Subject: Re: case sensitivity for devicetree node names

From: Frank Rowand <[email-masked]>
Date: Sun, 12 Jun 2016 11:39:37 -0700

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.