linux-kernel - [PATCH 4.14 123/164] nfp: inherit the max

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

Date:   Tue, 12 Dec 2017 13:45:03 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Dirk van der Merwe <dirk.vandermerwe@...ronome.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.14 123/164] nfp: inherit the max_mtu from the PF netdev

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dirk van der Merwe <dirk.vandermerwe@...ronome.com>


[ Upstream commit 743ba5b47f7961fb29f2e06bb694fb4f068ac58f ]

The PF netdev is used for data transfer for reprs, so reprs inherit the
maximum MTU settings of the PF netdev.

Fixes: 5de73ee46704 ("nfp: general representor implementation")
Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@...ronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/netronome/nfp/nfp_net_repr.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c
@@ -297,6 +297,8 @@ int nfp_repr_init(struct nfp_app *app, s
 	netdev->netdev_ops = &nfp_repr_netdev_ops;
 	netdev->ethtool_ops = &nfp_port_ethtool_ops;
 
+	netdev->max_mtu = pf_netdev->max_mtu;
+
 	SWITCHDEV_SET_OPS(netdev, &nfp_port_switchdev_ops);
 
 	if (nfp_app_has_tc(app)) {