diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-03-21 10:00:28 +0100 |
|---|---|---|
| committer | Andrey Konovalov <andrey.konovalov@linaro.org> | 2013-06-14 18:38:03 +0400 |
| commit | 73df4cf8084ef7d83362d38d929eced372290528 (patch) | |
| tree | 7284b04e6d3e0abd694806715456508055d0fb1c | |
| parent | 4e42db1432ed3b4804129c1d0cf64216358450c5 (diff) | |
powerpc/fsl-msi: use a different locklcass for the cascade interrupt
lockdep thinks that it might deadlock because it grabs a lock of the
same class while calling the generic_irq_handler(). This annotation will
inform lockdep that it will not.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
| -rw-r--r-- | arch/powerpc/sysdev/fsl_msi.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c index 6e53d97abd3f..b94b4783b9bb 100644 --- a/arch/powerpc/sysdev/fsl_msi.c +++ b/arch/powerpc/sysdev/fsl_msi.c @@ -333,6 +333,8 @@ static int fsl_of_msi_remove(struct platform_device *ofdev) return 0; } +static struct lock_class_key fsl_msi_irq_class; + static int fsl_msi_setup_hwirq(struct fsl_msi *msi, struct platform_device *dev, int offset, int irq_index) { @@ -351,7 +353,7 @@ static int fsl_msi_setup_hwirq(struct fsl_msi *msi, struct platform_device *dev, dev_err(&dev->dev, "No memory for MSI cascade data\n"); return -ENOMEM; } - + irq_set_lockdep_class(virt_msir, &fsl_msi_irq_class); msi->msi_virqs[irq_index] = virt_msir; cascade_data->index = offset; cascade_data->msi_data = msi; |