netdev - [PATCH net-next 2/2] net/sched: act_ct: Use pskb_network_may

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Date:   Wed,  4 Mar 2020 13:49:39 +0200
From:   Paul Blakey <paulb@...lanox.com>
To:     Paul Blakey <paulb@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Oz Shlomo <ozsh@...lanox.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Vlad Buslov <vladbu@...lanox.com>,
        David Miller <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Jiri Pirko <jiri@...lanox.com>, Roi Dayan <roid@...lanox.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Jamal Hadi Salim <jhs@...atatu.com>
Subject: [PATCH net-next 2/2] net/sched: act_ct: Use pskb_network_may_pull()

To make the filler functions more generic, use network
relative skb pulling.

Signed-off-by: Paul Blakey <paulb@...lanox.com>
---
 net/sched/act_ct.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c
index f434db7..23eba61 100644
--- a/net/sched/act_ct.c
+++ b/net/sched/act_ct.c
@@ -195,7 +195,7 @@ static void tcf_ct_flow_table_process_conn(struct tcf_ct_flow_table *ct_ft,
 	unsigned int thoff;
 	struct iphdr *iph;
 
-	if (!pskb_may_pull(skb, sizeof(*iph)))
+	if (!pskb_network_may_pull(skb, sizeof(*iph)))
 		return false;
 
 	iph = ip_hdr(skb);
@@ -212,9 +212,9 @@ static void tcf_ct_flow_table_process_conn(struct tcf_ct_flow_table *ct_ft,
 	if (iph->ttl <= 1)
 		return false;
 
-	if (!pskb_may_pull(skb, iph->protocol == IPPROTO_TCP ?
-			   thoff + sizeof(struct tcphdr) :
-			   thoff + sizeof(*ports)))
+	if (!pskb_network_may_pull(skb, iph->protocol == IPPROTO_TCP ?
+					thoff + sizeof(struct tcphdr) :
+					thoff + sizeof(*ports)))
 		return false;
 
 	iph = ip_hdr(skb);
@@ -241,7 +241,7 @@ static void tcf_ct_flow_table_process_conn(struct tcf_ct_flow_table *ct_ft,
 	struct ipv6hdr *ip6h;
 	unsigned int thoff;
 
-	if (!pskb_may_pull(skb, sizeof(*ip6h)))
+	if (!pskb_network_may_pull(skb, sizeof(*ip6h)))
 		return false;
 
 	ip6h = ipv6_hdr(skb);
@@ -254,9 +254,9 @@ static void tcf_ct_flow_table_process_conn(struct tcf_ct_flow_table *ct_ft,
 		return false;
 
 	thoff = sizeof(*ip6h);
-	if (!pskb_may_pull(skb, ip6h->nexthdr == IPPROTO_TCP ?
-			   thoff + sizeof(struct tcphdr) :
-			   thoff + sizeof(*ports)))
+	if (!pskb_network_may_pull(skb, ip6h->nexthdr == IPPROTO_TCP ?
+					thoff + sizeof(struct tcphdr) :
+					thoff + sizeof(*ports)))
 		return false;
 
 	ip6h = ipv6_hdr(skb);
-- 
1.8.3.1