netdev - [PATCH net-next] ibmvnic: fix accelerated VLAN handling

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-Id: <8e3c0fc229bbbc549e2529e3c174b7ef477b181c.1483487887.git.mirq-linux@rere.qmqm.pl>
Date:   Wed,  4 Jan 2017 01:07:57 +0100 (CET)
From:   Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:     netdev@...r.kernel.org
Cc:     Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>,
        John Allen <jallen@...ux.vnet.ibm.com>
Subject: [PATCH net-next] ibmvnic: fix accelerated VLAN handling

Signed-off-by: Michał Mirosław <mirq-linux@...e.qmqm.pl>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index c12596676bbb..c7664db9019c 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -765,7 +765,7 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev)
 	tx_crq.v1.sge_len = cpu_to_be32(skb->len);
 	tx_crq.v1.ioba = cpu_to_be64(data_dma_addr);
 
-	if (adapter->vlan_header_insertion) {
+	if (adapter->vlan_header_insertion && skb_vlan_tag_present(skb)) {
 		tx_crq.v1.flags2 |= IBMVNIC_TX_VLAN_INSERT;
 		tx_crq.v1.vlan_id = cpu_to_be16(skb->vlan_tci);
 	}
@@ -964,7 +964,8 @@ static int ibmvnic_poll(struct napi_struct *napi, int budget)
 		skb = rx_buff->skb;
 		skb_copy_to_linear_data(skb, rx_buff->data + offset,
 					length);
-		skb->vlan_tci = be16_to_cpu(next->rx_comp.vlan_tci);
+		if (flags & IBMVNIC_VLAN_STRIPPED)
+			__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), be16_to_cpu(next->rx_comp.vlan_tci));
 		/* free the entry */
 		next->rx_comp.first = 0;
 		remove_buff_from_pool(adapter, rx_buff);
-- 
2.11.0