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drbd: Don't use empty nested netlink attributes

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Before mainline commit ea5693cc (v2.6.29-rc1), empty nested netlink attributes
were not allowed.  Fix that by leaving out nested attributes if they are empty
and by allowing the top-level attributes to be missing.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Andreas Gruenbacher 2011-05-24 14:18:31 +02:00 committed by Philipp Reisner
parent 1e2a2551ee
commit c75b9b10e7
1 changed files with 3 additions and 3 deletions
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6
drivers/block/drbd/drbd_nl.c
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@ -1155,7 +1155,7 @@ int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info)
set_disk_conf_defaults(new_disk_conf);
err = disk_conf_from_attrs_for_change(new_disk_conf, info);
if (err) {
if (err && err != -ENOMSG) {
retcode = ERR_MANDATORY_TAG;
drbd_msg_put_info(from_attrs_err_to_txt(err));
}
@ -1902,7 +1902,7 @@ int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info)
set_net_conf_defaults(new_conf);
err = net_conf_from_attrs_for_change(new_conf, info);
if (err) {
if (err && err != -ENOMSG) {
retcode = ERR_MANDATORY_TAG;
drbd_msg_put_info(from_attrs_err_to_txt(err));
goto fail;
@ -2337,7 +2337,7 @@ int drbd_adm_resource_opts(struct sk_buff *skb, struct genl_info *info)
set_res_opts_defaults(&res_opts);
err = res_opts_from_attrs(&res_opts, info);
if (err) {
if (err && err != -ENOMSG) {
retcode = ERR_MANDATORY_TAG;
drbd_msg_put_info(from_attrs_err_to_txt(err));
goto fail;