4.9-stable review patch. If anyone has any objections, please let me know.
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From: Stefan Wahren stefan.wahren@i2se.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@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 --- 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 @@ -739,6 +739,9 @@ 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