diff mbox series

[net-next,1/2] net: bridge: Do not allocate stats in the driver

Message ID 20240227182338.2739884-1-leitao@debian.org
State New
Headers
Series [net-next,1/2] net: bridge: Do not allocate stats in the driver |

Commit Message

Breno Leitao Feb. 27, 2024, 6:23 p.m. UTC 
  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 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 bridge driver and leverage the network
core allocation.

Signed-off-by: Breno Leitao <leitao@debian.org>
---
 net/bridge/br_device.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

Comments

patchwork-bot+netdevbpf@kernel.org Feb. 29, 2024, 4:20 a.m. UTC | #1 
Hello:

This series was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Tue, 27 Feb 2024 10:23:36 -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 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: bridge: Do not allocate stats in the driver
    https://git.kernel.org/netdev/net-next/c/d35150c79ffc
  - [net-next,2/2] net: bridge: Exit if multicast_init_stats fails
    https://git.kernel.org/netdev/net-next/c/82a48affb36f

You are awesome, thank you!
diff mbox series

Patch

diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 874cec75a818..4f636f7b0555 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -113,26 +113,18 @@  static int br_dev_init(struct net_device *dev)
 	struct net_bridge *br = netdev_priv(dev);
 	int err;
 
-	dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
-	if (!dev->tstats)
-		return -ENOMEM;
-
 	err = br_fdb_hash_init(br);
-	if (err) {
-		free_percpu(dev->tstats);
+	if (err)
 		return err;
-	}
 
 	err = br_mdb_hash_init(br);
 	if (err) {
-		free_percpu(dev->tstats);
 		br_fdb_hash_fini(br);
 		return err;
 	}
 
 	err = br_vlan_init(br);
 	if (err) {
-		free_percpu(dev->tstats);
 		br_mdb_hash_fini(br);
 		br_fdb_hash_fini(br);
 		return err;
@@ -140,7 +132,6 @@  static int br_dev_init(struct net_device *dev)
 
 	err = br_multicast_init_stats(br);
 	if (err) {
-		free_percpu(dev->tstats);
 		br_vlan_flush(br);
 		br_mdb_hash_fini(br);
 		br_fdb_hash_fini(br);
@@ -159,7 +150,6 @@  static void br_dev_uninit(struct net_device *dev)
 	br_vlan_flush(br);
 	br_mdb_hash_fini(br);
 	br_fdb_hash_fini(br);
-	free_percpu(dev->tstats);
 }
 
 static int br_dev_open(struct net_device *dev)
@@ -496,6 +486,7 @@  void br_dev_setup(struct net_device *dev)
 	dev->hw_features = COMMON_FEATURES | NETIF_F_HW_VLAN_CTAG_TX |
 			   NETIF_F_HW_VLAN_STAG_TX;
 	dev->vlan_features = COMMON_FEATURES;
+	dev->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS;
 
 	br->dev = dev;
 	spin_lock_init(&br->lock);