linux-kernel - Re: [RFC PATCH 1/2] scripts/kconfig/Makefile: Allow KBUILD

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Date:	Fri, 25 Sep 2015 22:46:38 +0200
From:	Michal Marek <mmarek@...e.com>
To:	Michael Ellerman <michael@...erman.id.au>,
	Michael Ellerman <mpe@...erman.id.au>, linuxppc-dev@...abs.org
Cc:	linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
	yann.morin.1998@...e.fr
Subject: Re: [RFC PATCH 1/2] scripts/kconfig/Makefile: Allow KBUILD_DEFCONFIG
 to be a target

Dne 24.9.2015 v 00:16 Michael Ellerman napsal(a):
> 
> 
> On 23 September 2015 19:50:52 GMT+10:00, Michal Marek
> <mmarek@...e.com> wrote:
>> On 2015-09-23 07:40, Michael Ellerman wrote:
>>> +else ifneq ($(wildcard
>> arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
>>> @$(kecho) "*** Default configuration is based on
>> '$(KBUILD_DEFCONFIG)'"
>>> $(Q)$< $(silent)
>> --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
>>> +else +	@$(kecho) "*** Default configuration is based on target
>> '$(KBUILD_DEFCONFIG)'"
>>> +	$(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG) endif
>> 
>> What is the anticipated usage of this? The patch is not needed to
>> make
>> 
>> make ppc64le_defconfig
>> 
>> work with the second patch. If it was, this would create a loop
>> anyway.
> 
> The idea is to make 'make defconfig' work when KBUILD_DEFCONFIG is
> ppc64le_defconfig (which happens for us when uname returns ppc64le)
> and additionally when ppc64le_defconfig is not a real file.

Ah, that makes sense. You can add

Acked-by: Michal Marek <mmarek@...e.com>

if you want.

Michal
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