diff options
| author |   Stephen Hemminger <stephen@networkplumber.org> | 2017-12-12 16:48:39 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-12-13 15:57:39 -0500 |
| commit | 0da6edbd3a379433814c738e932474057537107c (patch) | |
| tree | 490209e29e99c77cdad63610df53c9fe932a656a /drivers/net/hyperv | |
| parent | hv_netvsc: pass netvsc_device to receive callback (diff) | |
| download | linux-dev-0da6edbd3a379433814c738e932474057537107c.tar.xz linux-dev-0da6edbd3a379433814c738e932474057537107c.zip | |
hv_netvsc: remove open_cnt reference count
There is only ever a single instance of network device object
referencing the internal rndis object. Therefore the open_cnt atomic
is not necessary.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hyperv')
| -rw-r--r-- | drivers/net/hyperv/hyperv_net.h | 2 | ||||
| -rw-r--r-- | drivers/net/hyperv/netvsc.c | 2 | ||||
| -rw-r--r-- | drivers/net/hyperv/rndis_filter.c | 10 |
3 files changed, 4 insertions, 10 deletions
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h index b090d90114ca..b10c99751e3a 100644 --- a/drivers/net/hyperv/hyperv_net.h +++ b/drivers/net/hyperv/hyperv_net.h @@ -823,8 +823,6 @@ struct netvsc_device { u32 max_pkt; /* max number of pkt in one send, e.g. 8 */ u32 pkt_align; /* alignment bytes, e.g. 8 */ - atomic_t open_cnt; - struct netvsc_channel chan_table[VRSS_CHANNEL_MAX]; struct rcu_head rcu; diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index d1a740add1bc..83fa55336c1b 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -73,7 +73,7 @@ static struct netvsc_device *alloc_net_device(void) init_waitqueue_head(&net_device->wait_drain); net_device->destroy = false; - atomic_set(&net_device->open_cnt, 0); + net_device->max_pkt = RNDIS_MAX_PKT_DEFAULT; net_device->pkt_align = RNDIS_PKT_ALIGN_DEFAULT; diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c index 025110a19d4a..035976949177 100644 --- a/drivers/net/hyperv/rndis_filter.c +++ b/drivers/net/hyperv/rndis_filter.c @@ -1362,9 +1362,6 @@ int rndis_filter_open(struct netvsc_device *nvdev) if (!nvdev) return -EINVAL; - if (atomic_inc_return(&nvdev->open_cnt) != 1) - return 0; - return rndis_filter_open_device(nvdev->extension); } @@ -1373,13 +1370,12 @@ int rndis_filter_close(struct netvsc_device *nvdev) if (!nvdev) return -EINVAL; - if (atomic_dec_return(&nvdev->open_cnt) != 0) - return 0; - return rndis_filter_close_device(nvdev->extension); } bool rndis_filter_opened(const struct netvsc_device *nvdev) { - return atomic_read(&nvdev->open_cnt) > 0; + const struct rndis_device *dev = nvdev->extension; + + return dev->state == RNDIS_DEV_DATAINITIALIZED; } |