This is a note to let you know that I've just added the patch titled
can: mcp251x: add missing IRQF_ONESHOT to request_threaded_irq
to the 3.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
can-mcp251x-add-missing-irqf_oneshot-to-request_threaded_irq.patch
and it can be found in the queue-3.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From db388d6460ffa53b3b38429da6f70a913f89b048 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Date: Thu, 11 Apr 2013 10:08:27 +0200
Subject: can: mcp251x: add missing IRQF_ONESHOT to request_threaded_irq
From: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
commit db388d6460ffa53b3b38429da6f70a913f89b048 upstream.
Since commit:
1c6c695 genirq: Reject bogus threaded irq requests
threaded irqs must provide a primary handler or set the IRQF_ONESHOT flag.
Since the mcp251x driver doesn't make use of a primary handler set the
IRQF_ONESHOT flag.
Reported-by: Mylene Josserand <Mylene.Josserand@xxxxxxxxxxx>
Tested-by: Mylene Josserand <Mylene.Josserand@xxxxxxxxxxx>
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/can/mcp251x.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/drivers/net/can/mcp251x.c
+++ b/drivers/net/can/mcp251x.c
@@ -922,6 +922,7 @@ static int mcp251x_open(struct net_devic
struct mcp251x_priv *priv = netdev_priv(net);
struct spi_device *spi = priv->spi;
struct mcp251x_platform_data *pdata = spi->dev.platform_data;
+ unsigned long flags;
int ret;
ret = open_candev(net);
@@ -938,9 +939,14 @@ static int mcp251x_open(struct net_devic
priv->tx_skb = NULL;
priv->tx_len = 0;
+ flags = IRQF_ONESHOT;
+ if (pdata->irq_flags)
+ flags |= pdata->irq_flags;
+ else
+ flags |= IRQF_TRIGGER_FALLING;
+
ret = request_threaded_irq(spi->irq, NULL, mcp251x_can_ist,
- pdata->irq_flags ? pdata->irq_flags : IRQF_TRIGGER_FALLING,
- DEVICE_NAME, priv);
+ flags, DEVICE_NAME, priv);
if (ret) {
dev_err(&spi->dev, "failed to acquire irq %d\n", spi->irq);
if (pdata->transceiver_enable)
Patches currently in stable-queue which might be from mkl@xxxxxxxxxxxxxx are
queue-3.8/can-mcp251x-add-missing-irqf_oneshot-to-request_threaded_irq.patch
queue-3.8/can-sja1000-fix-handling-on-dt-properties-on-little-endian-systems.patch
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