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authorTakashi Iwai <tiwai@suse.de>2014-02-20 01:50:32 -0500
committerTakashi Iwai <tiwai@suse.de>2014-02-20 01:50:32 -0500
commitf31f40be8f82d5eeb4ca084f9ac0f11ca265876b (patch)
tree6fce9ac78045249084d641945e094dcaea72d265 /net/wireless/scan.c
parent13c12dbe3a2ce17227f7ddef652b6a53c78fa51f (diff)
parent895be5b31e5175bef575008aadb4f0a27b850daa (diff)
Merge tag 'asoc-v3.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.14 A few fixes, all driver speccific ones. The DaVinci ones aren't as clear as they should be from the subject lines on the commits but they fix issues which will prevent correct operation in some use cases and only affect that particular driver so are reasonably safe.
Diffstat (limited to 'net/wireless/scan.c')
-rw-r--r--net/wireless/scan.c40
1 files changed, 25 insertions, 15 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index b528e31da2cf..d1ed4aebbbb7 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -161,18 +161,25 @@ static void __cfg80211_bss_expire(struct cfg80211_registered_device *dev,
161 dev->bss_generation++; 161 dev->bss_generation++;
162} 162}
163 163
164void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev) 164void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
165 bool send_message)
165{ 166{
166 struct cfg80211_scan_request *request; 167 struct cfg80211_scan_request *request;
167 struct wireless_dev *wdev; 168 struct wireless_dev *wdev;
169 struct sk_buff *msg;
168#ifdef CONFIG_CFG80211_WEXT 170#ifdef CONFIG_CFG80211_WEXT
169 union iwreq_data wrqu; 171 union iwreq_data wrqu;
170#endif 172#endif
171 173
172 ASSERT_RTNL(); 174 ASSERT_RTNL();
173 175
174 request = rdev->scan_req; 176 if (rdev->scan_msg) {
177 nl80211_send_scan_result(rdev, rdev->scan_msg);
178 rdev->scan_msg = NULL;
179 return;
180 }
175 181
182 request = rdev->scan_req;
176 if (!request) 183 if (!request)
177 return; 184 return;
178 185
@@ -186,18 +193,16 @@ void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev)
186 if (wdev->netdev) 193 if (wdev->netdev)
187 cfg80211_sme_scan_done(wdev->netdev); 194 cfg80211_sme_scan_done(wdev->netdev);
188 195
189 if (request->aborted) { 196 if (!request->aborted &&
190 nl80211_send_scan_aborted(rdev, wdev); 197 request->flags & NL80211_SCAN_FLAG_FLUSH) {
191 } else { 198 /* flush entries from previous scans */
192 if (request->flags & NL80211_SCAN_FLAG_FLUSH) { 199 spin_lock_bh(&rdev->bss_lock);
193 /* flush entries from previous scans */ 200 __cfg80211_bss_expire(rdev, request->scan_start);
194 spin_lock_bh(&rdev->bss_lock); 201 spin_unlock_bh(&rdev->bss_lock);
195 __cfg80211_bss_expire(rdev, request->scan_start);
196 spin_unlock_bh(&rdev->bss_lock);
197 }
198 nl80211_send_scan_done(rdev, wdev);
199 } 202 }
200 203
204 msg = nl80211_build_scan_msg(rdev, wdev, request->aborted);
205
201#ifdef CONFIG_CFG80211_WEXT 206#ifdef CONFIG_CFG80211_WEXT
202 if (wdev->netdev && !request->aborted) { 207 if (wdev->netdev && !request->aborted) {
203 memset(&wrqu, 0, sizeof(wrqu)); 208 memset(&wrqu, 0, sizeof(wrqu));
@@ -211,6 +216,11 @@ void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev)
211 216
212 rdev->scan_req = NULL; 217 rdev->scan_req = NULL;
213 kfree(request); 218 kfree(request);
219
220 if (!send_message)
221 rdev->scan_msg = msg;
222 else
223 nl80211_send_scan_result(rdev, msg);
214} 224}
215 225
216void __cfg80211_scan_done(struct work_struct *wk) 226void __cfg80211_scan_done(struct work_struct *wk)
@@ -221,7 +231,7 @@ void __cfg80211_scan_done(struct work_struct *wk)
221 scan_done_wk); 231 scan_done_wk);
222 232
223 rtnl_lock(); 233 rtnl_lock();
224 ___cfg80211_scan_done(rdev); 234 ___cfg80211_scan_done(rdev, true);
225 rtnl_unlock(); 235 rtnl_unlock();
226} 236}
227 237
@@ -1079,7 +1089,7 @@ int cfg80211_wext_siwscan(struct net_device *dev,
1079 if (IS_ERR(rdev)) 1089 if (IS_ERR(rdev))
1080 return PTR_ERR(rdev); 1090 return PTR_ERR(rdev);
1081 1091
1082 if (rdev->scan_req) { 1092 if (rdev->scan_req || rdev->scan_msg) {
1083 err = -EBUSY; 1093 err = -EBUSY;
1084 goto out; 1094 goto out;
1085 } 1095 }
@@ -1481,7 +1491,7 @@ int cfg80211_wext_giwscan(struct net_device *dev,
1481 if (IS_ERR(rdev)) 1491 if (IS_ERR(rdev))
1482 return PTR_ERR(rdev); 1492 return PTR_ERR(rdev);
1483 1493
1484 if (rdev->scan_req) 1494 if (rdev->scan_req || rdev->scan_msg)
1485 return -EAGAIN; 1495 return -EAGAIN;
1486 1496
1487 res = ieee80211_scan_results(rdev, info, extra, data->length); 1497 res = ieee80211_scan_results(rdev, info, extra, data->length);