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Diffstat (limited to 'hw/net/msf2-emac.c')
-rw-r--r--hw/net/msf2-emac.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/hw/net/msf2-emac.c b/hw/net/msf2-emac.c
index 7ccd3e5..db3a04d 100644
--- a/hw/net/msf2-emac.c
+++ b/hw/net/msf2-emac.c
@@ -118,14 +118,18 @@ static void emac_load_desc(MSF2EmacState *s, EmacDesc *d, hwaddr desc)
d->next = le32_to_cpu(d->next);
}
-static void emac_store_desc(MSF2EmacState *s, EmacDesc *d, hwaddr desc)
+static void emac_store_desc(MSF2EmacState *s, const EmacDesc *d, hwaddr desc)
{
- /* Convert from host endianness into LE. */
- d->pktaddr = cpu_to_le32(d->pktaddr);
- d->pktsize = cpu_to_le32(d->pktsize);
- d->next = cpu_to_le32(d->next);
-
- address_space_write(&s->dma_as, desc, MEMTXATTRS_UNSPECIFIED, d, sizeof *d);
+ EmacDesc outd;
+ /*
+ * Convert from host endianness into LE. We use a local struct because
+ * calling code may still want to look at the fields afterwards.
+ */
+ outd.pktaddr = cpu_to_le32(d->pktaddr);
+ outd.pktsize = cpu_to_le32(d->pktsize);
+ outd.next = cpu_to_le32(d->next);
+
+ address_space_write(&s->dma_as, desc, MEMTXATTRS_UNSPECIFIED, &outd, sizeof outd);
}
static void msf2_dma_tx(MSF2EmacState *s)