diff mbox series

[v2,2/9] x86/xen: simplify xen_oldmem_pfn_is_ram()

Message ID 20211005121430.30136-3-david@redhat.com (mailing list archive)
State New, archived
Headers show
Series proc/vmcore: sanitize access to virtio-mem memory | expand

Commit Message

David Hildenbrand Oct. 5, 2021, 12:14 p.m. UTC
Let's simplify return handling.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 arch/x86/xen/mmu_hvm.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

Comments

Boris Ostrovsky Oct. 5, 2021, 7:26 p.m. UTC | #1
On 10/5/21 8:14 AM, David Hildenbrand wrote:
> Let's simplify return handling.
>
> Signed-off-by: David Hildenbrand <david@redhat.com>


Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
diff mbox series

Patch

diff --git a/arch/x86/xen/mmu_hvm.c b/arch/x86/xen/mmu_hvm.c
index b242d1f4b426..d1b38c77352b 100644
--- a/arch/x86/xen/mmu_hvm.c
+++ b/arch/x86/xen/mmu_hvm.c
@@ -21,23 +21,10 @@  static int xen_oldmem_pfn_is_ram(unsigned long pfn)
 		.domid = DOMID_SELF,
 		.pfn = pfn,
 	};
-	int ram;
 
 	if (HYPERVISOR_hvm_op(HVMOP_get_mem_type, &a))
 		return -ENXIO;
-
-	switch (a.mem_type) {
-	case HVMMEM_mmio_dm:
-		ram = 0;
-		break;
-	case HVMMEM_ram_rw:
-	case HVMMEM_ram_ro:
-	default:
-		ram = 1;
-		break;
-	}
-
-	return ram;
+	return a.mem_type != HVMMEM_mmio_dm;
 }
 #endif