cfg80211: allow drivers that agree on regulatory to agree
This allows drivers that agree on regulatory to share their
regulatory domain.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 7ecb903..5456534 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1157,6 +1157,16 @@
return 0;
return -EALREADY;
}
+
+ /*
+ * This would happen if you unplug and plug your card
+ * back in or if you add a new device for which the previously
+ * loaded card also agrees on the regulatory domain.
+ */
+ if (last_request->initiator == REGDOM_SET_BY_DRIVER &&
+ alpha2_equal(cfg80211_regdomain->alpha2, alpha2))
+ return -EALREADY;
+
return REG_INTERSECT;
case REGDOM_SET_BY_USER:
if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE)