[PATCH RFC ipsec-next 1/2] net: Drop secpath on free after gro merge.

[Steffen Klassert]

With a followup patch, a gro merged skb can have a secpath.
So drop it before freeing or reusing the skb.

Signed-off-by: Steffen Klassert <steffen.klass...@secunet.com>
---
 net/core/dev.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index 56818f7..c9e541e 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4623,6 +4623,7 @@ static gro_result_t napi_skb_finish(gro_result_t ret, 
struct sk_buff *skb)
        case GRO_MERGED_FREE:
                if (NAPI_GRO_CB(skb)->free == NAPI_GRO_FREE_STOLEN_HEAD) {
                        skb_dst_drop(skb);
+                       secpath_put(skb->sp);
                        kmem_cache_free(skbuff_head_cache, skb);
                } else {
                        __kfree_skb(skb);
@@ -4663,6 +4664,7 @@ static void napi_reuse_skb(struct napi_struct *napi, 
struct sk_buff *skb)
        skb->encapsulation = 0;
        skb_shinfo(skb)->gso_type = 0;
        skb->truesize = SKB_TRUESIZE(skb_end_offset(skb));
+       secpath_put(skb->sp);
 
        napi->skb = skb;
 }
-- 
1.9.1