Constify

bin/varnishd/http2/cache_http2.h

@@ -223,8 +223,8 @@ void H2_Send_Frame(struct worker *, struct h2_sess *,
     h2_frame type, uint8_t flags, uint32_t len, uint32_t stream,
     const void *);
 
-void H2_Send_RST(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2,
-    uint32_t stream, h2_error h2e);
+void H2_Send_RST(struct worker *wrk, struct h2_sess *h2,
+    const struct h2_req *r2, uint32_t stream, h2_error h2e);
 
 void H2_Send(struct worker *, struct h2_req *, h2_frame type, uint8_t flags,
     uint32_t len, const void *, uint64_t *acct);

bin/varnishd/http2/cache_http2_send.c

@@ -392,7 +392,7 @@ h2_send(struct worker *wrk, struct h2_req *r2, h2_frame ftyp, uint8_t flags,
 }
 
 void
-H2_Send_RST(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2,
+H2_Send_RST(struct worker *wrk, struct h2_sess *h2, const struct h2_req *r2,
     uint32_t stream, h2_error h2e)
 {
 	char b[4];