From mboxrd@z Thu Jan 1 00:00:00 1970 From: pali.rohar@gmail.com (Pali =?utf-8?q?Roh=C3=A1r?=) Date: Wed, 26 Nov 2014 19:57:08 +0100 Subject: [PATCH] ARM: OMAP2+: Warn about deprecated legacy booting mode In-Reply-To: <20141126181934.GL2817@atomide.com> References: <20141027200008.GR2560@atomide.com> <20141126172857.GA26157@amd> <20141126181934.GL2817@atomide.com> Message-ID: <201411261957.08860@pali> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wednesday 26 November 2014 19:19:35 Tony Lindgren wrote: > * Pavel Machek [141126 09:31]: > > On Tue 2014-10-28 01:01:38, Aaro Koskinen wrote: > > > Hi, > > > > > > On Mon, Oct 27, 2014 at 01:00:09PM -0700, Tony Lindgren wrote: > > > > + > > > > + if (!of_have_populated_dt()) > > > > + pr_warn("WARNING: legacy booting deprecated, please > > > > update to boot with .dts\n"); + > > > > > > Maybe use WARN so that the warning is more verbose and > > > kernel gets tainted? > > > > Well.. Pali still has regression where /proc/cpuinfo changes > > in a way that breaks existing userspace, when dt is used on > > N900. > > > > And rmk was less then helpfull... > > Maybe Pali can try to restart that discussion? To me it seems > the /proc/cpuinfo should be the same as it's a user > interface. Sorry forgot the details of the previous > discussion.. > Yes, two days ago I again wrote emails about this problem... E.g. one of them, see: https://lkml.org/lkml/2014/11/24/774 > And with which app was that? Sorry I forgot.. > More applications/libraries for N900 which running on Maemo 5 system. Some of them are Nokia proprietary, some of them are open source and some are mine. Basically problem is that non DT boot provides this info in /proc/cpuinfo: Hardware : Nokia RX-51 board Revision : 0012 New DT boot provides this: Hardware : Generic OMAP3 (Flattened Device Tree) Revision : 0000 > It's weird that it's not been an issue for other though? > > > Should we maybe solve that before adding backtraces to our > > boot messages? > > With this warning we want to notify the people actually using > mainline kernel on omap3 that they should update their > systems. And also let us know on this list about the > regressions, so I think that's quite valuable. > > Regards, > > Tony -- Pali Roh?r pali.rohar at gmail.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 198 bytes Desc: This is a digitally signed message part. URL: