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Date:	Fri, 1 Apr 2016 00:21:39 +0530
From:	"Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
To:	Alexei Starovoitov <ast@...com>
Cc:	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	"David S . Miller" <davem@...emloft.net>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Daniel Borkmann <daniel@...earbox.net>, netdev@...r.kernel.org
Subject: Re: [PATCH 3/4] samples/bpf: Simplify building BPF samples

On 2016/03/31 10:49AM, Alexei Starovoitov wrote:
> On 3/31/16 4:25 AM, Naveen N. Rao wrote:
> >Make BPF samples build depend on CONFIG_SAMPLE_BPF. We still don't add a
> >Kconfig option since that will add a dependency on llvm for allyesconfig
> >builds which may not be desirable.
> >
> >Those who need to build the BPF samples can now just do:
> >
> >make CONFIG_SAMPLE_BPF=y
> >
> >or:
> >
> >export CONFIG_SAMPLE_BPF=y
> >make
> 
> I don't like this 'simplification'.
> make samples/bpf/
> is much easier to type than capital letters.

This started out as a patch to have the BPF samples built with a Kconfig 
option. As stated in the commit description, I realised that it won't 
work for allyesconfig builds. However, the reason I retained this patch 
is since it gets us one step closer to building the samples as part of 
the kernel build.

The 'simplification' is since I can now have the export in my .bashrc 
and the kernel build will now build the BPF samples too without 
requiring an additional 'make samples/bpf/' step.

I agree this is subjective, so I am ok if this isn't taken in.


- Naveen

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