powerpc/xive: add the HW IRQ number under xive_irq_data

It will be required later by the H_INT_ESB hcall.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/arch/powerpc/sysdev/xive/native.c b/arch/powerpc/sysdev/xive/native.c
index ace3d7a..44f3a25 100644
--- a/arch/powerpc/sysdev/xive/native.c
+++ b/arch/powerpc/sysdev/xive/native.c
@@ -82,6 +82,8 @@ int xive_native_populate_irq_data(u32 hw_irq, struct xive_irq_data *data)
 		return -ENOMEM;
 	}
 
+	data->hw_irq = hw_irq;
+
 	if (!data->trig_page)
 		return 0;
 	if (data->trig_page == data->eoi_page) {