diff options
| author | Avinash Patil <patila@marvell.com> | 2014-09-29 21:44:13 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-09-30 13:17:46 -0400 |
| commit | f73e557bca0609d0f997414a5b1403e3fadd5dea (patch) | |
| tree | c7e48f589a3f7dc12ee1e89f8a409c959d7f1ec3 /drivers/net/wireless/mwifiex/main.c | |
| parent | b182427efa7dbd9ed301dea7aae8a5c0fbbe5e53 (diff) | |
mwifiex: fix soft lockup during iperf UDP RX
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@marvell.com>
Signed-off-by: Kevin Gan <ganhy@marvell.com>
Signed-off-by: Marc Yang <yangyang@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mwifiex/main.c')
| -rw-r--r-- | drivers/net/wireless/mwifiex/main.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c index b522f7c36901..be5218987101 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; } |