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ieee802154: netlink add rtnl lock

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This patch adds rtnl lock hold mechanism while accessing wpan_dev
attributes. Furthermore these attributes should be protected by rtnl
lock and netif_running only.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Alexander Aring
2014-11-09 08:36:57 +01:00
committed by Marcel Holtmann
parent b03c9cccfa
commit 7bea1ea7b4
2 changed files with 12 additions and 4 deletions
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10
net/mac802154/mac_cmd.c
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@@ -39,6 +39,8 @@ static int mac802154_mlme_start_req(struct net_device *dev,
struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
int rc = 0;
ASSERT_RTNL();
BUG_ON(addr->mode != IEEE802154_ADDR_SHORT);
mac802154_dev_set_pan_id(dev, addr->pan_id);
@@ -75,7 +77,8 @@ static int mac802154_set_mac_params(struct net_device *dev,
struct wpan_dev *wpan_dev = &sdata->wpan_dev;
int ret;
mutex_lock(&sdata->local->iflist_mtx);
ASSERT_RTNL();
/* PHY */
wpan_dev->wpan_phy->transmit_power = params->transmit_power;
wpan_dev->wpan_phy->cca_mode = params->cca_mode;
@@ -87,7 +90,6 @@ static int mac802154_set_mac_params(struct net_device *dev,
wpan_dev->csma_retries = params->csma_retries;
wpan_dev->frame_retries = params->frame_retries;
wpan_dev->lbt = params->lbt;
mutex_unlock(&sdata->local->iflist_mtx);
if (local->hw.flags & IEEE802154_HW_TXPOWER) {
ret = drv_set_tx_power(local, params->transmit_power);
@@ -116,7 +118,8 @@ static void mac802154_get_mac_params(struct net_device *dev,
struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
struct wpan_dev *wpan_dev = &sdata->wpan_dev;
mutex_lock(&sdata->local->iflist_mtx);
ASSERT_RTNL();
/* PHY */
params->transmit_power = wpan_dev->wpan_phy->transmit_power;
params->cca_mode = wpan_dev->wpan_phy->cca_mode;
@@ -128,7 +131,6 @@ static void mac802154_get_mac_params(struct net_device *dev,
params->csma_retries = wpan_dev->csma_retries;
params->frame_retries = wpan_dev->frame_retries;
params->lbt = wpan_dev->lbt;
mutex_unlock(&sdata->local->iflist_mtx);
}
static struct ieee802154_llsec_ops mac802154_llsec_ops = {