From 0141456733976ab0a8204494dd874b74aa686c9c Mon Sep 17 00:00:00 2001 From: Jarno Rajahalme Date: Mon, 28 Apr 2014 17:31:25 -0700 Subject: [PATCH] openvswitch.h: Note that 64 bit ints are 4-aligned. In general, all Netlink 64-bit data may be 4-byte aligned, due to netlink header and attributes being 4-aligned. To avoid unaligned access the data should be copied out of the netlink attribute before access. Signed-off-by: Jarno Rajahalme Acked-by: Jesse Gross --- include/linux/openvswitch.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/openvswitch.h b/include/linux/openvswitch.h index 544c5ba55..8e4b87042 100644 --- a/include/linux/openvswitch.h +++ b/include/linux/openvswitch.h @@ -109,6 +109,7 @@ enum ovs_datapath_attr { #define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1) +/* All 64-bit integers within Netlink messages are 4-byte aligned only. */ struct ovs_dp_stats { __u64 n_hit; /* Number of flow table matches. */ __u64 n_missed; /* Number of flow table misses. */ -- 2.43.0