We turn off interrupt in ISR, and re-enable interrupt in threadfn or
napi_poll according to the mode it stays. If we are turning off interrupt,
rtwpci->running flag is unset and interrupt handler stop processing even
if it was called, so disallow to re-enable interrupt in this situation.
Or, wifi chip doesn't trigger interrupt events anymore because interrupt
status (ISR) isn't clear by interrupt handler anymore.
Fixes: c83dcd0508e2 ("rtw89: pci: add a separate interrupt handler for low power mode")
Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
---
Hi Kalle,
This patchset contains two patches with fixes tag, but we don't turn on
lower power mode yet, so this patchset should go to wireless-next tree.
Thank you.
---
drivers/net/wireless/realtek/rtw89/pci.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtw89/pci.c b/drivers/net/wireless/realtek/rtw89/pci.c
index c68fec9eb5a64..8a093e1cb328e 100644
--- a/drivers/net/wireless/realtek/rtw89/pci.c
+++ b/drivers/net/wireless/realtek/rtw89/pci.c
@@ -760,7 +760,8 @@ static irqreturn_t rtw89_pci_interrupt_threadfn(int irq, void *dev)
enable_intr:
spin_lock_irqsave(&rtwpci->irq_lock, flags);
- rtw89_chip_enable_intr(rtwdev, rtwpci);
+ if (likely(rtwpci->running))
+ rtw89_chip_enable_intr(rtwdev, rtwpci);
spin_unlock_irqrestore(&rtwpci->irq_lock, flags);
return IRQ_HANDLED;
}
--
2.25.1
