linux-kernel - Re: [PATCH 8/8] selftests: x86: override clean in lib.mk to fix warnings

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Date:   Mon, 24 Apr 2017 13:48:41 -0600
From:   Shuah Khan <shuah@...nel.org>
To:     David Laight <David.Laight@...LAB.COM>,
        'Michael Ellerman' <mpe@...erman.id.au>,
        Shuah Khan <shuahkh@....samsung.com>,
        "bamvor.zhangjian@...aro.org" <bamvor.zhangjian@...aro.org>,
        "benh@...nel.crashing.org" <benh@...nel.crashing.org>,
        "paulus@...ba.org" <paulus@...ba.org>,
        "dvhart@...radead.org" <dvhart@...radead.org>
Cc:     "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>,
        "rkrcmar@...hat.com" <rkrcmar@...hat.com>,
        "dsafonov@...tuozzo.com" <dsafonov@...tuozzo.com>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "emilio.lopez@...labora.co.uk" <emilio.lopez@...labora.co.uk>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "viro@...iv.linux.org.uk" <viro@...iv.linux.org.uk>,
        "luto@...nel.org" <luto@...nel.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "mingo@...nel.org" <mingo@...nel.org>,
        Shuah Khan <shuah@...nel.org>
Subject: Re: [PATCH 8/8] selftests: x86: override clean in lib.mk to fix
 warnings

On 04/24/2017 09:57 AM, David Laight wrote:
> From: Linuxppc-dev Michael Ellerman
>> Shuah Khan <shuahkh@....samsung.com> writes:
>>
>>> Add override for lib.mk clean to fix the following warnings from clean
>>> target run.
>>>
>>> Makefile:44: warning: overriding recipe for target 'clean'
>>> ../lib.mk:55: warning: ignoring old recipe for target 'clean'
>>>
>>> Signed-off-by: Shuah Khan <shuahkh@....samsung.com>
>>> ---
>>>  tools/testing/selftests/x86/Makefile | 3 ++-
>>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile
>>> index 38e0a9c..4d27550 100644
>>> --- a/tools/testing/selftests/x86/Makefile
>>> +++ b/tools/testing/selftests/x86/Makefile
>>> @@ -40,8 +40,9 @@ all_32: $(BINARIES_32)
>>>
>>>  all_64: $(BINARIES_64)
>>>
>>> -clean:
>>> +override define CLEAN
>>>  	$(RM) $(BINARIES_32) $(BINARIES_64)
>>> +endef
>>
>> Simpler as:
>>
>> EXTRA_CLEAN := $(BINARIES_32) $(BINARIES_64)
> 
> Actually for builds that insist on crapping all over the source tree I've used:
> 
> clean:
> 	rm -rf `cat .cvsignore 2>/dev/null`
> 
> 	David

This will have to be done as a separate change. The warnings I am fixing
are related to common clean target in lib.mk and the need to override.

thanks,
-- Shuah