[meta-intel] Use of overrides in linux-yocto bbappends

[Darren Hart]

On 4/11/14, 9:08, "Kamble, Nitin A" <nitin.a.kamble at intel.com> wrote:

>> -----Original Message-----
>> From: Darren Hart [mailto:dvhart at linux.intel.com]
>> Sent: Friday, April 11, 2014 8:49 AM
>> To: Paul Eggleton; meta-intel at yoctoproject.org
>> Cc: Kamble, Nitin A
>> Subject: Re: Use of overrides in linux-yocto bbappends
>> 
>> On 4/11/14, 8:37, "Paul Eggleton" <paul.eggleton at linux.intel.com> wrote:
>> 
>> >Hi folks,
>> >
>> >Koen reported that with a recent change to meta-minnow where
>> >LINUX_VERSION = "something" changed to LINUX_VERSION_minnow =
>> >"something" (which was a good change), the result was that the version
>> >of the linux-yocto kernel packages for an unrelated machine in another
>> >layer went backwards, because the value that was previously leaking
>> >over into that machine's kernel recipe wasn't anymore.
>> >
>> >This in itself is OK, since the change was to make the append set the
>> >variable correctly. However it prompted me to look through meta-intel
>> >to see how we're setting LINUX_VERSION. I see there are a number of
>> >bbappends for
>> >linux-yocto*
>> >recipes that set LINUX_VERSION with no machine override; we need to
>> >stop doing this. I can throw together a patch to fix it, but we'll also
>> >need to make sure new BSPs added in future use overrides as well. Any
>> >suggestions on how to handle the latter? Is this a documentation issue?
>> 
>> I've already asked Nitin to make this change across meta-intel and have
>> corrected patches that have been coming in without the MACHINE override.
>> So yes, we're on it.
>
>As of now, there is no such issue in meta-intel layer. All the
>LINUX_VERSION
>Variables got overrides recently.

In master. We should probably also update dora since that is where Koen
would have seen the fallout.

>
>> 
>> I suppose this should be added to the linux kernel development manual.
>> 
>Right.
>
>Scott, can you check if any of the manuals mention LINUX_VERSION
>without overrides such as LINUX_VERSION_minnow. If there is any that
>need to be changed.
>  I am noticing that the reference manual, and BSP guide both need this
>change.
>
>Bruce,
>  This file should change too:
>   meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb

Could catch.

-- 
Darren Hart					Open Source Technology Center
darren.hart at intel.com				            Intel Corporation