ar71xx: ag71xx: use dma_unmap_single to unmap frames

[openwrt/openwrt.git] / target / linux / ar71xx / files / drivers / net / ag71xx / ag71xx_main.c

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
index a3edd43aaf30e3a22de44630ad751f4139d249da..cb4ccf06b6d7bd04c4a060833655800aa3487266 100644 (file)
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
@@ -185,9 +185,11 @@ static void ag71xx_ring_rx_clean(struct ag71xx *ag)
                return;
 
        for (i = 0; i < AG71XX_RX_RING_SIZE; i++)
-               if (ring->buf[i].skb)
+               if (ring->buf[i].skb) {
+                       dma_unmap_single(&ag->dev->dev, ring->buf[i].dma_addr,
+                                        AG71XX_RX_PKT_SIZE, DMA_FROM_DEVICE);
                        kfree_skb(ring->buf[i].skb);
-
+               }
 }
 
 static int ag71xx_ring_rx_init(struct ag71xx *ag)
@@ -223,6 +225,7 @@ static int ag71xx_ring_rx_init(struct ag71xx *ag)
                                          AG71XX_RX_PKT_SIZE,
                                          DMA_FROM_DEVICE);
                ring->buf[i].skb = skb;
+               ring->buf[i].dma_addr = dma_addr;
                ring->buf[i].desc->data = (u32) dma_addr;
                ring->buf[i].desc->ctrl = DESC_EMPTY;
        }
@@ -264,6 +267,7 @@ static int ag71xx_ring_rx_refill(struct ag71xx *ag)
                                                  DMA_FROM_DEVICE);
 
                        ring->buf[i].skb = skb;
+                       ring->buf[i].dma_addr = dma_addr;
                        ring->buf[i].desc->data = (u32) dma_addr;
                }
 
@@ -684,6 +688,9 @@ static int ag71xx_rx_packets(struct ag71xx *ag, int limit)
                pktlen = ag71xx_desc_pktlen(desc);
                pktlen -= ETH_FCS_LEN;
 
+               dma_unmap_single(&dev->dev, ring->buf[i].dma_addr,
+                                AG71XX_RX_PKT_SIZE, DMA_FROM_DEVICE);
+
                skb_put(skb, pktlen);
 
                skb->dev = dev;