From: Erik Stromdahl erik.stromdahl@gmail.com
[ Upstream commit 37f62c0d5822f631b786b29a1b1069ab714d1a28 ]
This is done in order not to trig the below warning in ieee80211_rx_napi:
WARN_ON_ONCE(softirq_count() == 0);
ieee80211_rx_napi requires that softirq's are disabled during execution.
The High latency bus drivers (SDIO and USB) sometimes call the wmi ep_rx_complete callback from non softirq context, resulting in a trigger of the above warning.
Calling ieee80211_rx_ni with softirq's already disabled (e.g., from softirq context) should be safe as the local_bh_disable and local_bh_enable functions (called from ieee80211_rx_ni) are fully reentrant.
Signed-off-by: Erik Stromdahl erik.stromdahl@gmail.com Signed-off-by: Kalle Valo kvalo@codeaurora.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath10k/wmi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index bbfe7be214e12..c208fed048554 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -2384,7 +2384,8 @@ int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb) status->freq, status->band, status->signal, status->rate_idx);
- ieee80211_rx(ar->hw, skb); + ieee80211_rx_ni(ar->hw, skb); + return 0; }