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-rw-r--r--features/rt/net-sundance-Use-tasklet_disable_in_atomic.patch38
1 files changed, 38 insertions, 0 deletions
diff --git a/features/rt/net-sundance-Use-tasklet_disable_in_atomic.patch b/features/rt/net-sundance-Use-tasklet_disable_in_atomic.patch
new file mode 100644
index 00000000..93713951
--- /dev/null
+++ b/features/rt/net-sundance-Use-tasklet_disable_in_atomic.patch
@@ -0,0 +1,38 @@
+From 8281edf5e8fa71507a09c7511ea11da232e373af Mon Sep 17 00:00:00 2001
+From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+Date: Tue, 9 Mar 2021 09:42:12 +0100
+Subject: [PATCH 049/191] net: sundance: Use tasklet_disable_in_atomic().
+
+tasklet_disable() is used in the timer callback. This might be distangled,
+but without access to the hardware that's a bit risky.
+
+Replace it with tasklet_disable_in_atomic() so tasklet_disable() can be
+changed to a sleep wait once all remaining atomic users are converted.
+
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+Cc: Denis Kirjanov <kda@linux-powerpc.org>
+Cc: "David S. Miller" <davem@davemloft.net>
+Cc: Jakub Kicinski <kuba@kernel.org>
+Cc: netdev@vger.kernel.org
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+---
+ drivers/net/ethernet/dlink/sundance.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/net/ethernet/dlink/sundance.c b/drivers/net/ethernet/dlink/sundance.c
+index e3a8858915b3..df0eab479d51 100644
+--- a/drivers/net/ethernet/dlink/sundance.c
++++ b/drivers/net/ethernet/dlink/sundance.c
+@@ -963,7 +963,7 @@ static void tx_timeout(struct net_device *dev, unsigned int txqueue)
+ unsigned long flag;
+
+ netif_stop_queue(dev);
+- tasklet_disable(&np->tx_tasklet);
++ tasklet_disable_in_atomic(&np->tx_tasklet);
+ iowrite16(0, ioaddr + IntrEnable);
+ printk(KERN_WARNING "%s: Transmit timed out, TxStatus %2.2x "
+ "TxFrameId %2.2x,"
+--
+2.19.1
+