From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 18 Jan 2016 19:22:45 +0000 (+0100)
Subject: resolved: minor optimization for dns_question_is_equal()
X-Git-Tag: v229~128^2~13
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b6800689e03456efd0430d171ebf962f64b94eb0;p=thirdparty%2Fsystemd.git

resolved: minor optimization for dns_question_is_equal()

If the poinetrs are equal, we don't have to do a deep comparison.

This is similar to a similar optimization we already have in place for RRs and keys.
---

diff --git a/src/resolve/resolved-dns-question.c b/src/resolve/resolved-dns-question.c
index d3a6c14ed1d..938b43f2250 100644
--- a/src/resolve/resolved-dns-question.c
+++ b/src/resolve/resolved-dns-question.c
@@ -183,6 +183,9 @@ int dns_question_is_equal(DnsQuestion *a, DnsQuestion *b) {
         unsigned j;
         int r;
 
+        if (a == b)
+                return 1;
+
         if (!a)
                 return !b || b->n_keys == 0;
         if (!b)