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.faine...@gmail.com>
---
drivers/net/ethernet/broadcom/bcmsysport.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
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",
--
2.9.3
