| Message ID | 20240416120254.2620-4-paul.barker.ct@bp.renesas.com (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | c7c449502b51c5b5de79f97a42be750b28f6ecee |
| Delegated to: | Geert Uytterhoeven |
| Headers | show |
| Series | ravb Ethernet driver bugfixes | expand |
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 3b870926af14..6969cdeeb67a 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -843,7 +843,7 @@ static bool ravb_rx_gbeth(struct net_device *ndev, int *quota, int q) priv->rx_1st_skb->protocol = eth_type_trans(priv->rx_1st_skb, ndev); if (ndev->features & NETIF_F_RXCSUM) - ravb_rx_csum_gbeth(skb); + ravb_rx_csum_gbeth(priv->rx_1st_skb); napi_gro_receive(&priv->napi[q], priv->rx_1st_skb); rx_packets++;
Sending a 7kB ping packet to the RZ/G2L in v6.9-rc2 causes the following backtrace: WARNING: CPU: 0 PID: 0 at include/linux/skbuff.h:3127 skb_trim+0x30/0x38 Hardware name: Renesas SMARC EVK based on r9a07g044l2 (DT) pc : skb_trim+0x30/0x38 lr : ravb_rx_csum_gbeth+0x40/0x90 Call trace: skb_trim+0x30/0x38 ravb_rx_gbeth+0x56c/0x5cc ravb_poll+0xa0/0x204 __napi_poll+0x38/0x17c This is caused by ravb_rx_gbeth() calling ravb_rx_csum_gbeth() with the wrong skb for a packet which spans multiple descriptors. To fix this, use the correct skb. Fixes: c2da9408579d ("ravb: Add Rx checksum offload support for GbEth") Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru> --- No changes v2->v3: Changes v1->v2: * Trimmed the call trace in accordance with the docs [1]. * Add Sergey's Reviewed-by tag. [1]: https://docs.kernel.org/process/submitting-patches.html#backtraces-in-commit-messages drivers/net/ethernet/renesas/ravb_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)