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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 11/19] cfg80211: add helper for kfree'ing and assigning last_request
Date: Tue,  5 Nov 2013 09:18:09 -0800	[thread overview]
Message-ID: <1383671897-7746-12-git-send-email-mcgrof@do-not-panic.com> (raw)
In-Reply-To: <1383671897-7746-1-git-send-email-mcgrof@do-not-panic.com>

This enforces proper RCU APIs accross the code.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
---
 net/wireless/reg.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 30e813f..ddccc9a 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -212,6 +212,12 @@ static void reg_kfree_last_request(void)
 		kfree_rcu(lr, rcu_head);
 }
 
+static void reg_update_last_request(struct regulatory_request *request)
+{
+	reg_kfree_last_request();
+	rcu_assign_pointer(last_request, request);
+}
+
 static void reset_regdomains(bool full_reset,
 			     const struct ieee80211_regdomain *new_regdom)
 {
@@ -238,8 +244,7 @@ static void reset_regdomains(bool full_reset,
 	if (!full_reset)
 		return;
 
-	reg_kfree_last_request();
-	rcu_assign_pointer(last_request, &core_request_world);
+	reg_update_last_request(&core_request_world);
 }
 
 /*
@@ -1364,8 +1369,7 @@ reg_process_hint_core(struct regulatory_request *core_request)
 	core_request->intersect = false;
 	core_request->processed = false;
 
-	reg_kfree_last_request();
-	rcu_assign_pointer(last_request, core_request);
+	reg_update_last_request(core_request);
 
 	if (call_crda(core_request->alpha2))
 		return REG_REQ_IGNORE;
@@ -1432,8 +1436,7 @@ reg_process_hint_user(struct regulatory_request *user_request)
 	user_request->intersect = treatment == REG_REQ_INTERSECT;
 	user_request->processed = false;
 
-	reg_kfree_last_request();
-	rcu_assign_pointer(last_request, user_request);
+	reg_update_last_request(user_request);
 
 	user_alpha2[0] = user_request->alpha2[0];
 	user_alpha2[1] = user_request->alpha2[1];
@@ -1505,8 +1508,7 @@ reg_process_hint_driver(struct wiphy *wiphy,
 	driver_request->intersect = treatment == REG_REQ_INTERSECT;
 	driver_request->processed = false;
 
-	reg_kfree_last_request();
-	rcu_assign_pointer(last_request, driver_request);
+	reg_update_last_request(driver_request);
 
 	/*
 	 * Since CRDA will not be called in this case as we already
@@ -1604,8 +1606,7 @@ reg_process_hint_country_ie(struct wiphy *wiphy,
 	country_ie_request->intersect = false;
 	country_ie_request->processed = false;
 
-	reg_kfree_last_request();
-	rcu_assign_pointer(last_request, country_ie_request);
+	reg_update_last_request(country_ie_request);
 
 	if (call_crda(country_ie_request->alpha2))
 		return REG_REQ_IGNORE;
-- 
1.8.4.rc3


  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 ` [PATCH 07/19] cfg80211: process driver " Luis R. Rodriguez
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 ` Luis R. Rodriguez [this message]
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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