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| author | Alexander Aring <alex.aring@gmail.com> | 2014-11-09 08:36:57 +0100 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2014-11-09 19:50:29 +0100 |
| commit | 7bea1ea7b4c16af7c9263648e10f7edc88e5fc21 (patch) | |
| tree | 8092b084c39e45226260d031c9e4d477abbeed0a /net/mac802154/mac_cmd.c | |
| parent | b03c9cccfa808f1b314097b162a36c3937cb818e (diff) | |
| download | linux-stable-7bea1ea7b4c16af7c9263648e10f7edc88e5fc21.tar.gz linux-stable-7bea1ea7b4c16af7c9263648e10f7edc88e5fc21.tar.bz2 linux-stable-7bea1ea7b4c16af7c9263648e10f7edc88e5fc21.zip | |
ieee802154: netlink add rtnl lock
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>
Diffstat (limited to 'net/mac802154/mac_cmd.c')
| -rw-r--r-- | net/mac802154/mac_cmd.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/net/mac802154/mac_cmd.c b/net/mac802154/mac_cmd.c index b8bd95263aab..6aacb1816889 100644 --- a/net/mac802154/mac_cmd.c +++ b/net/mac802154/mac_cmd.c @@ -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 = { |