ionic: only sync frag_len in first buffer of xdp

We don't want to try to sync more length than might be
in the first frag of an Rx skb, so make sure to use
the frag_len rather than the full len.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Link: https://lore.kernel.org/r/20240529000259.25775-7-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
index 14aa3844b699958c2eca42e9300e8db2aa318004..c3a6c4af52f116c7a903f064daa4172ad30706f6 100644 (file)
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
@@ -502,7 +502,7 @@ static bool ionic_run_xdp(struct ionic_rx_stats *stats,
                         XDP_PACKET_HEADROOM, frag_len, false);
 
        dma_sync_single_range_for_cpu(rxq->dev, ionic_rx_buf_pa(buf_info),
-                                     XDP_PACKET_HEADROOM, len,
+                                     XDP_PACKET_HEADROOM, frag_len,
                                      DMA_FROM_DEVICE);
 
        prefetchw(&xdp_buf.data_hard_start);