Commit 1a1c116f3dcf removes nlmsg_len calculation in
ibnl_put_attr causing netlink messages to be rejected due
to incorrect length.
Restore the netlink message header length calculation
to include the added attribute.
Fixes: 1a1c116f3dcf ("RDMA/netlink: Simplify the put_msg and put_attr")
Signed-off-by: Shiraz Saleem <shiraz.saleem@xxxxxxxxx>
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@xxxxxxxxx>
---
drivers/infiniband/core/netlink.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c
index e685148..889d091 100644
--- a/drivers/infiniband/core/netlink.c
+++ b/drivers/infiniband/core/netlink.c
@@ -150,10 +150,14 @@ EXPORT_SYMBOL(ibnl_put_msg);
int ibnl_put_attr(struct sk_buff *skb, struct nlmsghdr *nlh,
int len, void *data, int type)
{
+ unsigned char *prev_tail;
+
+ prev_tail = skb_tail_pointer(skb);
if (nla_put(skb, type, len, data)) {
nlmsg_cancel(skb, nlh);
return -EMSGSIZE;
}
+ nlh->nlmsg_len += skb_tail_pointer(skb) - prev_tail;
return 0;
}
EXPORT_SYMBOL(ibnl_put_attr);
--
2.8.3
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