Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...

[karo-tx-linux.git] / net / nfc / netlink.c

diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 8937664674fae623f4ec8e27fad62e5d2e8c9ec4..f1829f6ae9c552fab7b2090fddb2283511b7f4d5 100644 (file)
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -188,6 +188,37 @@ free_msg:
        return -EMSGSIZE;
 }
 
+int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx)
+{
+       struct sk_buff *msg;
+       void *hdr;
+
+       msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+       if (!msg)
+               return -ENOMEM;
+
+       hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+                         NFC_EVENT_TARGET_LOST);
+       if (!hdr)
+               goto free_msg;
+
+       if (nla_put_string(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev)) ||
+           nla_put_u32(msg, NFC_ATTR_TARGET_INDEX, target_idx))
+               goto nla_put_failure;
+
+       genlmsg_end(msg, hdr);
+
+       genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+
+       return 0;
+
+nla_put_failure:
+       genlmsg_cancel(msg, hdr);
+free_msg:
+       nlmsg_free(msg);
+       return -EMSGSIZE;
+}
+
 int nfc_genl_device_added(struct nfc_dev *dev)
 {
        struct sk_buff *msg;