[XFRM]: Support to increment packet dropping statistics.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 1 deletions

diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index 26fa0cb78c94..867484a046af 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -69,10 +69,13 @@ static int xfrm_output_one(struct sk_buff *skb, int err)
                 err = x->type->output(x, skb);
 
 resume:
-                if (err)
+                if (err) {
+                        XFRM_INC_STATS(LINUX_MIB_XFRMOUTSTATEPROTOERROR);
                         goto error_nolock;
+                }
 
                 if (!(skb->dst = dst_pop(dst))) {
+                        XFRM_INC_STATS(LINUX_MIB_XFRMOUTERROR);
                         err = -EHOSTUNREACH;
                         goto error_nolock;
                 }
@@ -167,6 +170,7 @@ int xfrm_output(struct sk_buff *skb)
         if (skb->ip_summed == CHECKSUM_PARTIAL) {
                 err = skb_checksum_help(skb);
                 if (err) {
+                        XFRM_INC_STATS(LINUX_MIB_XFRMOUTERROR);
                         kfree_skb(skb);
                         return err;
                 }