hw/usb: simplified usb_enabled

The argument is not longer used and the implementation
uses now QOM instead of QemuOpts.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Message-id: 1420550957-22337-4-git-send-email-marcel@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 5 insertions, 6 deletions

diff --git a/vl.c b/vl.c
index 415535f..7786b2f 100644
--- a/vl.c
+++ b/vl.c
@@ -1002,10 +1002,9 @@ bool defaults_enabled(void)
     return has_defaults;
 }
 
-bool usb_enabled(bool default_usb)
+bool usb_enabled(void)
 {
-    return qemu_opt_get_bool(qemu_get_machine_opts(), "usb",
-                             default_usb);
+    return machine_usb(current_machine);
 }
 
 #ifndef _WIN32
@@ -1229,7 +1228,7 @@ static int usb_device_add(const char *devname)
     const char *p;
 #endif
 
-    if (!usb_enabled(false)) {
+    if (!usb_enabled()) {
         return -1;
     }
 
@@ -1261,7 +1260,7 @@ static int usb_device_del(const char *devname)
         return -1;
     }
 
-    if (!usb_enabled(false)) {
+    if (!usb_enabled()) {
         return -1;
     }
 
@@ -4230,7 +4229,7 @@ int main(int argc, char **argv, char **envp)
     set_numa_modes();
 
     /* init USB devices */
-    if (usb_enabled(false)) {
+    if (usb_enabled()) {
         if (foreach_device_config(DEV_USB, usb_parse) < 0)
             exit(1);
     }