From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
To: johannes@sipsolutions.net
Cc: linux-wireless@vger.kernel.org,
"Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Subject: [PATCH 07/19] cfg80211: process driver regulatory requests on its own
Date: Tue, 5 Nov 2013 09:18:05 -0800 [thread overview]
Message-ID: <1383671897-7746-8-git-send-email-mcgrof@do-not-panic.com> (raw)
In-Reply-To: <1383671897-7746-1-git-send-email-mcgrof@do-not-panic.com>
This makes the code easier to read and follow.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
---
net/wireless/reg.c | 103 ++++++++++++++++++++++++++++++++++++++++++++---------
1 file changed, 86 insertions(+), 17 deletions(-)
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index ed893ab..bf2ef37 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1338,6 +1338,7 @@ get_reg_request_treatment(struct wiphy *wiphy,
switch (pending_request->initiator) {
case NL80211_REGDOM_SET_BY_CORE:
case NL80211_REGDOM_SET_BY_USER:
+ case NL80211_REGDOM_SET_BY_DRIVER:
return REG_REQ_IGNORE;
case NL80211_REGDOM_SET_BY_COUNTRY_IE:
if (reg_request_cell_base(lr)) {
@@ -1372,23 +1373,6 @@ get_reg_request_treatment(struct wiphy *wiphy,
return REG_REQ_ALREADY_SET;
}
return REG_REQ_OK;
- case NL80211_REGDOM_SET_BY_DRIVER:
- if (lr->initiator == NL80211_REGDOM_SET_BY_CORE) {
- if (regdom_changes(pending_request->alpha2))
- return REG_REQ_OK;
- return REG_REQ_ALREADY_SET;
- }
-
- /*
- * 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 (lr->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
- !regdom_changes(pending_request->alpha2))
- return REG_REQ_ALREADY_SET;
-
- return REG_REQ_INTERSECT;
}
return REG_REQ_IGNORE;
@@ -1514,6 +1498,89 @@ reg_process_hint_user(struct regulatory_request *user_request)
return REG_REQ_OK;
}
+static enum reg_request_treatment
+__reg_process_hint_driver(struct regulatory_request *driver_request)
+{
+ struct regulatory_request *lr = get_last_request();
+
+ if (lr->initiator == NL80211_REGDOM_SET_BY_CORE) {
+ if (regdom_changes(driver_request->alpha2))
+ return REG_REQ_OK;
+ return REG_REQ_ALREADY_SET;
+ }
+
+ /*
+ * 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 (lr->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
+ !regdom_changes(driver_request->alpha2))
+ return REG_REQ_ALREADY_SET;
+
+ return REG_REQ_INTERSECT;
+}
+
+/**
+ * reg_process_hint_driver - process driver regulatory requests
+ * @driver_request: a pending driver regulatory request
+ *
+ * The wireless subsystem can use this function to process
+ * a regulatory request issued by an 802.11 driver.
+ *
+ * Returns one of the different reg request treatment values.
+ */
+static enum reg_request_treatment
+reg_process_hint_driver(struct wiphy *wiphy,
+ struct regulatory_request *driver_request)
+{
+ const struct ieee80211_regdomain *regd;
+ enum reg_request_treatment treatment;
+ struct regulatory_request *lr;
+
+ treatment = __reg_process_hint_driver(driver_request);
+
+ switch (treatment) {
+ case REG_REQ_OK:
+ break;
+ case REG_REQ_IGNORE:
+ kfree(driver_request);
+ return treatment;
+ case REG_REQ_INTERSECT:
+ /* fall through */
+ case REG_REQ_ALREADY_SET:
+ regd = reg_copy_regd(get_cfg80211_regdom());
+ if (IS_ERR(regd)) {
+ kfree(driver_request);
+ return REG_REQ_IGNORE;
+ }
+ rcu_assign_pointer(wiphy->regd, regd);
+ }
+
+ lr = get_last_request();
+ if (lr != &core_request_world && lr)
+ kfree_rcu(lr, rcu_head);
+
+ driver_request->intersect = treatment == REG_REQ_INTERSECT;
+ driver_request->processed = false;
+ rcu_assign_pointer(last_request, driver_request);
+
+ /*
+ * Since CRDA will not be called in this case as we already
+ * have applied the requested regulatory domain before we just
+ * inform userspace we have processed the request
+ */
+ if (treatment == REG_REQ_ALREADY_SET) {
+ nl80211_send_reg_change_event(driver_request);
+ reg_set_request_processed();
+ return treatment;
+ }
+
+ if (call_crda(driver_request->alpha2))
+ return REG_REQ_IGNORE;
+ return REG_REQ_OK;
+}
+
/**
* __regulatory_hint - hint to the wireless core a regulatory domain
* @wiphy: if the hint comes from country information from an AP, this
@@ -1637,6 +1704,8 @@ static void reg_process_hint(struct regulatory_request *reg_request)
schedule_delayed_work(®_timeout, msecs_to_jiffies(3142));
return;
case NL80211_REGDOM_SET_BY_DRIVER:
+ treatment = reg_process_hint_driver(wiphy, reg_request);
+ break;
case NL80211_REGDOM_SET_BY_COUNTRY_IE:
treatment = __regulatory_hint(wiphy, reg_request);
break;
--
1.8.4.rc3
next prev parent reply other threads:[~2013-11-05 17:17 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-05 17:17 [PATCH 00/19] cfg80211: regulatory updates Luis R. Rodriguez
2013-11-05 17:17 ` [PATCH 01/19] cfg80211: enforce disabling channels by custom or strict settings Luis R. Rodriguez
2013-11-06 10:15 ` Johannes Berg
2013-11-06 16:54 ` Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 02/19] cfg80211: force WIPHY_FLAG_CUSTOM_REGULATORY on wiphy_apply_custom_regulatory() Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 03/19] cfg80211: check regulatory request alpha2 early Luis R. Rodriguez
2013-11-06 10:17 ` Johannes Berg
2013-11-06 16:39 ` Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 04/19] cfg80211: remove second argument from reg_process_hint() Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 05/19] cfg80211: processing core regulatory hints on its own Luis R. Rodriguez
2013-11-06 10:24 ` Johannes Berg
2013-11-06 10:26 ` Johannes Berg
2013-11-06 16:35 ` Luis R. Rodriguez
2013-11-07 0:47 ` Julian Calaby
2013-11-11 14:41 ` Johannes Berg
2013-11-05 17:18 ` [PATCH 06/19] cfg80211: process user regulatory requests " Luis R. Rodriguez
2013-11-05 17:18 ` Luis R. Rodriguez [this message]
2013-11-05 17:18 ` [PATCH 08/19] cfg80211: process country IE regulatory requests on their own Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 09/19] cfg80211: process non country IE conflicting first Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 10/19] cfg80211: add helper for kfree'ing last_request Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 11/19] cfg80211: add helper for kfree'ing and assigning last_request Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 12/19] cfg80211: add helper for calling CRDA Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 13/19] cfg80211: allow only the core to request to update the world regdom Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 14/19] cfg80211: move core reg_notfier() check to source Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 15/19] cfg80211: pass the last_request to __set_regdom() Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 16/19] cfg80211: set core regulatory updates on its own Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 17/19] cfg80211: set user " Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 18/19] cfg80211: set driver " Luis R. Rodriguez
2013-11-05 17:18 ` [PATCH 19/19] cfg80211: rename __set_regdom() to reg_set_rd_country_ie() Luis R. Rodriguez
2013-11-11 14:50 ` [PATCH 00/19] cfg80211: regulatory updates Johannes Berg
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