From a613f581489aff23189c4945aec9567f6663b0c6 Mon Sep 17 00:00:00 2001 From: Santiago Leon Date: Fri, 3 Sep 2010 18:28:04 +0000 Subject: ibmveth: Remove integer divide caused by modulus Replace some modulus operators with an increment and compare to avoid an integer divide. Signed-off-by: Anton Blanchard Signed-off-by: Santiago Leon Signed-off-by: David S. Miller --- drivers/net/ibmveth.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'drivers/net/ibmveth.c') diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c index 4734c939ad03..d2cc6d3f401c 100644 --- a/drivers/net/ibmveth.c +++ b/drivers/net/ibmveth.c @@ -252,7 +252,9 @@ static void ibmveth_replenish_buffer_pool(struct ibmveth_adapter *adapter, struc } free_index = pool->consumer_index; - pool->consumer_index = (pool->consumer_index + 1) % pool->size; + pool->consumer_index++; + if (pool->consumer_index >= pool->size) + pool->consumer_index = 0; index = pool->free_map[free_index]; ibmveth_assert(index != IBM_VETH_INVALID_MAP); @@ -377,9 +379,10 @@ static void ibmveth_remove_buffer_from_pool(struct ibmveth_adapter *adapter, u64 DMA_FROM_DEVICE); free_index = adapter->rx_buff_pool[pool].producer_index; - adapter->rx_buff_pool[pool].producer_index - = (adapter->rx_buff_pool[pool].producer_index + 1) - % adapter->rx_buff_pool[pool].size; + adapter->rx_buff_pool[pool].producer_index++; + if (adapter->rx_buff_pool[pool].producer_index >= + adapter->rx_buff_pool[pool].size) + adapter->rx_buff_pool[pool].producer_index = 0; adapter->rx_buff_pool[pool].free_map[free_index] = index; mb(); -- cgit v1.2.3