net/filter: Fix the output information for command 'info network'

The properties of netfilter object could be changed by 'qom-set'
command, but the output of 'info network' command is not updated,
because it got the old information through nf->info_str, it will
not be updated while we change the value of netfilter's property.

Here we split a helper function that could collect the output
information for filter, and also remove the useless member
'info_str' from struct NetFilterState.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Yang Hongyang <hongyang.yang@easystack.cn>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/include/net/filter.h b/include/net/filter.h
index 2deda362a6..56399763cc 100644
--- a/include/net/filter.h
+++ b/include/net/filter.h
@@ -55,7 +55,6 @@ struct NetFilterState {
     char *netdev_id;
     NetClientState *netdev;
     NetFilterDirection direction;
-    char info_str[256];
     QTAILQ_ENTRY(NetFilterState) next;
 };