tree 94408914e03cc326e3e8764a71c72ce6a1259d43
parent 1c97566d515de2ef66873e30288b150f0154f3b3
author Jesper Dangaard Brouer <brouer@redhat.com> 1461846069 +0200
committer David S. Miller <davem@davemloft.net> 1461954333 -0400

samples/bpf: allow make to be run from samples/bpf/ directory

It is not intuitive that 'make' must be run from the top level
directory with argument "samples/bpf/" to compile these eBPF samples.

Introduce a kbuild make file trick that allow make to be run from the
"samples/bpf/" directory itself.  It basically change to the top level
directory and call "make samples/bpf/" with the "/" slash after the
directory name.

Also add a clean target that only cleans this directory, by taking
advantage of the kbuild external module setting M=$PWD.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>