block: Eliminate DriveInfo member bdrv, use blk_by_legacy_dinfo()

The patch is big, but all it really does is replacing

    dinfo->bdrv

by

    blk_bs(blk_by_legacy_dinfo(dinfo))

The replacement is repetitive, but the conversion of device models to
BlockBackend is imminent, and will shorten it to just
blk_legacy_dinfo(dinfo).

Line wrapping muddies the waters a bit.  I also omit tests whether
dinfo->bdrv is null, because it never is.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/hw/i386/pc_sysfw.c b/hw/i386/pc_sysfw.c
index bbe367a..9bf22b6 100644
--- a/hw/i386/pc_sysfw.c
+++ b/hw/i386/pc_sysfw.c
@@ -23,6 +23,7 @@
  * THE SOFTWARE.
  */
 
+#include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 #include "qemu/error-report.h"
 #include "hw/sysbus.h"
@@ -119,7 +120,7 @@ static void pc_system_flash_init(MemoryRegion *rom_memory)
          (unit < FLASH_MAP_UNIT_MAX &&
           (pflash_drv = drive_get(IF_PFLASH, 0, unit)) != NULL);
          ++unit) {
-        bdrv = pflash_drv->bdrv;
+        bdrv = blk_bs(blk_by_legacy_dinfo(pflash_drv));
         size = bdrv_getlength(bdrv);
         if (size < 0) {
             fatal_errmsg = g_strdup_printf("failed to get backing file size");