netdev - [PATCH bpf] bpf: samples/sockmap fix Makefile for build error

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Date:   Tue, 13 Feb 2018 13:42:49 +0900
From:   Prashant Bhole <bhole_prashant_q7@....ntt.co.jp>
To:     "David S . Miller" <davem@...emloft.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Cc:     Prashant Bhole <bhole_prashant_q7@....ntt.co.jp>,
        John Fastabend <john.fastabend@...il.com>,
        netdev@...r.kernel.org
Subject: [PATCH bpf] bpf: samples/sockmap fix Makefile for build error

While building samples/sockmap, undefined reference error is thrown
for `nla_dump_errormsg'.
Linking tools/lib/bpf/nlattr.o as a fix 

Signed-off-by: Prashant Bhole <bhole_prashant_q7@....ntt.co.jp>
---
 samples/sockmap/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/samples/sockmap/Makefile b/samples/sockmap/Makefile
index 73f1da4d116c..9bf2881bd11b 100644
--- a/samples/sockmap/Makefile
+++ b/samples/sockmap/Makefile
@@ -2,7 +2,7 @@
 hostprogs-y := sockmap
 
 # Libbpf dependencies
-LIBBPF := ../../tools/lib/bpf/bpf.o
+LIBBPF := ../../tools/lib/bpf/bpf.o ../../tools/lib/bpf/nlattr.o
 
 HOSTCFLAGS += -I$(objtree)/usr/include
 HOSTCFLAGS += -I$(srctree)/tools/lib/
-- 
2.13.6