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| author | Alexander Aring | 2015-05-22 17:43:54 +0200 |
|---|---|---|
| committer | Marcel Holtmann | 2015-05-23 17:57:08 +0200 |
| commit | c947f7e1e31a708f5a4ea8c1a627bec578cd9223 (patch) | |
| tree | 2b00d3be6c911ec0f8a133499994e4bb185ecb76 /net/ieee802154/nl-mac.c | |
| parent | mac802154: use atomic ops for sequence incrementation (diff) | |
| download | kernel-qcow2-linux-c947f7e1e31a708f5a4ea8c1a627bec578cd9223.tar.gz kernel-qcow2-linux-c947f7e1e31a708f5a4ea8c1a627bec578cd9223.tar.xz kernel-qcow2-linux-c947f7e1e31a708f5a4ea8c1a627bec578cd9223.zip | |
mac802154: remove mib lock
This patch removes the mib lock. The new locking mechanism is to protect
the mib values with the rtnl lock. Note that this isn't always necessary
if we have an interface up the most mib values are readonly (e.g.
address settings). With this behaviour we can remove locking in
hotpath like frame parsing completely. It depends on context if we need
to hold the rtnl lock or not, this makes the callbacks of
ieee802154_mlme_ops unnecessary because these callbacks hols always the
locks.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/ieee802154/nl-mac.c')
| -rw-r--r-- | net/ieee802154/nl-mac.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c index cdc1cc3543f6..ada58a81b753 100644 --- a/net/ieee802154/nl-mac.c +++ b/net/ieee802154/nl-mac.c @@ -97,8 +97,10 @@ static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid, BUG_ON(!phy); get_device(&phy->dev); - short_addr = ops->get_short_addr(dev); - pan_id = ops->get_pan_id(dev); + rtnl_lock(); + short_addr = dev->ieee802154_ptr->short_addr; + pan_id = dev->ieee802154_ptr->pan_id; + rtnl_unlock(); if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) || @@ -244,7 +246,9 @@ int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info) addr.mode = IEEE802154_ADDR_LONG; addr.extended_addr = nla_get_hwaddr( info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]); - addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); + rtnl_lock(); + addr.pan_id = dev->ieee802154_ptr->pan_id; + rtnl_unlock(); ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr, nla_get_shortaddr(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]), @@ -281,7 +285,9 @@ int ieee802154_disassociate_req(struct sk_buff *skb, struct genl_info *info) addr.short_addr = nla_get_shortaddr( info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]); } - addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); + rtnl_lock(); + addr.pan_id = dev->ieee802154_ptr->pan_id; + rtnl_unlock(); ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr, nla_get_u8(info->attrs[IEEE802154_ATTR_REASON])); |