Convert the bitfury driver to use the hash_driver_work version of hash_work.

cgminer.c

@@ -5974,7 +5974,7 @@ static void gen_stratum_work(struct pool *pool, struct work *work)
 	cgtime(&work->tv_staged);
 }
 
-static struct work *get_work(struct thr_info *thr, const int thr_id)
+struct work *get_work(struct thr_info *thr, const int thr_id)
 {
 	struct work *work = NULL;
 

driver-bitfury.c

@@ -220,18 +220,24 @@ static bool bitfury_checkresults(struct thr_info *thr, struct work *work, uint32
 	return false;
 }
 
-static int64_t bitfury_scanhash(struct thr_info *thr, struct work *work,
-				int64_t __maybe_unused max_nonce)
+static int64_t bitfury_scanwork(struct thr_info *thr)
 {
 	struct cgpu_info *bitfury = thr->cgpu;
 	struct bitfury_info *info = bitfury->device_data;
 	struct timeval tv_now;
+	struct work *work;
 	double nonce_rate;
 	int64_t ret = 0;
 	int amount, i;
 	char buf[45];
 	int ms_diff;
 
+	work = get_work(thr, thr->id);
+	if (unlikely(thr->work_restart)) {
+		free_work(work);
+		return 0;
+	}
+
 	buf[0] = 'W';
 	memcpy(buf + 1, work->midstate, 32);
 	memcpy(buf + 33, work->data + 64, 12);
@@ -298,8 +304,7 @@ static int64_t bitfury_scanhash(struct thr_info *thr, struct work *work,
 cascade:
 	for (i = BF1ARRAY_SIZE; i > 0; i--)
 		info->prevwork[i] = info->prevwork[i - 1];
-	info->prevwork[0] = copy_work(work);
-	work->blk.nonce = 0xffffffff;
+	info->prevwork[0] = work;
 
 	info->cycles++;
 	info->total_nonces += info->nonces;
@@ -358,7 +363,8 @@ struct device_drv bitfury_drv = {
 	.dname = "bitfury",
 	.name = "BF1",
 	.drv_detect = bitfury_detect,
-	.scanhash = bitfury_scanhash,
+	.hash_work = &hash_driver_work,
+	.scanwork = bitfury_scanwork,
 	.get_api_stats = bitfury_api_stats,
 	.reinit_device = bitfury_init,
 	.thread_shutdown = bitfury_shutdown,

miner.h

@@ -1384,6 +1384,7 @@ extern void submit_tested_work(struct thr_info *thr, struct work *work);
 extern bool submit_nonce(struct thr_info *thr, struct work *work, uint32_t nonce);
 extern bool submit_noffset_nonce(struct thr_info *thr, struct work *work, uint32_t nonce,
 			  int noffset);
+extern struct work *get_work(struct thr_info *thr, const int thr_id);
 extern struct work *get_queued(struct cgpu_info *cgpu);
 extern struct work *__find_work_bymidstate(struct work *que, char *midstate, size_t midstatelen, char *data, int offset, size_t datalen);
 extern struct work *find_queued_work_bymidstate(struct cgpu_info *cgpu, char *midstate, size_t midstatelen, char *data, int offset, size_t datalen);