diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2012-12-06 15:47:38 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-01-03 13:01:29 +0100 |
| commit | 458f4f9e960b9a3b674c4b87d996eef186b1fe83 (patch) | |
| tree | febf655badc2a045b3aaaf63271226729c76e325 /include/net/regulatory.h | |
| parent | 379b82f4c9dc6e67bf61aa61b096c06a2f320f60 (diff) | |
| download | lwn-458f4f9e960b9a3b674c4b87d996eef186b1fe83.tar.gz lwn-458f4f9e960b9a3b674c4b87d996eef186b1fe83.zip | |
regulatory: use RCU to protect global and wiphy regdomains
To simplify the locking and not require cfg80211_mutex
(which nl80211 uses to access the global regdomain) and
also to make it possible for drivers to access their
wiphy->regd safely, use RCU to protect these pointers.
Acked-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net/regulatory.h')
| -rw-r--r-- | include/net/regulatory.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/regulatory.h b/include/net/regulatory.h index 7dcaa2794fde..96b0f07cb85b 100644 --- a/include/net/regulatory.h +++ b/include/net/regulatory.h @@ -18,6 +18,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include <linux/rcupdate.h> /** * enum environment_cap - Environment parsed from country IE @@ -101,6 +102,7 @@ struct ieee80211_reg_rule { }; struct ieee80211_regdomain { + struct rcu_head rcu_head; u32 n_reg_rules; char alpha2[2]; u8 dfs_region; |