trafgen: proto: Mark fields parameter to proto_header_fields_add as const

It's not changed inside the function, so mark it as const. Also adjust
the header guards.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 2 insertions, 2 deletions

diff --git a/trafgen_proto.c b/trafgen_proto.c
index 5fcb5cc..3cbf34e 100644
--- a/trafgen_proto.c
+++ b/trafgen_proto.c
@@ -86,8 +86,8 @@ static void proto_fields_realloc(struct proto_hdr *hdr, size_t count)
 	hdr->fields_count = count;
 }
 
-void proto_header_fields_add(struct proto_hdr *hdr, struct proto_field *fields,
-			     size_t count)
+void proto_header_fields_add(struct proto_hdr *hdr,
+			     const struct proto_field *fields, size_t count)
 {
 	struct packet *pkt = current_packet();
 	struct proto_field *f;