diff options
Diffstat (limited to 'drivers/net/wireless/mac80211_hwsim.c')
| -rw-r--r-- | drivers/net/wireless/mac80211_hwsim.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 3d8e17bb8a10..7de92af2af02 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -552,7 +552,7 @@ struct mac80211_hwsim_data { bool ps_poll_pending; struct dentry *debugfs; - uintptr_t pending_cookie; + atomic_t pending_cookie; struct sk_buff_head pending; /* packets pending */ /* * Only radios in the same group can communicate together (the @@ -1136,8 +1136,7 @@ static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw, goto nla_put_failure; /* We create a cookie to identify this skb */ - data->pending_cookie++; - cookie = data->pending_cookie; + cookie = atomic_inc_return(&data->pending_cookie); info->rate_driver_data[0] = (void *)cookie; if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD)) goto nla_put_failure; @@ -3120,6 +3119,7 @@ static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2, const u8 *src; unsigned int hwsim_flags; int i; + unsigned long flags; bool found = false; if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] || @@ -3144,18 +3144,20 @@ static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2, goto out; /* look for the skb matching the cookie passed back from user */ + spin_lock_irqsave(&data2->pending.lock, flags); skb_queue_walk_safe(&data2->pending, skb, tmp) { - u64 skb_cookie; + uintptr_t skb_cookie; txi = IEEE80211_SKB_CB(skb); - skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0]; + skb_cookie = (uintptr_t)txi->rate_driver_data[0]; if (skb_cookie == ret_skb_cookie) { - skb_unlink(skb, &data2->pending); + __skb_unlink(skb, &data2->pending); found = true; break; } } + spin_unlock_irqrestore(&data2->pending.lock, flags); /* not found */ if (!found) |