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mac802154: remove mib lock

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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>
This commit is contained in:
Alexander Aring
2015-05-22 17:43:54 +02:00
committed by Marcel Holtmann
parent 344f8c119d
commit c947f7e1e3
10 changed files with 18 additions and 114 deletions
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50
net/mac802154/mib.c
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@@ -26,56 +26,6 @@
#include "ieee802154_i.h"
#include "driver-ops.h"
void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val)
{
struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
BUG_ON(dev->type != ARPHRD_IEEE802154);
spin_lock_bh(&sdata->mib_lock);
sdata->wpan_dev.short_addr = val;
spin_unlock_bh(&sdata->mib_lock);
}
__le16 mac802154_dev_get_short_addr(const struct net_device *dev)
{
struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
__le16 ret;
BUG_ON(dev->type != ARPHRD_IEEE802154);
spin_lock_bh(&sdata->mib_lock);
ret = sdata->wpan_dev.short_addr;
spin_unlock_bh(&sdata->mib_lock);
return ret;
}
__le16 mac802154_dev_get_pan_id(const struct net_device *dev)
{
struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
__le16 ret;
BUG_ON(dev->type != ARPHRD_IEEE802154);
spin_lock_bh(&sdata->mib_lock);
ret = sdata->wpan_dev.pan_id;
spin_unlock_bh(&sdata->mib_lock);
return ret;
}
void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val)
{
struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
BUG_ON(dev->type != ARPHRD_IEEE802154);
spin_lock_bh(&sdata->mib_lock);
sdata->wpan_dev.pan_id = val;
spin_unlock_bh(&sdata->mib_lock);
}
void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan)
{
struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);