linux-kernel - Re: [PATCH v5] selftest: size: Add size test for Linux kernel

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Date:	Wed, 3 Dec 2014 08:13:14 -0800
From:	Tim Bird <tim.bird@...ymobile.com>
To:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Michael Ellerman <mpe@...erman.id.au>
CC:	Shuah Khan <shuahkh@....samsung.com>,
	"linux-api@...r.kernel.org" <linux-api@...r.kernel.org>,
	Josh Triplett <josh@...htriplett.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-embedded@...r.kernel.org" <linux-embedded@...r.kernel.org>
Subject: Re: [PATCH v5] selftest: size: Add size test for Linux kernel



On 12/03/2014 05:01 AM, Thomas Petazzoni wrote:
> Michael, Tim,
> 
> On Wed, 03 Dec 2014 14:43:11 +1100, Michael Ellerman wrote:
> 
>>> diff --git a/tools/testing/selftests/size/Makefile b/tools/testing/selftests/size/Makefile
>>> new file mode 100644
>>> index 0000000..47f8e9c
>>> --- /dev/null
>>> +++ b/tools/testing/selftests/size/Makefile
>>> @@ -0,0 +1,15 @@
>>> +#ifndef CC
>>> +	CC = $(CROSS_COMPILE)gcc
>>> +#endif
>>
>> I think the following is preferable:
>>
>>   CC := $(CROSS_COMPILE)$(CC)
> 
> It is even more necessary that #ifndef and #endif don't exist in make.
> They are just comments, and therefore, ignored. Seems like Tim does too
> much C :-)

OK - that's hilarious.  Saying 'Oops!' would be too casual for my degree of
embarrassment. :-)

Makefiles do have similar constructs.  Those should have been
ifeq ($(CC),)
	...
endif

This obviously got through via a failiure in testing - which is somewhat ironic.

Look for a v6 soon.  (Geez, when is the merge window coming.  I thought this trivial
program would get in pretty easily, but no... that's never the way.  Of course
it helps if the submitter is not an idiot.)
 -- Tim
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