[PATCH v4 net-next 5/7] net: mvneta: move header prefetch in mvneta_swbm_rx_frame

[Lorenzo Bianconi]

Move data buffer prefetch in mvneta_swbm_rx_frame after
dma_sync_single_range_for_cpu

Signed-off-by: Ilias Apalodimas <ilias.apalodi...@linaro.org>
Signed-off-by: Jesper Dangaard Brouer <bro...@redhat.com>
Signed-off-by: Lorenzo Bianconi <lore...@kernel.org>
---
 drivers/net/ethernet/marvell/mvneta.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c 
b/drivers/net/ethernet/marvell/mvneta.c
index 3b2c65a7c474..213b8f3eda44 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2024,6 +2024,9 @@ mvneta_swbm_rx_frame(struct mvneta_port *pp,
                                rx_desc->buf_phys_addr,
                                len, dma_dir);
 
+       /* Prefetch header */
+       prefetch(data);
+
        xdp->data_hard_start = data;
        xdp->data = data + MVNETA_SKB_HEADROOM + MVNETA_MH_SIZE;
        xdp->data_end = xdp->data + data_len;
@@ -2119,15 +2122,11 @@ static int mvneta_rx_swbm(struct napi_struct *napi,
        /* Fairness NAPI loop */
        while (done < budget && done < rx_pending) {
                struct mvneta_rx_desc *rx_desc = mvneta_rxq_next_desc_get(rxq);
-               unsigned char *data;
                struct page *page;
                int index;
 
                index = rx_desc - rxq->descs;
                page = (struct page *)rxq->buf_virt_addr[index];
-               data = page_address(page);
-               /* Prefetch header */
-               prefetch(data);
 
                rxq->refill_num++;
                done++;
-- 
2.21.0