diff options
| author | Fugang Duan <B38611@freescale.com> | 2013-07-04 17:22:38 +0800 |
|---|---|---|
| committer | Fugang Duan <B38611@freescale.com> | 2013-07-04 17:22:38 +0800 |
| commit | d3e5374cb5cdb478f524d76166712c753f69dd54 (patch) | |
| tree | de0157c0b4a2ce3c82c423edf76ae8c870476f77 /drivers | |
| parent | 3c524af5298eb48349a2ac8e42ebc65e21bb68cb (diff) | |
ENGR00264875 enet: fix DMA map/unmap mismatch
Enable "CONFIG_DMA_API_DEBUG" in kernel, and system generate
warning when run up.
WARNING:
/home/b29397/work/projects/linux-2.6-imx/lib/dma-debug.c:865
check_unmap+0x6f8/0x7d8()
net eth0: DMA-API: device driver tries to free DMA memory it
has not allocated [device address=0x00000000443d7040] [size=2048]
[<80025f60>] (warn_slowpath_common+0x0/0x6c) from [<80026070>]
(warn_slowpath_fmt+0x38/0x40) r9:00000000 r8:00000800 r7:807bfb0c
r6:807a3d48 r5:00000000
It is dma memory map/unmap mismatch issue caused by kernel upgrade.
Signed-off-by: Fugang Duan <B38611@freescale.com>
Diffstat (limited to 'drivers')
| -rwxr-xr-x | drivers/net/fec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/fec.c b/drivers/net/fec.c index fc65bdc96241..2132bad2bb4e 100755 --- a/drivers/net/fec.c +++ b/drivers/net/fec.c @@ -635,7 +635,7 @@ static int fec_rx_poll(struct napi_struct *napi, int budget) data = (__u8 *)__va(bdp->cbd_bufaddr); if (bdp->cbd_bufaddr) - dma_unmap_single(&ndev->dev, bdp->cbd_bufaddr, + dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr, FEC_ENET_RX_FRSIZE, DMA_FROM_DEVICE); if (id_entry->driver_data & FEC_QUIRK_SWAP_FRAME) @@ -663,7 +663,7 @@ static int fec_rx_poll(struct napi_struct *napi, int budget) netif_receive_skb(skb); } - bdp->cbd_bufaddr = dma_map_single(&ndev->dev, data, + bdp->cbd_bufaddr = dma_map_single(&fep->pdev->dev, data, FEC_ENET_RX_FRSIZE, DMA_FROM_DEVICE); rx_processing_done: /* Clear the status flags for this buffer */ |