diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ibmveth.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c index 4734c93..d2cc6d3 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(); |