| Message ID | 1364909616-59478-1-git-send-email-bigeasy@linutronix.de (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Commit | 58631ad1205677c5b33f511fd5aae26eaa0c87c6 |
| Delegated to: | Kumar Gala |
| Headers | show |
On Apr 2, 2013, at 8:33 AM, Sebastian Andrzej Siewior wrote: > 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> > --- > arch/powerpc/sysdev/fsl_msi.c | 4 +++- > 1 files changed, 3 insertions(+), 1 deletions(-) applied to next - k
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c index 178c994..ab02db3 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;
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> --- arch/powerpc/sysdev/fsl_msi.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)