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authorJohannes Berg <johannes.berg@intel.com>2012-12-06 18:47:38 +0400
committerJohannes Berg <johannes.berg@intel.com>2013-01-03 16:01:29 +0400
commit458f4f9e960b9a3b674c4b87d996eef186b1fe83 (patch)
treefebf655badc2a045b3aaaf63271226729c76e325 /net/wireless/reg.h
parent379b82f4c9dc6e67bf61aa61b096c06a2f320f60 (diff)
downloadlinux-458f4f9e960b9a3b674c4b87d996eef186b1fe83.tar.xz
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 'net/wireless/reg.h')
-rw-r--r--net/wireless/reg.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index d391b50d2829..af2d5f8a5d82 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -16,7 +16,7 @@
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-extern const struct ieee80211_regdomain *cfg80211_regdomain;
+extern const struct ieee80211_regdomain __rcu *cfg80211_regdomain;
bool is_world_regdom(const char *alpha2);
bool reg_supported_dfs_region(u8 dfs_region);