From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Aring Subject: [PATCH bluetooth-next] netdevice: add ieee802154_ptr to net_device Date: Sun, 2 Nov 2014 06:44:54 +0100 Message-ID: <1414907094-9623-1-git-send-email-alex.aring@gmail.com> Cc: kernel@pengutronix.de, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, Alexander Aring , "David S. Miller" To: linux-wpan@vger.kernel.org Return-path: Received: from mail-wi0-f179.google.com ([209.85.212.179]:57243 "EHLO mail-wi0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750745AbaKBFp6 (ORCPT ); Sun, 2 Nov 2014 01:45:58 -0400 Sender: netdev-owner@vger.kernel.org List-ID: This patch adds an ieee802154_ptr to the net_device structure. Furthermore the 802.15.4 subsystem will introduce a nl802154 framework which is similar like the nl80211 framework and a wpan_dev structure. The wpan_dev structure will hold additional net_device attributes like address options which are 802.15.4 specific. In the upcoming nl802154 implementation we will introduce a NL802154_FLAG_NEED_WPAN_DEV like NL80211_FLAG_NEED_WDEV. For this flag an ieee802154_ptr in net_device is needed. Additional we can access the wpan_dev attributes in upper layers like IEEE 802.15.4 6LoWPAN easily. Current solution is a complicated callback interface and getting these values over subif data structure in mac802154. Signed-off-by: Alexander Aring Cc: David S. Miller --- Another option would be to combine ieee80211_ptr and ieee802154_ptr in an union. These pointer can't be used twice at the same time and the union solution will not make the struct net_device bigger. My working repository is bluetooth-next. Marcel will apply all 802.15.4 changes. That's why this patch should go into bluetooth-next. Then I can send new patches which depends on this patch for introducing wpan_dev and nl802154. include/linux/netdevice.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 74fd5d3..c9bcf33 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -57,6 +57,8 @@ struct device; struct phy_device; /* 802.11 specific */ struct wireless_dev; +/* 802.15.4 specific */ +struct wpan_dev; void netdev_set_default_ethtool_ops(struct net_device *dev, const struct ethtool_ops *ops); @@ -1572,6 +1574,7 @@ struct net_device { struct inet6_dev __rcu *ip6_ptr; void *ax25_ptr; struct wireless_dev *ieee80211_ptr; + struct wpan_dev *ieee802154_ptr; /* * Cache lines mostly used on receive path (including eth_type_trans()) -- 2.1.3