v4l: omap4iss: Add DEBUG compiler flag On Thu, Mar 06, 2014 at 01:48:29AM +0100, Laurent Pinchart wrote: > Hi Joe, > > On Wednesday 05 March 2014 16:28:03 Joe Perches wrote: > > On Thu, 2014-03-06 at 00:50 +0100, Laurent Pinchart wrote: > > > Please note that -DDEBUG is equivalent to '#define DEBUG', not to '#define > > > CONFIG_DEBUG'. 'DEBUG' needs to be defined for dev_dbg() to have any > > > effect. > > > > Not quite. If CONFIG_DYNAMIC_DEBUG is set, these > > dev_dbg statements are compiled in but not by default > > set to emit output. Output can be enabled by using > > dynamic_debug controls like: > > > > # echo -n 'file omap4iss/* +p' > <debugfs>/dynamic_debug/control > > > > See Documentation/dynamic-debug-howto.txt for more details. > > Thank you for the additional information. > > Would you recommend to drop driver-specific Kconfig options related to > debugging and use CONFIG_DYNAMIC_DEBUG instead ? Yes, please do that, no one wants to rebuild drivers and subsystems with different options just for debugging. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists