netdev - [PATCH net 6/7] ionic: only sync frag

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Message-ID: <20240521013715.12098-7-shannon.nelson@amd.com>
Date: Mon, 20 May 2024 18:37:14 -0700
From: Shannon Nelson <shannon.nelson@....com>
To: <netdev@...r.kernel.org>, <davem@...emloft.net>, <kuba@...nel.org>,
	<edumazet@...gle.com>, <pabeni@...hat.com>
CC: <brett.creeley@....com>, <drivers@...sando.io>, Shannon Nelson
	<shannon.nelson@....com>
Subject: [PATCH net 6/7] 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.

Fixes: 5377805dc1c0 ("ionic: implement xdp frags support")
Signed-off-by: Shannon Nelson <shannon.nelson@....com>
---
 drivers/net/ethernet/pensando/ionic/ionic_txrx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
index 14aa3844b699..c3a6c4af52f1 100644
--- 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);
-- 
2.17.1