diff options
| author |   Ilias Apalodimas <ilias.apalodimas@linaro.org> | 2019-10-16 14:40:32 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-10-17 15:35:56 -0400 |
| commit | d9496f3ecfe4823c1e12aecbcc29220147fa012c (patch) | |
| tree | c90fa3c1f00577454c6abed18e1a931b6832f1a6 | |
| parent | net: sched: Avoid using yield() in a busy waiting loop (diff) | |
| download | linux-dev-d9496f3ecfe4823c1e12aecbcc29220147fa012c.tar.xz linux-dev-d9496f3ecfe4823c1e12aecbcc29220147fa012c.zip | |
net: netsec: Correct dma sync for XDP_TX frames
bpf_xdp_adjust_head() can change the frame boundaries. Account for the
potential shift properly by calculating the new offset before
syncing the buffer to the device for XDP_TX
Fixes: ba2b232108d3 ("net: netsec: add XDP support")
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/socionext/netsec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/socionext/netsec.c b/drivers/net/ethernet/socionext/netsec.c index c40294470bfa..869a498e3b5e 100644 --- a/drivers/net/ethernet/socionext/netsec.c +++ b/drivers/net/ethernet/socionext/netsec.c @@ -847,8 +847,8 @@ static u32 netsec_xdp_queue_one(struct netsec_priv *priv, enum dma_data_direction dma_dir = page_pool_get_dma_dir(rx_ring->page_pool); - dma_handle = page_pool_get_dma_addr(page) + - NETSEC_RXBUF_HEADROOM; + dma_handle = page_pool_get_dma_addr(page) + xdpf->headroom + + sizeof(*xdpf); dma_sync_single_for_device(priv->dev, dma_handle, xdpf->len, dma_dir); tx_desc.buf_type = TYPE_NETSEC_XDP_TX; |