These fields were used to manually handle IO requests that weren't aligned
to a sector boundary before this feature was supported by the block API.

Once the block API changed to support byte-aligned IO requests, the macio
controller was switched over to use it in commit be1e343 but these fields
were accidentally left behind. Remove them, including the initialisation
in DBDMA_init().

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
---
 hw/misc/macio/mac_dbdma.c  |    2 --
 include/hw/ppc/mac_dbdma.h |    4 ----
 2 files changed, 6 deletions(-)

diff --git a/hw/misc/macio/mac_dbdma.c b/hw/misc/macio/mac_dbdma.c
index 3fe5073..9795172 100644
--- a/hw/misc/macio/mac_dbdma.c
+++ b/hw/misc/macio/mac_dbdma.c
@@ -893,9 +893,7 @@ void* DBDMA_init (MemoryRegion **dbdma_mem)
     s = g_malloc0(sizeof(DBDMAState));
 
     for (i = 0; i < DBDMA_CHANNELS; i++) {
-        DBDMA_io *io = &s->channels[i].io;
         DBDMA_channel *ch = &s->channels[i];
-        qemu_iovec_init(&io->iov, 1);
 
         ch->rw = dbdma_unassigned_rw;
         ch->flush = dbdma_unassigned_flush;
diff --git a/include/hw/ppc/mac_dbdma.h b/include/hw/ppc/mac_dbdma.h
index a860387..21bd66f 100644
--- a/include/hw/ppc/mac_dbdma.h
+++ b/include/hw/ppc/mac_dbdma.h
@@ -42,10 +42,6 @@ struct DBDMA_io {
     DBDMA_end dma_end;
     /* DMA is in progress, don't start another one */
     bool processing;
-    /* unaligned last sector of a request */
-    uint8_t head_remainder[0x200];
-    uint8_t tail_remainder[0x200];
-    QEMUIOVector iov;
     /* DMA request */
     void *dma_mem;
     dma_addr_t dma_len;
-- 
1.7.10.4