From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Fri, 23 Oct 2015 05:52:58 +0000 (+0200)
Subject: xfrm: Increment statistic counter on inner mode error
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=cb866e3298cd7412503fc7e2c265753c853fab9d;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

xfrm: Increment statistic counter on inner mode error

Increment the LINUX_MIB_XFRMINSTATEMODEERROR statistic counter
to notify about dropped packets if we fail to fetch a inner mode.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---

diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c
index 60ce7014e1b0..ad7f5b3f9b61 100644
--- a/net/xfrm/xfrm_input.c
+++ b/net/xfrm/xfrm_input.c
@@ -330,8 +330,10 @@ resume:
 
 		if (x->sel.family == AF_UNSPEC) {
 			inner_mode = xfrm_ip2inner_mode(x, XFRM_MODE_SKB_CB(skb)->protocol);
-			if (inner_mode == NULL)
+			if (inner_mode == NULL) {
+				XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATEMODEERROR);
 				goto drop;
+			}
 		}
 
 		if (inner_mode->input(x, skb)) {