netdev - Re: [PATCH net 2/3] net/xfrm: Add inner_ipproto into sec

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Date:   Wed, 28 Apr 2021 20:50:06 -0500
From:   Huy Nguyen <huyn@...dia.com>
To:     Jakub Kicinski <kuba@...nel.org>, Saeed Mahameed <saeed@...nel.org>
CC:     "David S. Miller" <davem@...emloft.net>, <netdev@...r.kernel.org>,
        "Cc : Steffen Klassert" <steffen.klassert@...unet.com>,
        Raed Salem <raeds@...dia.com>
Subject: Re: [PATCH net 2/3] net/xfrm: Add inner_ipproto into sec_path

I fixed. Thank you. Saeed will resubmit.

On 4/15/2021 12:00 PM, Jakub Kicinski wrote:
> On Wed, 14 Apr 2021 16:25:39 -0700 Saeed Mahameed wrote:
>> +static void get_inner_ipproto(struct sk_buff *skb, struct sec_path *sp)
>> +{
>> +	const struct ethhdr *eth;
>> +
>> +	if (!skb->inner_protocol)
>> +		return;
>> +
>> +	if (skb->inner_protocol_type == ENCAP_TYPE_IPPROTO) {
>> +		sp->inner_ipproto = skb->inner_protocol;
>> +		return;
>> +	}
>> +
>> +	if (skb->inner_protocol_type != ENCAP_TYPE_ETHER)
>> +		return;
>> +
>> +	eth = (struct ethhdr *)skb_inner_mac_header(skb);
>> +
>> +	switch (eth->h_proto) {
>> +	case ntohs(ETH_P_IPV6):
>> +		sp->inner_ipproto = inner_ipv6_hdr(skb)->nexthdr;
>> +		break;
>> +	case ntohs(ETH_P_IP):
>> +		sp->inner_ipproto = inner_ip_hdr(skb)->protocol;
>> +		break;
>> +	default:
>> +		return;
>> +	}
>> +}
> Bunch of sparse warnings here, please check.