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ntb_netdev: Simplify remove with client device drvdata 

Replace the elaborate private structure global linked-list used in
ntb_netdev_probe() and ntb_netdev_remove() by stashing our private
data in the NTB transport client device.

Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
This commit is contained in:
Aaron Sierra 2018-10-15 15:32:47 -05:00 committed by Jon Mason
parent fc5d1829f9
commit 906e86b22d
1 changed files with 3 additions and 25 deletions
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28
drivers/net/ntb_netdev.c
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@ -71,7 +71,6 @@ static unsigned int tx_start = 10;
static unsigned int tx_stop = 5;
struct ntb_netdev {
struct list_head list;
struct pci_dev *pdev;
struct net_device *ndev;
struct ntb_transport_qp *qp;
@ -81,8 +80,6 @@ struct ntb_netdev {
#define NTB_TX_TIMEOUT_MS 1000
#define NTB_RXQ_SIZE 100
static LIST_HEAD(dev_list);
static void ntb_netdev_event_handler(void *data, int link_is_up)
{
struct net_device *ndev = data;
@ -452,7 +449,7 @@ static int ntb_netdev_probe(struct device *client_dev)
if (rc)
goto err1;
list_add(&dev->list, &dev_list);
dev_set_drvdata(client_dev, ndev);
dev_info(&pdev->dev, "%s created\n", ndev->name);
return 0;
@ -465,27 +462,8 @@ err:
static void ntb_netdev_remove(struct device *client_dev)
{
struct ntb_dev *ntb;
struct net_device *ndev;
struct pci_dev *pdev;
struct ntb_netdev *dev;
bool found = false;
ntb = dev_ntb(client_dev->parent);
pdev = ntb->pdev;
list_for_each_entry(dev, &dev_list, list) {
if (dev->pdev == pdev) {
found = true;
break;
}
}
if (!found)
return;
list_del(&dev->list);
ndev = dev->ndev;
struct net_device *ndev = dev_get_drvdata(client_dev);
struct ntb_netdev *dev = netdev_priv(ndev);
unregister_netdev(ndev);
ntb_transport_free_queue(dev->qp);