samples/bpf: add map_flags to bpf loader

note old loader is compatible with new kernel.
map_flags are optional

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/samples/bpf/libbpf.c b/samples/bpf/libbpf.c
index 65a8d48d2799..9969e35550c3 100644
--- a/samples/bpf/libbpf.c
+++ b/samples/bpf/libbpf.c
@@ -19,13 +19,14 @@ static __u64 ptr_to_u64(void *ptr)
 }
 
 int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size,
-                   int max_entries)
+                   int max_entries, int map_flags)
 {
         union bpf_attr attr = {
                 .map_type = map_type,
                 .key_size = key_size,
                 .value_size = value_size,
-                .max_entries = max_entries
+                .max_entries = max_entries,
+                .map_flags = map_flags,
         };
 
         return syscall(__NR_bpf, BPF_MAP_CREATE, &attr, sizeof(attr));