vmspawn: use qemu_device_driver_to_string() in resolve_disk_driver

Drop the inline DiskType → QEMU device driver switch and call the shared
helper instead. serial_max and the CD-ROM read-only flag stay inline
since they are vmspawn-local.

Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>

diff --git a/src/vmspawn/vmspawn.c b/src/vmspawn/vmspawn.c
index 1b696f70144803aca0f0810a82ddfc8ccd58f905..7ed21af77b16da44bf8a1f0364e67145051a6b6c 100644 (file)
--- a/src/vmspawn/vmspawn.c
+++ b/src/vmspawn/vmspawn.c
@@ -2273,7 +2273,6 @@ static int qemu_config_add_qmp_monitor(FILE *config_file, int bridge_fds[2], int
 }
 
 static int resolve_disk_driver(DiskType dt, const char *filename, DriveInfo *info) {
-        const char *driver;
         size_t serial_max;
         int r;
 
@@ -2282,19 +2281,15 @@ static int resolve_disk_driver(DiskType dt, const char *filename, DriveInfo *inf
 
         switch (dt) {
         case DISK_TYPE_VIRTIO_BLK:
-                driver = "virtio-blk-pci";
                 serial_max = DISK_SERIAL_MAX_LEN_VIRTIO_BLK;
                 break;
         case DISK_TYPE_VIRTIO_SCSI:
-                driver = "scsi-hd";
                 serial_max = DISK_SERIAL_MAX_LEN_SCSI;
                 break;
         case DISK_TYPE_NVME:
-                driver = "nvme";
                 serial_max = DISK_SERIAL_MAX_LEN_NVME;
                 break;
         case DISK_TYPE_VIRTIO_SCSI_CDROM:
-                driver = "scsi-cd";
                 serial_max = DISK_SERIAL_MAX_LEN_SCSI;
                 info->flags |= QMP_DRIVE_READ_ONLY;
                 break;
@@ -2302,7 +2297,7 @@ static int resolve_disk_driver(DiskType dt, const char *filename, DriveInfo *inf
                 assert_not_reached();
         }
 
-        info->disk_driver = strdup(driver);
+        info->disk_driver = strdup(ASSERT_PTR(qemu_device_driver_to_string(dt)));
         if (!info->disk_driver)
                 return log_oom();