From af0e8d834e4b1da029f7505745225f848e96def6 Mon Sep 17 00:00:00 2001
From: Roger Dingledine <arma@torproject.org>
Date: Sat, 21 May 2011 19:23:27 -0400
Subject: don't mark our descriptor dirty if our onion key hasn't changed

---
 src/or/router.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/or/router.c')

diff --git a/src/or/router.c b/src/or/router.c
index 184715b750..f6728aac91 100644
--- a/src/or/router.c
+++ b/src/or/router.c
@@ -82,6 +82,11 @@ static authority_cert_t *legacy_key_certificate = NULL;
 static void
 set_onion_key(crypto_pk_env_t *k)
 {
+  if (onionkey && !crypto_pk_cmp_keys(onionkey, k)) {
+    /* k is already our onion key; free it and return */
+    crypto_free_pk_env(k);
+    return;
+  }
   tor_mutex_acquire(key_lock);
   crypto_free_pk_env(onionkey);
   onionkey = k;
-- 
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