On Tue, Jun 18, 2019 at 12:28:02PM +0000, Bharat Kumar Gogada wrote:

[...]

> > Applied to pci/xilinx for v5.3, please have a look and check if the commit 
> > log
> > I wrote provides a clear description of the issue.
> > 
> > Lorenzo
> Thanks Lorenzo and Marc.
> Lorenzo, can you please point to link for above commit.

I did already.

Anyway:

https://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/pci.git/commit/?h=pci/xilinx&id=46c1bfcfcd873f8754f733e4258121748bcae3a3

> Regards,
> Bharat
> > > diff --git a/drivers/pci/controller/pcie-xilinx-nwl.c
> > > b/drivers/pci/controller/pcie-xilinx-nwl.c
> > > index 81538d7..a9e07b8 100644
> > > --- a/drivers/pci/controller/pcie-xilinx-nwl.c
> > > +++ b/drivers/pci/controller/pcie-xilinx-nwl.c
> > > @@ -483,15 +483,13 @@ static int nwl_irq_domain_alloc(struct
> > irq_domain *domain, unsigned int virq,
> > >   int i;
> > >
> > >   mutex_lock(&msi->lock);
> > > - bit = bitmap_find_next_zero_area(msi->bitmap, INT_PCI_MSI_NR, 0,
> > > -                                  nr_irqs, 0);
> > > - if (bit >= INT_PCI_MSI_NR) {
> > > + bit = bitmap_find_free_region(msi->bitmap, INT_PCI_MSI_NR,
> > > +                               get_count_order(nr_irqs));
> > > + if (bit < 0) {
> > >           mutex_unlock(&msi->lock);
> > >           return -ENOSPC;
> > >   }
> > >
> > > - bitmap_set(msi->bitmap, bit, nr_irqs);
> > > -
> > >   for (i = 0; i < nr_irqs; i++) {
> > >           irq_domain_set_info(domain, virq + i, bit + i, &nwl_irq_chip,
> > >                           domain->host_data, handle_simple_irq, @@
> > -509,7 +507,8 @@ static
> > > void nwl_irq_domain_free(struct irq_domain *domain, unsigned int virq,
> > >   struct nwl_msi *msi = &pcie->msi;
> > >
> > >   mutex_lock(&msi->lock);
> > > - bitmap_clear(msi->bitmap, data->hwirq, nr_irqs);
> > > + bitmap_release_region(msi->bitmap, data->hwirq,
> > > +                       get_count_order(nr_irqs));
> > >   mutex_unlock(&msi->lock);
> > >  }
> > >
> > > --
> > > 2.7.4
> > >

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