Re: [ovs-dev] [PATCH branch-2.7 07/14] lib: Indicate if netlink message had labels.

[Joe Stringer]

On 18 April 2017 at 17:09, Joe Stringer  wrote:
> From: Jarno Rajahalme 
>
> Conntrack update events include labels only if they have changed.
> Record the presence of labels in the netlink message to OVS internal
> representation, so that the user may keep the old labels when an
> update does not modify them.
>
> Fixes: 6830a0c0e6bf ("netlink-conntrack: New module.")
> Signed-off-by: Jarno Rajahalme 
> Acked-by: Joe Stringer 
> ---

I opted to drop this library change from the backport.
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[ovs-dev] [PATCH branch-2.7 07/14] lib: Indicate if netlink message had labels.

[Joe Stringer]

From: Jarno Rajahalme 

Conntrack update events include labels only if they have changed.
Record the presence of labels in the netlink message to OVS internal
representation, so that the user may keep the old labels when an
update does not modify them.

Fixes: 6830a0c0e6bf ("netlink-conntrack: New module.")
Signed-off-by: Jarno Rajahalme 
Acked-by: Joe Stringer 
---
 lib/ct-dpif.h   | 1 +
 lib/netlink-conntrack.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/lib/ct-dpif.h b/lib/ct-dpif.h
index 5da3c2c8e3d1..e8e159a75f3a 100644
--- a/lib/ct-dpif.h
+++ b/lib/ct-dpif.h
@@ -163,6 +163,7 @@ struct ct_dpif_entry {
 struct ct_dpif_protoinfo protoinfo;
 
 ovs_u128 labels;
+bool have_labels;
 uint32_t status;
 /* Timeout for this entry in seconds */
 uint32_t timeout;
diff --git a/lib/netlink-conntrack.c b/lib/netlink-conntrack.c
index 2aadb1e16f75..f0e2aeac8e62 100644
--- a/lib/netlink-conntrack.c
+++ b/lib/netlink-conntrack.c
@@ -780,6 +780,7 @@ nl_ct_attrs_to_ct_dpif_entry(struct ct_dpif_entry *entry,
 entry->mark = ntohl(nl_attr_get_be32(attrs[CTA_MARK]));
 }
 if (attrs[CTA_LABELS]) {
+entry->have_labels = true;
 memcpy(>labels, nl_attr_get(attrs[CTA_LABELS]),
MIN(sizeof entry->labels, nl_attr_get_size(attrs[CTA_LABELS])));
 }
-- 
2.11.1

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