netdev - [PATCH net-next v3 2/2] libbpf: use map

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Message-Id: <20171005144158.14860-3-kraigatgoog@gmail.com>
Date:   Thu,  5 Oct 2017 10:41:58 -0400
From:   Craig Gallek <kraigatgoog@...il.com>
To:     Alexei Starovoitov <ast@...com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        "David S . Miller" <davem@...emloft.net>
Cc:     Chonggang Li <chonggangli@...gle.com>, netdev@...r.kernel.org
Subject: [PATCH net-next v3 2/2] libbpf: use map_flags when creating maps

From: Craig Gallek <kraig@...gle.com>

This is required to use BPF_MAP_TYPE_LPM_TRIE or any other map type
which requires flags.

Signed-off-by: Craig Gallek <kraig@...gle.com>
---
 tools/lib/bpf/libbpf.c | 2 +-
 tools/lib/bpf/libbpf.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 23152890ec60..5aa45f89da93 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -942,7 +942,7 @@ bpf_object__create_maps(struct bpf_object *obj)
 					   def->key_size,
 					   def->value_size,
 					   def->max_entries,
-					   0);
+					   def->map_flags);
 		if (*pfd < 0) {
 			size_t j;
 			int err = *pfd;
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index 7959086eb9c9..6e20003109e0 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -207,6 +207,7 @@ struct bpf_map_def {
 	unsigned int key_size;
 	unsigned int value_size;
 	unsigned int max_entries;
+	unsigned int map_flags;
 };
 
 /*
-- 
2.14.2.920.gcf0c67979c-goog