hw/i386/xen: Remove dead code

'drivers_blacklisted' is never accessed, remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <20210202155644.998812-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

diff --git a/hw/i386/xen/xen_platform.c b/hw/i386/xen/xen_platform.c
index 7c4db35..01ae1fb 100644 (file)
--- a/hw/i386/xen/xen_platform.c
+++ b/hw/i386/xen/xen_platform.c
@@ -60,7 +60,6 @@ struct PCIXenPlatformState {
     MemoryRegion bar;
     MemoryRegion mmio_bar;
     uint8_t flags; /* used only for version_id == 2 */
-    int drivers_blacklisted;
     uint16_t driver_product_version;
 
     /* Log from guest drivers */
@@ -245,18 +244,10 @@ static void platform_fixed_ioport_writeb(void *opaque, uint32_t addr, uint32_t v
 
 static uint32_t platform_fixed_ioport_readw(void *opaque, uint32_t addr)
 {
-    PCIXenPlatformState *s = opaque;
-
     switch (addr) {
     case 0:
-        if (s->drivers_blacklisted) {
-            /* The drivers will recognise this magic number and refuse
-             * to do anything. */
-            return 0xd249;
-        } else {
-            /* Magic value so that you can identify the interface. */
-            return 0x49d2;
-        }
+        /* Magic value so that you can identify the interface. */
+        return 0x49d2;
     default:
         return 0xffff;
     }