xfrm: removes a superfluous check and add a statistic

Remove the check if x->km.state equal to XFRM_STATE_VALID in
xfrm_state_check_expire(), which will be done before call
xfrm_state_check_expire().

add a LINUX_MIB_XFRMOUTSTATEINVALID statistic to record the
outbound error due to invalid xfrm state.

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h
index fdfba235f9f1..b49eab89c9fd 100644
--- a/include/uapi/linux/snmp.h
+++ b/include/uapi/linux/snmp.h
@@ -278,6 +278,7 @@ enum
         LINUX_MIB_XFRMOUTPOLDEAD,               /* XfrmOutPolDead */
         LINUX_MIB_XFRMOUTPOLERROR,              /* XfrmOutPolError */
         LINUX_MIB_XFRMFWDHDRERROR,              /* XfrmFwdHdrError*/
+        LINUX_MIB_XFRMOUTSTATEINVALID,          /* XfrmOutStateInvalid */
         __LINUX_MIB_XFRMMAX
 };