diff mbox series

[7/9] wil6210: fix missed MISC mbox interrupt

Message ID 1556293417-27097-8-git-send-email-merez@codeaurora.org (mailing list archive)
State Accepted
Commit 7441be71ba7e07791fd4fa2b07c932dff14ff4d9
Delegated to: Kalle Valo
Headers show
Series wil6210 patches | expand

Commit Message

Maya Erez April 26, 2019, 3:43 p.m. UTC
When MISC interrupt is triggered due to HALP bit, in parallel
to mbox events handling by the MISC threaded IRQ, new mbox
interrupt can be missed in the following scenario:
1. MISC ICR is read in the IRQ handler
2. Threaded IRQ is completed and all MISC interrupts are unmasked
3. mbox interrupt is set by FW
4. HALP is masked
The mbox interrupt in step 3 can be missed due to constant high level
of ICM.
Masking all MISC IRQs instead of masking only HALP bit in step 4
will guarantee that ICM will drop to 0 and interrupt will be triggered
once MISC interrupts will be unmasked.

Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/interrupt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/ath/wil6210/interrupt.c b/drivers/net/wireless/ath/wil6210/interrupt.c
index d161dc9..b00a13d 100644
--- a/drivers/net/wireless/ath/wil6210/interrupt.c
+++ b/drivers/net/wireless/ath/wil6210/interrupt.c
@@ -595,7 +595,7 @@  static irqreturn_t wil6210_irq_misc(int irq, void *cookie)
 			/* no need to handle HALP ICRs until next vote */
 			wil->halp.handle_icr = false;
 			wil_dbg_irq(wil, "irq_misc: HALP IRQ invoked\n");
-			wil6210_mask_halp(wil);
+			wil6210_mask_irq_misc(wil, true);
 			complete(&wil->halp.comp);
 		}
 	}