From a803cb8eb8ada1add74f1b393b8a553a7e7f3acf Mon Sep 17 00:00:00 2001
From: Markus Armbruster <armbru@redhat.com>
Date: Wed, 2 Jun 2010 13:31:55 +0200
Subject: [PATCH] blockdev: Hide QEMUMachine from drive_init()

To pave the way for moving it out of vl.c.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 hw/device-hotplug.c |  2 +-
 hw/usb-msd.c        |  2 +-
 sysemu.h            |  3 ++-
 vl.c                | 12 +++++-------
 4 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/hw/device-hotplug.c b/hw/device-hotplug.c
index 9cc8376691..a3fe99ea77 100644
--- a/hw/device-hotplug.c
+++ b/hw/device-hotplug.c
@@ -38,7 +38,7 @@ DriveInfo *add_init_drive(const char *optstr)
     if (!opts)
         return NULL;
 
-    dinfo = drive_init(opts, current_machine, &fatal_error);
+    dinfo = drive_init(opts, current_machine->use_scsi, &fatal_error);
     if (!dinfo) {
         qemu_opts_del(opts);
         return NULL;
diff --git a/hw/usb-msd.c b/hw/usb-msd.c
index c1c2537475..0ba4a64d7c 100644
--- a/hw/usb-msd.c
+++ b/hw/usb-msd.c
@@ -584,7 +584,7 @@ static USBDevice *usb_msd_init(const char *filename)
     qemu_opt_set(opts, "if", "none");
 
     /* create host drive */
-    dinfo = drive_init(opts, NULL, &fatal_error);
+    dinfo = drive_init(opts, 0, &fatal_error);
     if (!dinfo) {
         qemu_opts_del(opts);
         return NULL;
diff --git a/sysemu.h b/sysemu.h
index fd83b7dc1c..46a1b2f87f 100644
--- a/sysemu.h
+++ b/sysemu.h
@@ -191,7 +191,8 @@ extern BlockInterfaceErrorAction drive_get_on_error(
 BlockDriverState *qdev_init_bdrv(DeviceState *dev, BlockInterfaceType type);
 
 extern QemuOpts *drive_add(const char *file, const char *fmt, ...);
-extern DriveInfo *drive_init(QemuOpts *arg, void *machine, int *fatal_error);
+extern DriveInfo *drive_init(QemuOpts *arg, int default_to_scsi,
+                             int *fatal_error);
 
 /* device-hotplug */
 
diff --git a/vl.c b/vl.c
index 551138f0cc..db1fefd3ff 100644
--- a/vl.c
+++ b/vl.c
@@ -767,8 +767,7 @@ static int parse_block_error_action(const char *buf, int is_read)
     }
 }
 
-DriveInfo *drive_init(QemuOpts *opts, void *opaque,
-                      int *fatal_error)
+DriveInfo *drive_init(QemuOpts *opts, int default_to_scsi, int *fatal_error)
 {
     const char *buf;
     const char *file = NULL;
@@ -780,7 +779,6 @@ DriveInfo *drive_init(QemuOpts *opts, void *opaque,
     int bus_id, unit_id;
     int cyls, heads, secs, translation;
     BlockDriver *drv = NULL;
-    QEMUMachine *machine = opaque;
     int max_devs;
     int index;
     int ro = 0;
@@ -795,7 +793,7 @@ DriveInfo *drive_init(QemuOpts *opts, void *opaque,
 
     translation = BIOS_ATA_TRANSLATION_AUTO;
 
-    if (machine && machine->use_scsi) {
+    if (default_to_scsi) {
         type = IF_SCSI;
         max_devs = MAX_SCSI_DEVS;
         pstrcpy(devname, sizeof(devname), "scsi");
@@ -1135,10 +1133,10 @@ DriveInfo *drive_init(QemuOpts *opts, void *opaque,
 
 static int drive_init_func(QemuOpts *opts, void *opaque)
 {
-    QEMUMachine *machine = opaque;
+    int *use_scsi = opaque;
     int fatal_error = 0;
 
-    if (drive_init(opts, machine, &fatal_error) == NULL) {
+    if (drive_init(opts, *use_scsi, &fatal_error) == NULL) {
         if (fatal_error)
             return 1;
     }
@@ -3641,7 +3639,7 @@ int main(int argc, char **argv, char **envp)
     /* open the virtual block devices */
     if (snapshot)
         qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
-    if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
+    if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, &machine->use_scsi, 1) != 0)
         exit(1);
 
     register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,