[PATCH 4/4] hv_netvsc: Pass net_device parameter to revoke and teardown functions

[Mohammed Gamal]

The callers to netvsc_revoke_*_buf() and netvsc_teardown_*_gpadl()
already have their net_device instances. Pass them as a paramaeter to
the function instead of obtaining them from netvsc_device struct
everytime

Signed-off-by: Mohammed Gamal <mga...@redhat.com>
---
 drivers/net/hyperv/netvsc.c | 37 ++++++++++++++++++-------------------
 1 file changed, 18 insertions(+), 19 deletions(-)

diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index df92c2f..04f611e 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -110,9 +110,9 @@ static void free_netvsc_device_rcu(struct netvsc_device 
*nvdev)
 }
 
 static void netvsc_revoke_recv_buf(struct hv_device *device,
-                                  struct netvsc_device *net_device)
+                                  struct netvsc_device *net_device,
+                                  struct net_device *ndev)
 {
-       struct net_device *ndev = hv_get_drvdata(device);
        struct nvsp_message *revoke_packet;
        int ret;
 
@@ -160,9 +160,9 @@ static void netvsc_revoke_recv_buf(struct hv_device *device,
 }
 
 static void netvsc_revoke_send_buf(struct hv_device *device,
-                                  struct netvsc_device *net_device)
+                                  struct netvsc_device *net_device,
+                                  struct net_device *ndev)
 {
-       struct net_device *ndev = hv_get_drvdata(device);
        struct nvsp_message *revoke_packet;
        int ret;
 
@@ -211,9 +211,9 @@ static void netvsc_revoke_send_buf(struct hv_device *device,
 }
 
 static void netvsc_teardown_recv_gpadl(struct hv_device *device,
-                                      struct netvsc_device *net_device)
+                                      struct netvsc_device *net_device,
+                                      struct net_device *ndev)
 {
-       struct net_device *ndev = hv_get_drvdata(device);
        int ret;
 
        if (net_device->recv_buf_gpadl_handle) {
@@ -233,9 +233,9 @@ static void netvsc_teardown_recv_gpadl(struct hv_device 
*device,
 }
 
 static void netvsc_teardown_send_gpadl(struct hv_device *device,
-                                      struct netvsc_device *net_device)
+                                      struct netvsc_device *net_device,
+                                      struct net_device *ndev)
 {
-       struct net_device *ndev = hv_get_drvdata(device);
        int ret;
 
        if (net_device->send_buf_gpadl_handle) {
@@ -452,10 +452,10 @@ static int netvsc_init_buf(struct hv_device *device,
        goto exit;
 
 cleanup:
-       netvsc_revoke_recv_buf(device, net_device);
-       netvsc_revoke_send_buf(device, net_device);
-       netvsc_teardown_recv_gpadl(device, net_device);
-       netvsc_teardown_send_gpadl(device, net_device);
+       netvsc_revoke_recv_buf(device, net_device, ndev);
+       netvsc_revoke_send_buf(device, net_device, ndev);
+       netvsc_teardown_recv_gpadl(device, net_device, ndev);
+       netvsc_teardown_send_gpadl(device, net_device, ndev);
 
 exit:
        return ret;
@@ -474,7 +474,6 @@ static int negotiate_nvsp_ver(struct hv_device *device,
        init_packet->hdr.msg_type = NVSP_MSG_TYPE_INIT;
        init_packet->msg.init_msg.init.min_protocol_ver = nvsp_ver;
        init_packet->msg.init_msg.init.max_protocol_ver = nvsp_ver;
-
        trace_nvsp_send(ndev, init_packet);
 
        /* Send the init request */
@@ -596,13 +595,13 @@ void netvsc_device_remove(struct hv_device *device)
         * Revoke receive buffer. If host is pre-Win2016 then tear down
         * receive buffer GPADL. Do the same for send buffer.
         */
-       netvsc_revoke_recv_buf(device, net_device);
+       netvsc_revoke_recv_buf(device, net_device, ndev);
        if (vmbus_proto_version < VERSION_WIN10)
-               netvsc_teardown_recv_gpadl(device, net_device);
+               netvsc_teardown_recv_gpadl(device, net_device, ndev);
 
-       netvsc_revoke_send_buf(device, net_device);
+       netvsc_revoke_send_buf(device, net_device, ndev);
        if (vmbus_proto_version < VERSION_WIN10)
-               netvsc_teardown_send_gpadl(device, net_device);
+               netvsc_teardown_send_gpadl(device, net_device, ndev);
 
        RCU_INIT_POINTER(net_device_ctx->nvdev, NULL);
 
@@ -624,8 +623,8 @@ void netvsc_device_remove(struct hv_device *device)
         * here after VMBus is closed.
        */
        if (vmbus_proto_version >= VERSION_WIN10) {
-               netvsc_teardown_recv_gpadl(device, net_device);
-               netvsc_teardown_send_gpadl(device, net_device);
+               netvsc_teardown_recv_gpadl(device, net_device, ndev);
+               netvsc_teardown_send_gpadl(device, net_device, ndev);
        }
 
        /* Release all resources */
-- 
1.8.3.1