A soft lockup was observed on ARM multicore platform while UDP
RX iperf was running on station.
Reason for this is delay_main_task was not taken into consideration while
jumping to process_start. Now if delay_main_task is true, we would exit
mwifiex_main_process instead of going to process_start again.
This ensure other process is scheduled on this CPU and soft lockup is avoided.
Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
Signed-off-by: Kevin Gan <ganhy@xxxxxxxxxxx>
Signed-off-by: Marc Yang <yangyang@xxxxxxxxxxx>
Signed-off-by: Avinash Patil <patila@xxxxxxxxxxx>
Signed-off-by: Cathy Luo <cluo@xxxxxxxxxxx>
---
drivers/net/wireless/mwifiex/main.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index b522f7c..be52189 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -330,7 +330,8 @@ process_start:
} while (true);
spin_lock_irqsave(&adapter->main_proc_lock, flags);
- if ((adapter->int_status) || IS_CARD_RX_RCVD(adapter)) {
+ if (!adapter->delay_main_work &&
+ (adapter->int_status || IS_CARD_RX_RCVD(adapter))) {
spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
goto process_start;
}
--
1.8.1.4
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