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| author | Jarno Rajahalme <jrajahalme@nicira.com> | 2014-04-28 17:31:25 -0700 |
|---|---|---|
| committer | Jarno Rajahalme <jrajahalme@nicira.com> | 2014-04-28 17:31:25 -0700 |
| commit | 0141456733976ab0a8204494dd874b74aa686c9c (patch) | |
| tree | 17e25618a422e2d73904b9fbe0146f6eb8aff4a2 /include/linux | |
| parent | ea96b766c2092609fe850e9d5f6392252a2f5fa2 (diff) | |
| download | openvswitch-0141456733976ab0a8204494dd874b74aa686c9c.tar.gz | |
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 <jrajahalme@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/openvswitch.h | 1 |
1 files changed, 1 insertions, 0 deletions
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. */ |