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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2013-03-21 09:00:28 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2013-04-04 22:09:40 (GMT) |
| commit | 899802ca7d5c4259ca0aa09dbb2d99f73d3f096f (patch) | |
| tree | a29afb12a49b34a4184fff512a7ab58de3877760 /arch/powerpc/sysdev/fsl_msi.c | |
| parent | 18b4ed55ef83e77e8df2c45f1a99ffc6e5c07db6 (diff) | |
| download | linux-fsl-qoriq-899802ca7d5c4259ca0aa09dbb2d99f73d3f096f.tar.xz | |
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>
Diffstat (limited to 'arch/powerpc/sysdev/fsl_msi.c')
| -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 6e53d97..b94b478 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; |