linux-kernel - Re: [PATCH net-next v7 12/12] net: vxlan: use kfree_skb_reason() in encap_bypass_if

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Message-ID: <CADxym3Z4kyVh2W60ub2QtzcRXHCmFfhmprht0_p_bBdbiJVM0A@mail.gmail.com>
Date: Mon, 14 Oct 2024 20:30:57 +0800
From: Menglong Dong <menglong8.dong@...il.com>
To: Ido Schimmel <idosch@...dia.com>
Cc: kuba@...nel.org, aleksander.lobakin@...el.com, horms@...nel.org, 
	davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com, 
	dsahern@...nel.org, dongml2@...natelecom.cn, amcohen@...dia.com, 
	gnault@...hat.com, bpoirier@...dia.com, b.galvani@...il.com, 
	razor@...ckwall.org, petrm@...dia.com, linux-kernel@...r.kernel.org, 
	netdev@...r.kernel.org, Kalesh AP <kalesh-anakkur.purayil@...adcom.com>
Subject: Re: [PATCH net-next v7 12/12] net: vxlan: use kfree_skb_reason() in encap_bypass_if_local()

On Sun, Oct 13, 2024 at 9:24 PM Ido Schimmel <idosch@...dia.com> wrote:
>
> On Wed, Oct 09, 2024 at 10:28:30AM +0800, Menglong Dong wrote:
> > Replace kfree_skb() with kfree_skb_reason() in encap_bypass_if_local, and
> > no new skb drop reason is added in this commit.
> >
> > Signed-off-by: Menglong Dong <dongml2@...natelecom.cn>
> > Reviewed-by: Simon Horman <horms@...nel.org>
> > Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@...adcom.com>
> > ---
> >  drivers/net/vxlan/vxlan_core.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
> > index da4de19d0331..f7e94bb8e30e 100644
> > --- a/drivers/net/vxlan/vxlan_core.c
> > +++ b/drivers/net/vxlan/vxlan_core.c
> > @@ -2341,7 +2341,7 @@ static int encap_bypass_if_local(struct sk_buff *skb, struct net_device *dev,
> >                       DEV_STATS_INC(dev, tx_errors);
> >                       vxlan_vnifilter_count(vxlan, vni, NULL,
> >                                             VXLAN_VNI_STATS_TX_ERRORS, 0);
> > -                     kfree_skb(skb);
> > +                     kfree_skb_reason(skb, SKB_DROP_REASON_VXLAN_INVALID_HDR);
>
> Shouldn't this be SKB_DROP_REASON_VXLAN_VNI_NOT_FOUND ?
>

Enn.....It should be SKB_DROP_REASON_VXLAN_VNI_NOT_FOUND. I even wonder
why I used SKB_DROP_REASON_VXLAN_INVALID_HDR here.

It seems that we need a new version, and I'll follow you comment
in the other patches of this series too.

Thanks!
Menglong Dong

> >
> >                       return -ENOENT;
> >               }
> > --
> > 2.39.5
> >