From 72777f1f38c71ea7efdf54676d4385f408d942fa Mon Sep 17 00:00:00 2001
From: Con Kolivas <kernel@kolivas.org>
Date: Thu, 5 Jul 2012 09:30:53 +1000
Subject: [PATCH] Disable nonce range support in BFL when broken support is
 detected.

---
 driver-bitforce.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/driver-bitforce.c b/driver-bitforce.c
index 04afc057..f67bdcc1 100644
--- a/driver-bitforce.c
+++ b/driver-bitforce.c
@@ -390,6 +390,12 @@ static uint64_t bitforce_get_result(struct thr_info *thr, struct work *work)
 #ifndef __BIG_ENDIAN__
 		nonce = swab32(nonce);
 #endif
+		if (unlikely(bitforce->nonce_range && (nonce >= work->blk.nonce ||
+			(work->blk.nonce > 0 && nonce < work->blk.nonce - bitforce->nonces - 1)))) {
+				applog(LOG_DEBUG, "BFL%i: Disabling broken nonce range support", bitforce->device_id);
+				bitforce->nonce_range = false;
+		}
+			
 		submit_nonce(thr, work, nonce);
 		if (pnoncebuf[8] != ',')
 			break;