linux-kernel - [PATCH 4.14 194/217] net: qca_spi: Make sure the QCA7000 reset is triggered

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20180823075514.379955104@linuxfoundation.org>
Date:   Thu, 23 Aug 2018 09:55:07 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Stefan Wahren <stefan.wahren@...e.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.14 194/217] net: qca_spi: Make sure the QCA7000 reset is triggered

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Stefan Wahren <stefan.wahren@...e.com>

[ Upstream commit 711c62dfa6bdb4326ca6c587f295ea5c4f7269de ]

In case the SPI thread is not running, a simple reset of sync
state won't fix the transmit timeout. We also need to wake up the kernel
thread.

Signed-off-by: Stefan Wahren <stefan.wahren@...e.com>
Fixes: ed7d42e24eff ("net: qca_spi: fix transmit queue timeout handling")
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/qualcomm/qca_spi.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/net/ethernet/qualcomm/qca_spi.c
+++ b/drivers/net/ethernet/qualcomm/qca_spi.c
@@ -761,6 +761,9 @@ qcaspi_netdev_tx_timeout(struct net_devi
 	qca->net_dev->stats.tx_errors++;
 	/* Trigger tx queue flush and QCA7000 reset */
 	qca->sync = QCASPI_SYNC_UNKNOWN;
+
+	if (qca->spi_thread)
+		wake_up_process(qca->spi_thread);
 }
 
 static int