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nl80211: Convert sched_scan_req pointer to RCU pointer

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Because of possible races when accessing sched_scan_req pointer in
rdev, the sched_scan_req is converted to RCU pointer.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Jukka Rissanen
2014-12-15 13:25:38 +02:00
committed by Johannes Berg
parent 0f8b824561
commit 31a60ed1e9
5 changed files with 29 additions and 17 deletions
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2
include/net/cfg80211.h
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@@ -1516,6 +1516,7 @@ struct cfg80211_match_set {
* @mac_addr_mask: MAC address mask used with randomisation, bits that
* are 0 in the mask should be randomised, bits that are 1 should
* be taken from the @mac_addr
* @rcu_head: RCU callback used to free the struct
*/
struct cfg80211_sched_scan_request {
struct cfg80211_ssid *ssids;
@@ -1537,6 +1538,7 @@ struct cfg80211_sched_scan_request {
struct wiphy *wiphy;
struct net_device *dev;
unsigned long scan_start;
struct rcu_head rcu_head;
/* keep last */
struct ieee80211_channel *channels[0];