wil6210: Fix kernel oops in reset flow
wil_reset() removes vring's
At the same time NAPI may be active performing Rx/Tx completion.
If this happens, Rx/Tx polling functions going to access already removed vrings
Make sure NAPI is idle and won't be started prior to vring removal.
For this, track NAPI enabled state
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index f7d8f0e..89cbdc3 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -249,6 +249,7 @@
wil_status_dontscan,
wil_status_reset_done,
wil_status_irqen, /* FIXME: interrupts enabled - for debug */
+ wil_status_napi_en, /* NAPI enabled protected by wil->mutex */
};
struct pci_dev;