From mboxrd@z Thu Jan 1 00:00:00 1970 From: Frank Rowand Subject: Re: case sensitivity for devicetree node names Date: Sun, 12 Jun 2016 11:39:37 -0700 Message-ID: <575DAC69.5010804@gmail.com> References: <575B1D84.2010703@gmail.com> <575C68A1.1020701@gmail.com> <1465682743.19533.18.camel@kernel.crashing.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1465682743.19533.18.camel-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org> Sender: devicetree-spec-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Benjamin Herrenschmidt Cc: Rob Herring , Grant Likely , David Gibson , "devicetree-spec-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Paul Mackerras , Michael Ellerman , linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org List-Id: devicetree@vger.kernel.org On 06/11/16 15:05, Benjamin Herrenschmidt wrote: > On Sat, 2016-06-11 at 12:38 -0700, Frank Rowand wrote: >> I chased through the history and found a 2.6.0-test5 announcement >> which noted the patch from you which adds: >> >> of_find_node_by_path() >> of_find_node_by_name() >> of_find_node_by_type() >> of_find_compatible_node() >> >> (And the patch is commit 394edd852a14 in the git recreation >> of bitkeeper days, which is found at >> git://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git) >> >> That version of the functions uses a case insensitive compare for >> devicetree node names. >> >> Do you remember why you chose to not use a case sensitive compare? > >>>From memory, there were inconsistency in case on various earlier > machines (notably old macs). I think that's the main reason. > > Cheers, > Ben. Is there a kernel config option (or a small set of config options) that would identify the affected machines? It would be ok if the option(s) also included some non-affected machines. That way we could use the case insensitive compare for a small set of machines.