From: Stephen Hemminger <stephen@networkplumber.org>
To: kys@microsoft.com, haiyangz@microsoft.com, sthemmin@microsoft.com
Cc: devel@linuxdriverproject.org, netdev@vger.kernel.org
Subject: [PATCH net-next 3/6] hv_netvsc: simplify function args in receive status path
Date: Tue, 12 Dec 2017 16:48:37 -0800 [thread overview]
Message-ID: <20171213004840.17507-4-sthemmin@microsoft.com> (raw)
In-Reply-To: <20171213004840.17507-1-sthemmin@microsoft.com>
The caller (netvsc_receive) already has the net device pointer,
and should just pass that to functions rather than the hyperv device.
This eliminates several impossible error paths in the process.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
---
drivers/net/hyperv/hyperv_net.h | 3 +--
drivers/net/hyperv/netvsc.c | 2 +-
drivers/net/hyperv/netvsc_drv.c | 12 ++----------
drivers/net/hyperv/rndis_filter.c | 9 +++------
4 files changed, 7 insertions(+), 19 deletions(-)
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 42bbde1cbe45..6463b7f5aa00 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -199,7 +199,7 @@ int netvsc_send(struct net_device_context *ndc,
struct rndis_message *rndis_msg,
struct hv_page_buffer *page_buffer,
struct sk_buff *skb);
-void netvsc_linkstatus_callback(struct hv_device *device_obj,
+void netvsc_linkstatus_callback(struct net_device *net,
struct rndis_message *resp);
int netvsc_recv_callback(struct net_device *net,
struct vmbus_channel *channel,
@@ -222,7 +222,6 @@ int rndis_filter_set_rss_param(struct rndis_device *rdev,
const u8 *key);
int rndis_filter_receive(struct net_device *ndev,
struct netvsc_device *net_dev,
- struct hv_device *dev,
struct vmbus_channel *channel,
void *data, u32 buflen);
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 9407907c4988..d8165407bcda 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -1077,7 +1077,7 @@ static int netvsc_receive(struct net_device *ndev,
u32 buflen = vmxferpage_packet->ranges[i].byte_count;
/* Pass it to the upper layer */
- status = rndis_filter_receive(ndev, net_device, device,
+ status = rndis_filter_receive(ndev, net_device,
channel, data, buflen);
}
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index d16b68974d80..6f12f81fd8aa 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -656,22 +656,14 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
/*
* netvsc_linkstatus_callback - Link up/down notification
*/
-void netvsc_linkstatus_callback(struct hv_device *device_obj,
+void netvsc_linkstatus_callback(struct net_device *net,
struct rndis_message *resp)
{
struct rndis_indicate_status *indicate = &resp->msg.indicate_status;
- struct net_device *net;
- struct net_device_context *ndev_ctx;
+ struct net_device_context *ndev_ctx = netdev_priv(net);
struct netvsc_reconfig *event;
unsigned long flags;
- net = hv_get_drvdata(device_obj);
-
- if (!net)
- return;
-
- ndev_ctx = netdev_priv(net);
-
/* Update the physical link speed when changing to another vSwitch */
if (indicate->status == RNDIS_STATUS_LINK_SPEED_CHANGE) {
u32 speed;
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 673492063307..901838b2bcc9 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -134,11 +134,9 @@ static void put_rndis_request(struct rndis_device *dev,
kfree(req);
}
-static void dump_rndis_message(struct hv_device *hv_dev,
+static void dump_rndis_message(struct net_device *netdev,
const struct rndis_message *rndis_msg)
{
- struct net_device *netdev = hv_get_drvdata(hv_dev);
-
switch (rndis_msg->ndis_msg_type) {
case RNDIS_MSG_PACKET:
netdev_dbg(netdev, "RNDIS_MSG_PACKET (len %u, "
@@ -397,7 +395,6 @@ static int rndis_filter_receive_data(struct net_device *ndev,
int rndis_filter_receive(struct net_device *ndev,
struct netvsc_device *net_dev,
- struct hv_device *dev,
struct vmbus_channel *channel,
void *data, u32 buflen)
{
@@ -419,7 +416,7 @@ int rndis_filter_receive(struct net_device *ndev,
}
if (netif_msg_rx_status(net_device_ctx))
- dump_rndis_message(dev, rndis_msg);
+ dump_rndis_message(ndev, rndis_msg);
switch (rndis_msg->ndis_msg_type) {
case RNDIS_MSG_PACKET:
@@ -434,7 +431,7 @@ int rndis_filter_receive(struct net_device *ndev,
case RNDIS_MSG_INDICATE:
/* notification msgs */
- netvsc_linkstatus_callback(dev, rndis_msg);
+ netvsc_linkstatus_callback(ndev, rndis_msg);
break;
default:
netdev_err(ndev,
--
2.11.0
next prev parent reply other threads:[~2017-12-13 0:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-13 0:48 [PATCH net-next 0/6] hv_netvsc: minor changes Stephen Hemminger
2017-12-13 0:48 ` [PATCH net-next 1/6] hv_netvsc: copy_to_send buf can be void Stephen Hemminger
2017-12-13 0:48 ` [PATCH net-next 2/6] hv_netvsc: track memory allocation failures in ethtool stats Stephen Hemminger
2017-12-13 0:48 ` Stephen Hemminger [this message]
2017-12-13 0:48 ` [PATCH net-next 4/6] hv_netvsc: pass netvsc_device to receive callback Stephen Hemminger
2017-12-13 0:48 ` [PATCH net-next 5/6] hv_netvsc: remove open_cnt reference count Stephen Hemminger
2017-12-13 0:48 ` [PATCH net-next 6/6] hv_netvsc: empty current transmit aggregation if flow blocked Stephen Hemminger
2017-12-13 20:57 ` [PATCH net-next 0/6] hv_netvsc: minor changes David Miller
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