[PATCH v2 net-next] ipvlan: use netif_receive_skb() in ipvlan_process_multicast()

[PATCH v2 net-next] ipvlan: use netif_receive_skb() in ipvlan_process_multicast()

[Eric Dumazet]

ipvlan_process_multicast() runs from process context, there is no
risk of stack overflow if we call netif_receive_skb() instead
of netif_rx().

This avoids some overhead adding/removing skbs to/from a per-cpu
backlog and raising/processing NET_RX softirqs.

Signed-off-by: Eric Dumazet <edumazet@google.com>
---
v2: Resend after realizing Sashiko's feedback was not actionable.

 drivers/net/ipvlan/ipvlan_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ipvlan/ipvlan_core.c b/drivers/net/ipvlan/ipvlan_core.c
index 1be8620ad3971d281fb36fd0770efd67b566ae60..7ad12dc7845c836bdd04395f153b2b4b397797d6 100644
--- a/drivers/net/ipvlan/ipvlan_core.c
+++ b/drivers/net/ipvlan/ipvlan_core.c
@@ -286,7 +286,7 @@ void ipvlan_process_multicast(struct work_struct *work)
 				if (tx_pkt)
 					ret = dev_forward_skb(ipvlan->dev, nskb);
 				else
-					ret = netif_rx(nskb);
+					ret = netif_receive_skb(nskb);
 			}
 			ipvlan_count_rx(ipvlan, len, ret == NET_RX_SUCCESS, true);
 			local_bh_enable();
-- 
2.54.0.563.g4f69b47b94-goog

Re: [PATCH v2 net-next] ipvlan: use netif_receive_skb() in ipvlan_process_multicast()

[patchwork-bot+netdevbpf]

Hello:

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

On Tue, 12 May 2026 04:20:19 +0000 you wrote:
> ipvlan_process_multicast() runs from process context, there is no
> risk of stack overflow if we call netif_receive_skb() instead
> of netif_rx().
> 
> This avoids some overhead adding/removing skbs to/from a per-cpu
> backlog and raising/processing NET_RX softirqs.
> 
> [...]

Here is the summary with links:
  - [v2,net-next] ipvlan: use netif_receive_skb() in ipvlan_process_multicast()
    https://git.kernel.org/netdev/net-next/c/d0273dbe8be1

You are awesome, thank you!
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