When resuming (after wowlan), we want the rx packets (which is
usually the wake-up packet itself) to be passed to mac80211 only
after the resume notifier was completed, and mac80211 is up and
running (otherwise, the packets will be dropped).
By enqueueing the netstack_work to a freezable workqueue, we can
guarantee the rx processing to occur only after mac80211 was resumed.
Signed-off-by: Eliad Peller <eliad@xxxxxxxxxx>
Signed-off-by: Ido Yariv <ido@xxxxxxxxxx>
---
drivers/net/wireless/wl12xx/main.c | 12 +++++++++++-
drivers/net/wireless/wl12xx/rx.c | 2 +-
drivers/net/wireless/wl12xx/tx.c | 2 +-
drivers/net/wireless/wl12xx/wl12xx.h | 1 +
4 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index 9ee2411..1e2f76b 100644
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -4112,6 +4112,12 @@ struct ieee80211_hw *wl1271_alloc_hw(void)
INIT_WORK(&wl->rx_streaming_disable_work,
wl1271_rx_streaming_disable_work);
+ wl->freezable_wq = create_freezable_workqueue("wl12xx_wq");
+ if (!wl->freezable_wq) {
+ ret = -ENOMEM;
+ goto err_hw;
+ }
+
wl->channel = WL1271_DEFAULT_CHANNEL;
wl->beacon_int = WL1271_DEFAULT_BEACON_INT;
wl->default_key = 0;
@@ -4156,7 +4162,7 @@ struct ieee80211_hw *wl1271_alloc_hw(void)
wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
if (!wl->aggr_buf) {
ret = -ENOMEM;
- goto err_hw;
+ goto err_wq;
}
wl->dummy_packet = wl12xx_alloc_dummy_packet(wl);
@@ -4201,6 +4207,9 @@ err_dummy_packet:
err_aggr:
free_pages((unsigned long)wl->aggr_buf, order);
+err_wq:
+ destroy_workqueue(wl->freezable_wq);
+
err_hw:
wl1271_debugfs_exit(wl);
kfree(plat_dev);
@@ -4231,6 +4240,7 @@ int wl1271_free_hw(struct wl1271 *wl)
kfree(wl->fw_status);
kfree(wl->tx_res_if);
+ destroy_workqueue(wl->freezable_wq);
ieee80211_free_hw(wl->hw);
diff --git a/drivers/net/wireless/wl12xx/rx.c b/drivers/net/wireless/wl12xx/rx.c
index db230a5..9357695 100644
--- a/drivers/net/wireless/wl12xx/rx.c
+++ b/drivers/net/wireless/wl12xx/rx.c
@@ -150,7 +150,7 @@ static int wl1271_rx_handle_data(struct wl1271 *wl, u8 *data, u32 length)
skb_trim(skb, skb->len - desc->pad_len);
skb_queue_tail(&wl->deferred_rx_queue, skb);
- ieee80211_queue_work(wl->hw, &wl->netstack_work);
+ queue_work(wl->freezable_wq, &wl->netstack_work);
return is_data;
}
diff --git a/drivers/net/wireless/wl12xx/tx.c b/drivers/net/wireless/wl12xx/tx.c
index b2635c7..200590c 100644
--- a/drivers/net/wireless/wl12xx/tx.c
+++ b/drivers/net/wireless/wl12xx/tx.c
@@ -727,7 +727,7 @@ static void wl1271_tx_complete_packet(struct wl1271 *wl,
/* return the packet to the stack */
skb_queue_tail(&wl->deferred_tx_queue, skb);
- ieee80211_queue_work(wl->hw, &wl->netstack_work);
+ queue_work(wl->freezable_wq, &wl->netstack_work);
wl1271_free_tx_id(wl, result->id);
}
diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h
index 06785db..8d6d039 100644
--- a/drivers/net/wireless/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/wl12xx/wl12xx.h
@@ -445,6 +445,7 @@ struct wl1271 {
struct sk_buff_head deferred_tx_queue;
struct work_struct tx_work;
+ struct workqueue_struct *freezable_wq;
/* Pending TX frames */
unsigned long tx_frames_map[BITS_TO_LONGS(ACX_TX_DESCRIPTORS)];
--
1.7.0.4
--
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