diff mbox

ath10k: Fix possible wrong rx_busy time reporting in QCA4019

Message ID 1467371245-5426-1-git-send-email-vthiagar@qti.qualcomm.com (mailing list archive)
State Accepted
Commit c11e99396d0f77b5a6adc25f7c7bd84750194724
Delegated to: Kalle Valo
Headers show

Commit Message

Vasanthakumar Thiagarajan July 1, 2016, 11:07 a.m. UTC
As hw cycle counters in QCA4019 wraparound independantly in QCA4019
it is possible cycle counter and rx clear counter would wraparound
at the same time. Current logic assumes only one of the counters
would wraparound at anytime. Fix this by moving 'else' part to
another 'if'.

Fixes: 8e100354a98 ("ath10k: fix cycle counter wraparound handling for QCA4019")
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/hw.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Julian Calaby July 4, 2016, 12:33 a.m. UTC | #1
Hi All,

On Fri, Jul 1, 2016 at 9:07 PM, Vasanthakumar Thiagarajan
<vthiagar@qti.qualcomm.com> wrote:
> As hw cycle counters in QCA4019 wraparound independantly in QCA4019
> it is possible cycle counter and rx clear counter would wraparound
> at the same time. Current logic assumes only one of the counters
> would wraparound at anytime. Fix this by moving 'else' part to
> another 'if'.
>
> Fixes: 8e100354a98 ("ath10k: fix cycle counter wraparound handling for QCA4019")
> Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>

Looks right to me.

Reviewed-by: Julian Calaby <julian.calaby@gmail.com>

Thanks,
Kalle Valo July 8, 2016, 2:06 p.m. UTC | #2
Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> wrote:
> As hw cycle counters in QCA4019 wraparound independantly in QCA4019
> it is possible cycle counter and rx clear counter would wraparound
> at the same time. Current logic assumes only one of the counters
> would wraparound at anytime. Fix this by moving 'else' part to
> another 'if'.
> 
> Fixes: 8e100354a98 ("ath10k: fix cycle counter wraparound handling for QCA4019")
> Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
> Reviewed-by: Julian Calaby <julian.calaby@gmail.com>

Thanks, 1 patch applied to ath-next branch of ath.git:

c11e99396d0f ath10k: fix possible wrong rx_busy time reporting in QCA4019
diff mbox

Patch

diff --git a/drivers/net/wireless/ath/ath10k/hw.c b/drivers/net/wireless/ath/ath10k/hw.c
index bd86e7a..7462627 100644
--- a/drivers/net/wireless/ath/ath10k/hw.c
+++ b/drivers/net/wireless/ath/ath10k/hw.c
@@ -198,7 +198,8 @@  void ath10k_hw_fill_survey_time(struct ath10k *ar, struct survey_info *survey,
 		case ATH10K_HW_CC_WRAP_SHIFTED_EACH:
 			if (cc < cc_prev)
 				cc_fix = 0x7fffffff;
-			else
+
+			if (rcc < rcc_prev)
 				rcc_fix = 0x7fffffff;
 			break;
 		case ATH10K_HW_CC_WRAP_DISABLED: