linux-kernel - [PATCH net-next 4/5] hv_netvsc: pass struct net_device to rndis_filter_set_device

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Message-Id: <1464018638-22000-5-git-send-email-vkuznets@redhat.com>
Date:	Mon, 23 May 2016 17:50:37 +0200
From:	Vitaly Kuznetsov <vkuznets@...hat.com>
To:	netdev@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, devel@...uxdriverproject.org,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	"K. Y. Srinivasan" <kys@...rosoft.com>
Subject: [PATCH net-next 4/5] hv_netvsc: pass struct net_device to rndis_filter_set_device_mac()

We unpack 'struct net_device' in netvsc_set_mac_addr() to get to
'struct hv_device' pointer which we use in rndis_filter_set_device_mac()
to get back to 'struct net_device'.

Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
---
 drivers/net/hyperv/hyperv_net.h   | 2 +-
 drivers/net/hyperv/netvsc_drv.c   | 4 +---
 drivers/net/hyperv/rndis_filter.c | 3 +--
 3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index f650ec1..467fb8b 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -201,7 +201,7 @@ int rndis_filter_receive(struct hv_device *dev,
 			struct vmbus_channel *channel);
 
 int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter);
-int rndis_filter_set_device_mac(struct hv_device *hdev, char *mac);
+int rndis_filter_set_device_mac(struct net_device *ndev, char *mac);
 
 void netvsc_switch_datapath(struct net_device *nv_dev, bool vf);
 
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 591ab58..733dea1 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -982,8 +982,6 @@ static struct rtnl_link_stats64 *netvsc_get_stats64(struct net_device *net,
 
 static int netvsc_set_mac_addr(struct net_device *ndev, void *p)
 {
-	struct net_device_context *ndevctx = netdev_priv(ndev);
-	struct hv_device *hdev =  ndevctx->device_ctx;
 	struct sockaddr *addr = p;
 	char save_adr[ETH_ALEN];
 	unsigned char save_aatype;
@@ -996,7 +994,7 @@ static int netvsc_set_mac_addr(struct net_device *ndev, void *p)
 	if (err != 0)
 		return err;
 
-	err = rndis_filter_set_device_mac(hdev, addr->sa_data);
+	err = rndis_filter_set_device_mac(ndev, addr->sa_data);
 	if (err != 0) {
 		/* roll back to saved MAC */
 		memcpy(ndev->dev_addr, save_adr, ETH_ALEN);
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 2c2f3b9..f1692bc 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -543,9 +543,8 @@ static int rndis_filter_query_device_mac(struct rndis_device *dev)
 #define NWADR_STR "NetworkAddress"
 #define NWADR_STRLEN 14
 
-int rndis_filter_set_device_mac(struct hv_device *hdev, char *mac)
+int rndis_filter_set_device_mac(struct net_device *ndev, char *mac)
 {
-	struct net_device *ndev = hv_get_drvdata(hdev);
 	struct netvsc_device *nvdev = net_device_to_netvsc_device(ndev);
 	struct rndis_device *rdev = nvdev->extension;
 	struct rndis_request *request;
-- 
2.5.5