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From: "Rafał Miłecki" <zajec5@gmail.com>
To: Kalle Valo <kvalo@codeaurora.org>
Cc: "Arend van Spriel" <arend.vanspriel@broadcom.com>,
	"Franky Lin" <franky.lin@broadcom.com>,
	"Hante Meuleman" <hante.meuleman@broadcom.com>,
	"Pieter-Paul Giesberts" <pieter-paul.giesberts@broadcom.com>,
	"Franky Lin" <frankyl@broadcom.com>,
	linux-wireless@vger.kernel.org,
	brcm80211-dev-list.pdl@broadcom.com, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, "Rafał Miłecki" <rafal@milecki.pl>
Subject: [PATCH] brcmfmac: replace WARNING on timeout with a simple error message
Date: Tue, 27 Sep 2016 12:12:24 +0200	[thread overview]
Message-ID: <20160927101224.3534-1-zajec5@gmail.com> (raw)

From: Rafał Miłecki <rafal@milecki.pl>

Even with timeout increased to 950 ms we get WARNINGs from time to time.
It mostly happens on A-MPDU stalls (e.g. when station goes out of
range). It may take up to 5-10 secods for the firmware to recover and
for that time it doesn't process packets.

It's still useful to have a message on time out as it may indicate some
firmware problem and incorrect key update. Raising a WARNING however
wasn't really that necessary, it doesn't point to any driver bug anymore
and backtrace wasn't much useful.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
index 6d046ba..9e6f60a 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -1161,7 +1161,8 @@ int brcmf_netdev_wait_pend8021x(struct brcmf_if *ifp)
 				 !brcmf_get_pend_8021x_cnt(ifp),
 				 MAX_WAIT_FOR_8021X_TX);
 
-	WARN_ON(!err);
+	if (!err)
+		brcmf_err("Timed out waiting for no pending 802.1x packets\n");
 
 	return !err;
 }
-- 
2.9.3

             reply	other threads:[~2016-09-27 10:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-27 10:12 Rafał Miłecki [this message]
2016-09-27 11:25 ` [PATCH] brcmfmac: replace WARNING on timeout with a simple error message Arend Van Spriel
2016-09-27 15:47 ` Kalle Valo

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