netdev - [net-next] ravb: Correct buffer size to map for R-Car Rx

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240308224237.496924-1-niklas.soderlund+renesas@ragnatech.se>
Date: Fri,  8 Mar 2024 23:42:37 +0100
From: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
To: Sergey Shtylyov <s.shtylyov@....ru>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
	netdev@...r.kernel.org
Cc: linux-renesas-soc@...r.kernel.org,
	Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
Subject: [net-next] ravb: Correct buffer size to map for R-Car Rx

When creating a helper to allocate and align an skb one location where
the skb data size was updated was missed. This can lead to a warning
being printed when the memory is being unmapped as it now always unmap
the maximum frame size, instead of the size after it have been
aligned.

This was correctly done for RZ/G2L but missed for R-Car.

Fixes: cfbad64706c1 ("ravb: Create helper to allocate skb and align it")
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
---
 drivers/net/ethernet/renesas/ravb_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index fa48ff4aba2d..d1be030c8848 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -979,7 +979,7 @@ static bool ravb_rx_rcar(struct net_device *ndev, int *quota, int q)
 			if (!skb)
 				break;	/* Better luck next round. */
 			dma_addr = dma_map_single(ndev->dev.parent, skb->data,
-						  le16_to_cpu(desc->ds_cc),
+						  priv->info->rx_max_frame_size,
 						  DMA_FROM_DEVICE);
 			skb_checksum_none_assert(skb);
 			/* We just set the data size to 0 for a failed mapping
-- 
2.44.0