| Message ID | 20170323173648.21143-4-f.fainelli@gmail.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c index c915bcfae0af..61e26c6b26ab 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -682,11 +682,7 @@ static unsigned int bcm_sysport_desc_rx(struct bcm_sysport_priv *priv, p_index = rdma_readl(priv, RDMA_CONS_INDEX); p_index &= RDMA_PROD_INDEX_MASK; - if (p_index < priv->rx_c_index) - to_process = (RDMA_CONS_INDEX_MASK + 1) - - priv->rx_c_index + p_index; - else - to_process = p_index - priv->rx_c_index; + to_process = (p_index - priv->rx_c_index) & RDMA_CONS_INDEX_MASK; netif_dbg(priv, rx_status, ndev, "p_index=%d rx_c_index=%d to_process=%d\n",
Similar to c298ede2fe21 ("net: bcmgenet: simplify circular pointer arithmetic") we don't need to complex arthimetic since we always have a ring size that is a power of 2. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> --- drivers/net/ethernet/broadcom/bcmsysport.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)