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Groups > linux.kernel > #1354693
| From | Kamal Mostafa <kamal@canonical.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3.13.y-ckt 014/138] mac80211: Requeue work after scan complete for all VIF types. |
| Date | 2016-03-10 01:00 +0100 |
| Message-ID | <raWbh-74e-15@gated-at.bofh.it> (permalink) |
| References | <raVyx-6Nd-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
3.13.11-ckt36 -stable review patch. If anyone has any objections, please let me know.
---8<------------------------------------------------------------
From: Sachin Kulkarni <Sachin.Kulkarni@imgtec.com>
commit 4fa11ec726a32ea6dd768dbb2e2af3453a98ec0a upstream.
During a sw scan ieee80211_iface_work ignores work items for all vifs.
However after the scan complete work is requeued only for STA, ADHOC
and MESH iftypes.
This occasionally results in event processing getting delayed/not
processed for iftype AP when it coexists with a STA. This can result
in data halt and eventually disconnection on the AP interface.
Signed-off-by: Sachin Kulkarni <Sachin.Kulkarni@imgtec.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
net/mac80211/ibss.c | 1 -
net/mac80211/mesh.c | 11 -----------
net/mac80211/mesh.h | 4 ----
net/mac80211/mlme.c | 2 --
net/mac80211/scan.c | 12 +++++++++++-
5 files changed, 11 insertions(+), 19 deletions(-)
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 57ac06f..b1adfe8 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -1653,7 +1653,6 @@ void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local)
if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
continue;
sdata->u.ibss.last_scan_completed = jiffies;
- ieee80211_queue_work(&local->hw, &sdata->work);
}
mutex_unlock(&local->iflist_mtx);
}
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 5b2c192..1b364f8 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -1336,17 +1336,6 @@ out:
sdata_unlock(sdata);
}
-void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local)
-{
- struct ieee80211_sub_if_data *sdata;
-
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list)
- if (ieee80211_vif_is_mesh(&sdata->vif) &&
- ieee80211_sdata_running(sdata))
- ieee80211_queue_work(&local->hw, &sdata->work);
- rcu_read_unlock();
-}
void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
{
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 2bc7fd2..8b1cf3c 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -357,14 +357,10 @@ static inline bool mesh_path_sel_is_hwmp(struct ieee80211_sub_if_data *sdata)
return sdata->u.mesh.mesh_pp_id == IEEE80211_PATH_PROTOCOL_HWMP;
}
-void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local);
-
void mesh_path_flush_by_iface(struct ieee80211_sub_if_data *sdata);
void mesh_sync_adjust_tbtt(struct ieee80211_sub_if_data *sdata);
void ieee80211s_stop(void);
#else
-static inline void
-ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local) {}
static inline bool mesh_path_sel_is_hwmp(struct ieee80211_sub_if_data *sdata)
{ return false; }
static inline void mesh_path_flush_by_iface(struct ieee80211_sub_if_data *sdata)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index a2df2c4..57d31ee 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3482,8 +3482,6 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
if (!(flags & IEEE80211_HW_CONNECTION_MONITOR))
ieee80211_queue_work(&sdata->local->hw,
&sdata->u.mgd.monitor_work);
- /* and do all the other regular work too */
- ieee80211_queue_work(&sdata->local->hw, &sdata->work);
}
}
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 03a7f36..05edeb4 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -276,6 +276,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted,
{
struct ieee80211_local *local = hw_to_local(hw);
bool was_scanning = local->scanning;
+ struct ieee80211_sub_if_data *sdata;
lockdep_assert_held(&local->mtx);
@@ -327,7 +328,16 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted,
ieee80211_mlme_notify_scan_completed(local);
ieee80211_ibss_notify_scan_completed(local);
- ieee80211_mesh_notify_scan_completed(local);
+
+ /* Requeue all the work that might have been ignored while
+ * the scan was in progress; if there was none this will
+ * just be a no-op for the particular interface.
+ */
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ if (ieee80211_sdata_running(sdata))
+ ieee80211_queue_work(&sdata->local->hw, &sdata->work);
+ }
+
if (was_scanning)
ieee80211_start_next_roc(local);
}
--
2.7.0
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Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 065/138] ALSA: hda - Fix speaker output from VAIO AiO machines Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 091/138] ALSA: seq: Fix leak of pool buffer at concurrent writes Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 084/138] ext4: fix potential integer overflow Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 092/138] dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 095/138] ALSA: seq: Fix double port list deletion Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 104/138] ext4: fix crashes in dioread_nolock mode Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 058/138] ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 107/138] can: ems_usb: Fix possible tx overflow Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 083/138] btrfs: properly set the termination value of ctx->pos in readdir Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 105/138] kernel/resource.c: fix muxed resource handling in __request_region() Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 079/138] cifs: fix erroneous return value Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 087/138] xen/pciback: Check PF instead of VF for PCI_COMMAND_MEMORY Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 066/138] klist: fix starting point removed bug in klist iterators Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 102/138] hwmon: (ads1015) Handle negative conversion values correctly Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 098/138] NFSv4: Fix a dentry leak on alias use Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 053/138] SCSI: Add Marvell Console to VPD blacklist Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 021/138] intel_scu_ipcutil: underflow in scu_reg_access() Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 041/138] target: Fix Task Aborted Status (TAS) handling Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 020/138] iio: inkern: fix a NULL dereference on error Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 056/138] dump_stack: avoid potential deadlocks Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 027/138] libata: fix sff host state machine locking while polling Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 060/138] radix-tree: fix oops after radix_tree_iter_retry Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 049/138] ALSA: timer: Fix leftover link at closing Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 057/138] mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 046/138] target: Fix remote-port TMR ABORT + se_cmd fabric stop Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 048/138] [media] tda1004x: only update the frontend properties if locked Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 051/138] Btrfs: fix hang on extent buffer lock caused by the inode_paths ioctl Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 023/138] ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 037/138] radix-tree: fix race in gang lookup Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 035/138] ALSA: seq: Fix lockdep warnings due to double mutex locks Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 036/138] drivers/scsi/sg.c: mark VMA as VM_IO to prevent migration Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 030/138] module: wrapper for symbol name. Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 042/138] target: Add TFO->abort_task for aborted task resources release Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 040/138] xhci: Fix list corruption in urb dequeue at host removal Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 047/138] target: Fix race with SCF_SEND_DELAYED_TAS handling Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 045/138] target: Fix TAS handling for multi-session se_node_acls Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 038/138] Revert "xhci: don't finish a TD if we get a short-transfer event mid TD" Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 008/138] x86/entry/compat: Add missing CLAC to entry_INT80_32 Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 024/138] ALSA: pcm: Fix potential deadlock in OSS emulation Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 054/138] drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 022/138] ALSA: seq: Fix race at closing in virmidi driver Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 052/138] scsi_dh_rdac: always retry MODE SELECT on command lock violation Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 031/138] ALSA: hda - Add fixup for Mac Mini 7,1 model Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 050/138] [media] saa7134-alsa: Only frees registered sound cards Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 061/138] crypto: user - lock crypto_alg_list on alg dump Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 012/138] libata: disable forced PORTS_IMPL for >= AHCI 1.3 Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 019/138] crypto: algif_hash - wait for crypto_ahash_init() to complete Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 004/138] EVM: Use crypto_memneq() for digest comparisons Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 003/138] iw_cxgb3: Fix incorrectly returning error on success Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 005/138] ALSA: usb-audio: avoid freeing umidi object twice Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 014/138] mac80211: Requeue work after scan complete for all VIF types. Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 013/138] mac80211: start_next_roc only if scan was actually running Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 007/138] bcache: Fix a lockdep splat in an error path Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 018/138] target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 010/138] iommu/vt-d: Fix 64-bit accesses to 32-bit DMAR_GSTS_REG Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100
csiph-web