[6.0] 264d0d934 New take on #2624 after Martin's RxStuff overflow fixes

[Dridi Boukelmoune]

commit 264d0d934241ce33837ac6c7c76ecb2107b830f9
Author: Dag Haavi Finstad <daghf at varnish-software.com>
Date:   Tue Jun 12 11:28:59 2018 +0200

    New take on #2624 after Martin's RxStuff overflow fixes

diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c
index 64d55a6f9..c43a65f96 100644
--- a/bin/varnishd/http2/cache_http2_proto.c
+++ b/bin/varnishd/http2/cache_http2_proto.c
@@ -882,8 +882,6 @@ h2_frame_complete(struct http_conn *htc)
 	u = vbe32dec(htc->rxbuf_b) >> 8;
 	if (l >= u + 9)
 		return (HTC_S_COMPLETE);
-	else if (l > h2->local_settings.max_frame_size + 9)
-		return (HTC_S_OVERFLOW);
 
 	return (HTC_S_MORE);
 }
@@ -1068,7 +1066,7 @@ h2_rxframe(struct worker *wrk, struct h2_sess *h2)
 	hs = HTC_RxStuff(h2->htc, h2_frame_complete,
 	    NULL, NULL, NAN,
 	    h2->sess->t_idle + cache_param->timeout_idle,
-	    16384 + 9);		// rfc7540,l,4228,4228
+	    h2->local_settings.max_frame_size + 9);
 	switch (hs) {
 	case HTC_S_COMPLETE:
 		break;