From bec89724d5649fe889712d985a9f7aaa4eb112b8 Mon Sep 17 00:00:00 2001
From: Tanguy Pruvot <tanguy.pruvot@gmail.com>
Date: Thu, 22 Jan 2015 05:55:50 +0100
Subject: [PATCH] logs: prevent multiple warnings

---
 ccminer.cpp | 2 +-
 util.cpp    | 7 ++++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/ccminer.cpp b/ccminer.cpp
index b74e4d7..9a15de8 100644
--- a/ccminer.cpp
+++ b/ccminer.cpp
@@ -555,7 +555,7 @@ static int share_result(int result, const char *reason)
 			applog(LOG_WARNING, "factor reduced to : %0.2f", opt_difficulty);
 			return 0;
 		}
-		if (strncmp(reason, "Duplicate share", 15) == 0) {
+		if (strncmp(reason, "Duplicate share", 15) == 0 && !check_dups) {
 			applog(LOG_WARNING, "enabling duplicates check feature");
 			check_dups = true;
 		}
diff --git a/util.cpp b/util.cpp
index ef9dc0c..a2e576f 100644
--- a/util.cpp
+++ b/util.cpp
@@ -1287,9 +1287,10 @@ static bool stratum_set_difficulty(struct stratum_ctx *sctx, json_t *params)
 	pthread_mutex_unlock(&sctx->work_lock);
 
 	/* store for api stats */
-	global_diff = diff;
-
-	applog(LOG_WARNING, "Stratum difficulty set to %g", diff);
+	if (diff != global_diff) {
+		global_diff = diff;
+		applog(LOG_WARNING, "Stratum difficulty set to %g", diff);
+	}
 
 	return true;
 }