linux-kernel - [PATCH] ntb_netdev: set the net

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Message-Id: <20171209000106.18259-1-logang@deltatee.com>
Date:   Fri,  8 Dec 2017 17:01:04 -0700
From:   Logan Gunthorpe <logang@...tatee.com>
To:     linux-ntb@...glegroups.com, linux-kernel@...r.kernel.org
Cc:     Logan Gunthorpe <logang@...tatee.com>,
        Jon Mason <jdmason@...zu.us>,
        Dave Jiang <dave.jiang@...el.com>,
        Allen Hubbe <Allen.Hubbe@....com>
Subject: [PATCH] ntb_netdev: set the net_device's parent

At present, ntb_netdev devices end up under /sys/devices/virtual/net
completely unconnected to the ntb trees below them. This patch sets the
parent of the net_device (using SET_NETDEV_DEV) to the client_dev
device. This results in a better connected sysfs path for the network
device:

/sys/devices/pci0000:00/0000:00:03.0/0000:03:00.1/0000:03:00.1/ntb_netdev0/net/eth2

Signed-off-by: Logan Gunthorpe <logang@...tatee.com>
Cc: Jon Mason <jdmason@...zu.us>
Cc: Dave Jiang <dave.jiang@...el.com>
Cc: Allen Hubbe <Allen.Hubbe@....com>
---
 drivers/net/ntb_netdev.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ntb_netdev.c b/drivers/net/ntb_netdev.c
index 4daf3d0926a8..0250aa9ae2cb 100644
--- a/drivers/net/ntb_netdev.c
+++ b/drivers/net/ntb_netdev.c
@@ -418,6 +418,8 @@ static int ntb_netdev_probe(struct device *client_dev)
 	if (!ndev)
 		return -ENOMEM;
 
+	SET_NETDEV_DEV(ndev, client_dev);
+
 	dev = netdev_priv(ndev);
 	dev->ndev = ndev;
 	dev->pdev = pdev;
-- 
2.11.0