From cb3685958dd4c46d7646d244063ea3ec8adf3618 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Sat, 24 Oct 2015 00:46:40 +0300 Subject: [PATCH] sh_eth: fix RX buffer size calculation The RX buffer size calulation failed to account for the length granularity (which is now 32 bytes)... Signed-off-by: Sergei Shtylyov Signed-off-by: David S. Miller --- drivers/net/ethernet/renesas/sh_eth.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index d8334d8a53b3..a484d8beb855 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -1127,7 +1127,7 @@ static void sh_eth_ring_format(struct net_device *ndev) struct sh_eth_txdesc *txdesc = NULL; int rx_ringsize = sizeof(*rxdesc) * mdp->num_rx_ring; int tx_ringsize = sizeof(*txdesc) * mdp->num_tx_ring; - int skbuff_size = mdp->rx_buf_sz + SH_ETH_RX_ALIGN - 1; + int skbuff_size = mdp->rx_buf_sz + SH_ETH_RX_ALIGN + 32 - 1; dma_addr_t dma_addr; mdp->cur_rx = 0; @@ -1450,7 +1450,7 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota) struct sk_buff *skb; u16 pkt_len = 0; u32 desc_status; - int skbuff_size = mdp->rx_buf_sz + SH_ETH_RX_ALIGN - 1; + int skbuff_size = mdp->rx_buf_sz + SH_ETH_RX_ALIGN + 32 - 1; dma_addr_t dma_addr; boguscnt = min(boguscnt, *quota); -- 2.39.2