With commit 34d21de99cea9 ("net: Move {l,t,d}stats allocation to core and
convert veth & vrf"), stats allocation could be done on net core
instead of in this driver.
With this new approach, the driver doesn't have to bother with error
handling (allocation failure checking, making sure free happens in the
right spot, etc). This is core responsibility now.
Remove the allocation in the usbnet driver and leverage the network
core allocation instead.
Signed-off-by: Breno Leitao <[email protected]>
---
drivers/net/usb/usbnet.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index b21ebe24057f..a3a46794ce43 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1633,7 +1633,6 @@ void usbnet_disconnect (struct usb_interface *intf)
usb_free_urb(dev->interrupt);
kfree(dev->padding_pkt);
- free_percpu(net->tstats);
free_netdev(net);
}
EXPORT_SYMBOL_GPL(usbnet_disconnect);
@@ -1710,10 +1709,6 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
dev->rx_speed = SPEED_UNSET;
dev->tx_speed = SPEED_UNSET;
- net->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
- if (!net->tstats)
- goto out0;
-
dev->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV
| NETIF_MSG_PROBE | NETIF_MSG_LINK);
init_waitqueue_head(&dev->wait);
@@ -1743,6 +1738,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
net->netdev_ops = &usbnet_netdev_ops;
net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
net->ethtool_ops = &usbnet_ethtool_ops;
+ net->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS;
// allow device-specific bind/init procedures
// NOTE net->name still not usable ...
@@ -1861,8 +1857,6 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
*/
cancel_work_sync(&dev->kevent);
del_timer_sync(&dev->delay);
- free_percpu(net->tstats);
-out0:
free_netdev(net);
out:
return status;
--
2.43.0
Commit 3e2f544dd8a33 ("net: get stats64 if device if driver is
configured") moved the callback to dev_get_tstats64() to net core, so,
unless the driver is doing some custom stats collection, it does not
need to set .ndo_get_stats64.
Since this driver is now relying in NETDEV_PCPU_STAT_TSTATS, then, it
doesn't need to set the dev_get_tstats64() generic .ndo_get_stats64
function pointer.
Signed-off-by: Breno Leitao <[email protected]>
---
drivers/net/usb/usbnet.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index a3a46794ce43..e84efa661589 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1644,7 +1644,6 @@ static const struct net_device_ops usbnet_netdev_ops = {
.ndo_tx_timeout = usbnet_tx_timeout,
.ndo_set_rx_mode = usbnet_set_rx_mode,
.ndo_change_mtu = usbnet_change_mtu,
- .ndo_get_stats64 = dev_get_tstats64,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};
--
2.43.0
On 06.03.24 15:26, Breno Leitao wrote:
> With commit 34d21de99cea9 ("net: Move {l,t,d}stats allocation to core and
> convert veth & vrf"), stats allocation could be done on net core
> instead of in this driver.
>
> With this new approach, the driver doesn't have to bother with error
> handling (allocation failure checking, making sure free happens in the
> right spot, etc). This is core responsibility now.
>
> Remove the allocation in the usbnet driver and leverage the network
> core allocation instead.
>
> Signed-off-by: Breno Leitao <[email protected]>
Acked-by: Oliver Neukum <[email protected]>
On 06.03.24 15:26, Breno Leitao wrote:
> Commit 3e2f544dd8a33 ("net: get stats64 if device if driver is
> configured") moved the callback to dev_get_tstats64() to net core, so,
> unless the driver is doing some custom stats collection, it does not
> need to set .ndo_get_stats64.
>
> Since this driver is now relying in NETDEV_PCPU_STAT_TSTATS, then, it
> doesn't need to set the dev_get_tstats64() generic .ndo_get_stats64
> function pointer.
>
> Signed-off-by: Breno Leitao <[email protected]>
Acked-by: Oliver Neukum <[email protected]>
Hello:
This series was applied to netdev/net-next.git (main)
by Jakub Kicinski <[email protected]>:
On Wed, 6 Mar 2024 06:26:41 -0800 you wrote:
> With commit 34d21de99cea9 ("net: Move {l,t,d}stats allocation to core and
> convert veth & vrf"), stats allocation could be done on net core
> instead of in this driver.
>
> With this new approach, the driver doesn't have to bother with error
> handling (allocation failure checking, making sure free happens in the
> right spot, etc). This is core responsibility now.
>
> [...]
Here is the summary with links:
- [net-next,1/2] net: usbnet: Leverage core stats allocator
https://git.kernel.org/netdev/net-next/c/352f5b328262
- [net-next,2/2] net: usbnet: Remove generic .ndo_get_stats64
https://git.kernel.org/netdev/net-next/c/9cb3d523c153
You are awesome, thank you!
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