net: qca_spi: Make sure the QCA7000 reset is triggered

[ 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@i2se.com>
Fixes: ed7d42e24eff ("net: qca_spi: fix transmit queue timeout handling")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/qualcomm/qca_spi.c b/drivers/net/ethernet/qualcomm/qca_spi.c
index bffcf4986539db7f1d26424df8dbe15f95832e4d..fb348e044b4e278e5e244fd4e34be00c6503729c 100644 (file)
--- 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_device *dev)
        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