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/spapr.c b/arch/powerpc/sysdev/xive/spapr.c
index 797bb06..0fcae75 100644
--- a/arch/powerpc/sysdev/xive/spapr.c
+++ b/arch/powerpc/sysdev/xive/spapr.c
@@ -264,6 +264,8 @@ static int xive_spapr_populate_irq_data(u32 hw_irq, struct xive_irq_data *data)
 		return -ENOMEM;
 	}
 
+	data->hw_irq = hw_irq;
+
 	/* Full function page supports trigger */
 	if (flags & XIVE_SRC_TRIGGER) {
 		data->trig_mmio = data->eoi_mmio;