iommu/amd: Simpify decoding logic for INVALID_PPR_REQUEST event

Reuse existing macro to simplify the code and improve readability. Cc: Joerg Roedel <[email protected]> Cc: Gary R Hook <[email protected]> Signed-off-by: Suravee Suthikulpanit <[email protected]> Signed-off-by: Joerg Roedel <[email protected]>
devinus · Oct 15, 2019 · 470eb3b · 470eb3b
1 parent be62dbf
commit 470eb3b
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
@@ -617,8 +617,7 @@ static void iommu_print_event(struct amd_iommu *iommu, void *__evt)
 			pasid, address, flags);
 		break;
 	case EVENT_TYPE_INV_PPR_REQ:
-		pasid = ((event[0] >> 16) & 0xFFFF)
-			| ((event[1] << 6) & 0xF0000);
+		pasid = PPR_PASID(*((u64 *)__evt));
 		tag = event[1] & 0x03FF;
 		dev_err(dev, "Event logged [INVALID_PPR_REQUEST device=%02x:%02x.%x pasid=0x%05x address=0x%llx flags=0x%04x tag=0x%03x]\n",
 			PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),