On 12/18/24 19:19, Ido Schimmel wrote:
> On Tue, Dec 17, 2024 at 06:07:11PM -0500, Radu Rendec wrote:
>> @@ -520,6 +522,16 @@ enum skb_drop_reason {
>> * enabled.
>> */
>> SKB_DROP_REASON_ARP_PVLAN_DISABLE,
>> + /**
>> + * @SKB_DROP_REASON_MAC_IEEE_MAC_CONTROL: the destination MAC address
>> + * is an IEEE MAC Control address.
>> + */
>> + SKB_DROP_REASON_MAC_IEEE_MAC_CONTROL,
>> + /**
>> + * @SKB_DROP_REASON_BRIDGE_INGRESS_PORT_NFWD: the STP state of the
>
> s/SKB_DROP_REASON_BRIDGE_INGRESS_PORT_NFWD/SKB_DROP_REASON_BRIDGE_INGRESS_STP_STATE/
>
>> + * ingress bridge port does not allow frames to be forwarded.
>> + */
>> + SKB_DROP_REASON_BRIDGE_INGRESS_STP_STATE,
>> /**
>> * @SKB_DROP_REASON_MAX: the maximum of core drop reasons, which
>> * shouldn't be used as a real 'reason' - only for tracing code gen
>> diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
>> index e19b583ff2c6d..3e9b462809b0e 100644
>> --- a/net/bridge/br_forward.c
>> +++ b/net/bridge/br_forward.c
>> @@ -201,6 +201,7 @@ void br_flood(struct net_bridge *br, struct sk_buff *skb,
>> enum br_pkt_type pkt_type, bool local_rcv, bool local_orig,
>> u16 vid)
>> {
>> + enum skb_drop_reason reason = SKB_DROP_REASON_NO_TX_TARGET;
>> struct net_bridge_port *prev = NULL;
>> struct net_bridge_port *p;
>>
>> @@ -234,8 +235,11 @@ void br_flood(struct net_bridge *br, struct sk_buff *skb,
>> continue;
>>
>> prev = maybe_deliver(prev, p, skb, local_orig);
>> - if (IS_ERR(prev))
>> + if (IS_ERR(prev)) {
>> + WARN_ON_ONCE(PTR_ERR(prev) != -ENOMEM);
>
> I don't think we want to see a stack trace just because someone forgot
> to adjust the drop reason to the error code. Maybe just set it to
> 'NOMEM' if error code is '-ENOMEM', otherwise to 'NOT_SPECIFIED'.
>
+1
