Hi Aleksey,

On 2016/12/1 19:12, Aleksey Makarov wrote:

Hi Hanjun,

On 10/25/2016 09:09 PM, Hanjun Guo wrote:

quoted

From: Hanjun Guo <redacted>

In ACPI 6.1 spec, section 19.6.62, Interrupt Resource Descriptor Macro,

[ ... ]

quoted

---
 drivers/acpi/gsi.c      | 10 ++++--
 drivers/acpi/resource.c | 85
++++++++++++++++++++++++++++++++++---------------
 include/acpi/acpi_bus.h |  1 +
 3 files changed, 68 insertions(+), 28 deletions(-)

diff --git a/drivers/acpi/gsi.c b/drivers/acpi/gsi.c
index ee9e0f2..29ee547 100644
--- a/drivers/acpi/gsi.c
+++ b/drivers/acpi/gsi.c

@@ -55,13 +55,19 @@ int acpi_register_gsi(struct device *dev, u32 gsi,

int trigger,
               int polarity)
 {
     struct irq_fwspec fwspec;
+    struct acpi_device *adev = dev ? to_acpi_device(dev) : NULL;

Why are you sure dev is always an acpi device?
Look for example at drivers/acpi/pci_irq.c:377 where this function
is called for a PCI device

Good catch, but I will drop this patch and use Agustin's one [1].

[1]: https://mail-archive.com/linux-kernel at vger.kernel.org/msg1283116.html

Thanks
Hanjun