Signed-off-by: Stefan Fausser <info@real-time-systems.com>

--- linux/drivers/scsi/isci/host.c.orig	2015-08-19 15:23:28.000000000 +0200
+++ linux/drivers/scsi/isci/host.c	2015-08-19 16:08:30.000000000 +0200
@@ -612,6 +612,7 @@ irqreturn_t isci_intx_isr(int vec, void 
 
 	if (sci_controller_isr(ihost)) {
 		writel(SMU_ISR_COMPLETION, &ihost->smu_registers->interrupt_status);
+		writel(0xFF000000, &ihost->smu_registers->interrupt_mask);
 		tasklet_schedule(&ihost->completion_tasklet);
 		ret = IRQ_HANDLED;
 	} else if (sci_controller_error_isr(ihost)) {