[PATCH 2/2] sh_eth: fix RX buffer size calculation
From: Sergei Shtylyov <hidden>
Date: 2015-10-23 21:46:43
Also in:
linux-sh
The RX buffer size calulation failed to account for the length granularity (which is now 32 bytes)... Signed-off-by: Sergei Shtylyov <redacted> --- drivers/net/ethernet/renesas/sh_eth.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) Index: net/drivers/net/ethernet/renesas/sh_eth.c ===================================================================
--- net.orig/drivers/net/ethernet/renesas/sh_eth.c
+++ net/drivers/net/ethernet/renesas/sh_eth.c@@ -1127,7 +1127,7 @@ static void sh_eth_ring_format(struct ne 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 * 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);