netdev - Re: [PATCH v2 bpf-next] selftests/bpf : clean up feature/ when make clean

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Date:   Tue, 11 Jun 2019 10:54:32 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Hechao Li <hechaol@...com>, bpf@...r.kernel.org
Cc:     netdev@...r.kernel.org, ast@...nel.org, kernel-team@...com
Subject: Re: [PATCH v2 bpf-next] selftests/bpf : clean up feature/ when make
 clean

On 06/11/2019 02:43 AM, Hechao Li wrote:
> An error "implicit declaration of function 'reallocarray'" can be thrown
> with the following steps:
> 
> $ cd tools/testing/selftests/bpf
> $ make clean && make CC=<Path to GCC 4.8.5>
> $ make clean && make CC=<Path to GCC 7.x>
> 
> The cause is that the feature folder generated by GCC 4.8.5 is not
> removed, leaving feature-reallocarray being 1, which causes reallocarray
> not defined when re-compliing with GCC 7.x. This diff adds feature
> folder to EXTRA_CLEAN to avoid this problem.
> 
> v2: Rephrase the commit message.
> 
> Signed-off-by: Hechao Li <hechaol@...com>
> Acked-by: Andrii Nakryiko <andriin@...com>

Applied, thanks!