NTB: clear interrupt status register

The interrupt status register should be cleared by driver once the particular event is handled. The patch fixes this. Signed-off-by: Arindam Nath <[email protected]> Signed-off-by: Jon Mason <[email protected]>
sm00th · Mar 13, 2020 · 52ba447 · 52ba447
1 parent cb004c2
commit 52ba447
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c
@@ -550,6 +550,9 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec)
 		dev_info(dev, "event status = 0x%x.\n", status);
 		break;
 	}
+
+	/* Clear the interrupt status */
+	writel(status, mmio + AMD_INTSTAT_OFFSET);
 }
 
 static irqreturn_t ndev_interrupt(struct amd_ntb_dev *ndev, int vec)