[OE-core] [PATCH] linux-yocto-custom: Clarify defconfig usage

[Andrea Adami]

On Wed, Oct 3, 2012 at 6:38 AM, Bruce Ashfield
<bruce.ashfield at windriver.com> wrote:
> On 12-10-03 12:36 AM, Darren Hart wrote:
>>
>> It is necessary to supply file://defconfig to the SRC_URI when using
>> a defconfig (it is not implicitly understood as the commentary might
>> currently suggest).
>
>
> Acked-by: Bruce Ashfield <bruce.ashfield at windriver.com>
>
>
>>
>> Signed-off-by: Darren Hart<dvhart at linux.intel.com>
>> CC: Bruce Ashfield<bruce.ashfield at windriver.com>
>> ---
>>   meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb | 3 ++-
>>   1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb
>> b/meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb
>> index 1f0b3a2..4115d2f 100644
>> --- a/meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb
>> +++ b/meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb
>> @@ -13,7 +13,8 @@
>>   #
>>   #   You must also provide a Linux kernel configuration. The most direct
>>   #   method is to copy your .config to files/defconfig in your layer,
>> -#   in the same directory as the bbappend.
>> +#   in the same directory as the bbappend and add file://defconfig to
>> +#   your SRC_URI.
>>   #
>>   #   To use the yocto kernel tooling to generate a BSP configuration
>>   #   using modular configuration fragments, see the yocto-bsp and
>
>
>
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Great, this example can be very useful to create custom kernel recipes.

Just one thing, the comments on the top suggest to set
#     COMPATIBLE_MACHINE_yourmachine = "yourmachine"

but at the end there is
COMPATIBLE_MACHINE = "(^$)"

Now, the latter form is what I'm used to see.

Which kind of advantages using COMPATIBLE_MACHINE_yourmachine ? In
that way you don't mask the recipe for other machines...so I don't see
the purpose and I think should be discouraged. Thus, I'd amend the
example in the comment.

My 2 cents

Andrea