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>

4 files changed, 11 insertions, 5 deletions

diff --git a/hw/sd/milkymist-memcard.c b/hw/sd/milkymist-memcard.c
index 2a40f92..501aa3a 100644
--- a/hw/sd/milkymist-memcard.c
+++ b/hw/sd/milkymist-memcard.c
@@ -26,6 +26,7 @@
 #include "sysemu/sysemu.h"
 #include "trace.h"
 #include "qemu/error-report.h"
+#include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 #include "hw/sd.h"
 
@@ -252,14 +253,16 @@ static int milkymist_memcard_init(SysBusDevice *dev)
 {
     MilkymistMemcardState *s = MILKYMIST_MEMCARD(dev);
     DriveInfo *dinfo;
+    BlockDriverState *bs;
 
     dinfo = drive_get_next(IF_SD);
-    s->card = sd_init(dinfo ? dinfo->bdrv : NULL, false);
+    bs = dinfo ? blk_bs(blk_by_legacy_dinfo(dinfo)) : NULL;
+    s->card = sd_init(bs, false);
     if (s->card == NULL) {
         return -1;
     }
 
-    s->enabled = dinfo ? bdrv_is_inserted(dinfo->bdrv) : 0;
+    s->enabled = bs && bdrv_is_inserted(bs);
 
     memory_region_init_io(&s->regs_region, OBJECT(s), &memcard_mmio_ops, s,
             "milkymist-memcard", R_MAX * 4);
diff --git a/hw/sd/pl181.c b/hw/sd/pl181.c
index 462558b..0501d40 100644
--- a/hw/sd/pl181.c
+++ b/hw/sd/pl181.c
@@ -7,6 +7,7 @@
  * This code is licensed under the GPL.
  */
 
+#include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 #include "hw/sysbus.h"
 #include "hw/sd.h"
@@ -490,7 +491,7 @@ static int pl181_init(SysBusDevice *sbd)
     sysbus_init_irq(sbd, &s->irq[1]);
     qdev_init_gpio_out(dev, s->cardstatus, 2);
     dinfo = drive_get_next(IF_SD);
-    s->card = sd_init(dinfo ? dinfo->bdrv : NULL, false);
+    s->card = sd_init(dinfo ? blk_bs(blk_by_legacy_dinfo(dinfo)) : NULL, false);
     if (s->card == NULL) {
         return -1;
     }
diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c
index f9fe700..0b7d754 100644
--- a/hw/sd/sdhci.c
+++ b/hw/sd/sdhci.c
@@ -23,6 +23,7 @@
  */
 
 #include "hw/hw.h"
+#include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 #include "sysemu/dma.h"
 #include "qemu/timer.h"
@@ -1165,7 +1166,7 @@ static void sdhci_initfn(Object *obj)
     DriveInfo *di;
 
     di = drive_get_next(IF_SD);
-    s->card = sd_init(di ? di->bdrv : NULL, false);
+    s->card = sd_init(di ? blk_bs(blk_by_legacy_dinfo(di)) : NULL, false);
     if (s->card == NULL) {
         exit(1);
     }
diff --git a/hw/sd/ssi-sd.c b/hw/sd/ssi-sd.c
index b012e57..6ae99e4 100644
--- a/hw/sd/ssi-sd.c
+++ b/hw/sd/ssi-sd.c
@@ -10,6 +10,7 @@
  * GNU GPL, version 2 or (at your option) any later version.
  */
 
+#include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 #include "hw/ssi.h"
 #include "hw/sd.h"
@@ -255,7 +256,7 @@ static int ssi_sd_init(SSISlave *d)
 
     s->mode = SSI_SD_CMD;
     dinfo = drive_get_next(IF_SD);
-    s->sd = sd_init(dinfo ? dinfo->bdrv : NULL, true);
+    s->sd = sd_init(dinfo ? blk_bs(blk_by_legacy_dinfo(dinfo)) : NULL, true);
     if (s->sd == NULL) {
         return -1;
     }