linux-kernel - [PATCH 03/55] staging: wfx: fix counter overflow

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Message-ID: <20191216170302.29543-4-Jerome.Pouiller@silabs.com>
Date:   Mon, 16 Dec 2019 17:03:34 +0000
From:   Jérôme Pouiller <Jerome.Pouiller@...abs.com>
To:     "devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kalle Valo <kvalo@...eaurora.org>,
        "David S . Miller" <davem@...emloft.net>,
        Jérôme Pouiller <Jerome.Pouiller@...abs.com>
Subject: [PATCH 03/55] staging: wfx: fix counter overflow

From: Jérôme Pouiller <jerome.pouiller@...abs.com>

Some weird behaviors were observed when connection is really good and
packets are small. It appears that sometime, number of packets in queues
can exceed 255 and generate an overflow in field usage_count.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@...abs.com>
---
 drivers/staging/wfx/data_tx.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/wfx/data_tx.h b/drivers/staging/wfx/data_tx.h
index a0f9ae69baf5..f63e5d8cf929 100644
--- a/drivers/staging/wfx/data_tx.h
+++ b/drivers/staging/wfx/data_tx.h
@@ -39,8 +39,8 @@ struct wfx_link_entry {
 
 struct tx_policy {
 	struct list_head link;
+	int usage_count;
 	u8 rates[12];
-	u8 usage_count;
 	u8 uploaded;
 };
 
-- 
2.20.1