Re: [PATCH] kselftest: replace $(RM) with rm -f command

[Kees Cook]

On Tue, Sep 29, 2015 at 2:57 AM, Michael Ellerman <mpe@xxxxxxxxxxxxxx> wrote:
> On Mon, 2015-09-28 at 03:16 +0000, Mathieu Desnoyers wrote:
>> ----- On Sep 27, 2015, at 10:10 PM, Wang Long long.wanglong@xxxxxxxxxx wrote:
>>
>> > Some test's Makefile using "$(RM)" while the other's
>> > using "rm -f". It is better to use one of them in all
>> > tests.
>>
>> I agree that this disparity appears to be unwanted. We
>> should settle on one or the other.
>>
>> > "rm -f" is better, because it is less magic, and everyone
>> > konws what is does.
>>
>> "$(RM)" is clearly defined as a Makefile implicit variable
>> which defaults to "rm -f".
>> Ref. https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html
>
> Sure, but you had to look it up didn't you :) - I did.
>
>> Leaving it as a variable is more flexible because then the
>> default behavior can be overridden if need be, which is
>> not the case of a hardcoded "rm -f".
>
> But I don't think anyone actually wants to do that. Do they?
>
> Anyway I don't really care either way, so I'm happy for you to do a patch that
> uses $(RM). Or maybe Wang Long will be happy to respin his patch to use $(RM).

Yes, please. $(RM) is preferred, as that is the existing standard and
gives us flexibility.

-Kees

-- 
Kees Cook
Chrome OS Security
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