From: Ben Greear <greearb@xxxxxxxxxxxxxxx>
I was seeing some spin-lock hangs in this area of the code,
and it seems more proper to do the rcu-read-lock outside of
the spin lock. I am not sure how much this matters, however.
Signed-off-by: Ben Greear <greearb@xxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath10k/mac.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 916119c..d96c06e 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4307,8 +4307,8 @@ void ath10k_mac_tx_push_pending(struct ath10k *ar)
int max;
int loop_max = 2000;
- spin_lock_bh(&ar->txqs_lock);
rcu_read_lock();
+ spin_lock_bh(&ar->txqs_lock);
last = list_last_entry(&ar->txqs, struct ath10k_txq, list);
while (!list_empty(&ar->txqs)) {
@@ -4342,8 +4342,8 @@ void ath10k_mac_tx_push_pending(struct ath10k *ar)
break;
}
- rcu_read_unlock();
spin_unlock_bh(&ar->txqs_lock);
+ rcu_read_unlock();
}
/************/
--
2.4.11
