RDMA/siw: Make use of the helper macro kthread_run_on_cpu()

Repalce kthread_create/kthread_bind/wake_up_process()
with kthread_run_on_cpu() to simplify the code.

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>

drivers/infiniband/sw/siw/siw_main.c

@@ -98,15 +98,14 @@ static int siw_create_tx_threads(void)
 			continue;
 
 		siw_tx_thread[cpu] =
-			kthread_create(siw_run_sq, (unsigned long *)(long)cpu,
-				       "siw_tx/%d", cpu);
+			kthread_run_on_cpu(siw_run_sq,
+					   (unsigned long *)(long)cpu,
+					   cpu, "siw_tx/%u");
 		if (IS_ERR(siw_tx_thread[cpu])) {
 			siw_tx_thread[cpu] = NULL;
 			continue;
 		}
-		kthread_bind(siw_tx_thread[cpu], cpu);
 
-		wake_up_process(siw_tx_thread[cpu]);
 		assigned++;
 	}
 	return assigned;