diff options
Diffstat (limited to 'net/dccp/feat.c')
| -rw-r--r-- | net/dccp/feat.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/net/dccp/feat.c b/net/dccp/feat.c index 2ec2cd117699..faade82856fe 100644 --- a/net/dccp/feat.c +++ b/net/dccp/feat.c @@ -279,6 +279,25 @@ void dccp_feat_list_purge(struct list_head *fn_list) } EXPORT_SYMBOL_GPL(dccp_feat_list_purge); +/* generate @to as full clone of @from - @to must not contain any nodes */ +int dccp_feat_clone_list(struct list_head const *from, struct list_head *to) +{ + struct dccp_feat_entry *entry, *new; + + INIT_LIST_HEAD(to); + list_for_each_entry(entry, from, node) { + new = dccp_feat_clone_entry(entry); + if (new == NULL) + goto cloning_failed; + list_add_tail(&new->node, to); + } + return 0; + +cloning_failed: + dccp_feat_list_purge(to); + return -ENOMEM; +} + int dccp_feat_change(struct dccp_minisock *dmsk, u8 type, u8 feature, u8 *val, u8 len, gfp_t gfp) { |