[Qemu-devel] [PATCH 01/23] qcow2: fix unaligned access

[Kevin Wolf]

From: Aurelien Jarno <address@hidden>

cpu_to_be64w() is called with an obviously non-aligned pointer. Use
cpu_to_be64wu() instead. It fixes unaligned accesses errors on IA64
hosts.

Cc: Kevin Wolf <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
 block/qcow2-cluster.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index 6928c63..c3ef550 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -81,7 +81,7 @@ int qcow2_grow_l1_table(BlockDriverState *bs, int min_size, 
bool exact_size)
     /* set new table */
     BLKDBG_EVENT(bs->file, BLKDBG_L1_GROW_ACTIVATE_TABLE);
     cpu_to_be32w((uint32_t*)data, new_l1_size);
-    cpu_to_be64w((uint64_t*)(data + 4), new_l1_table_offset);
+    cpu_to_be64wu((uint64_t*)(data + 4), new_l1_table_offset);
     ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_size), 
data,sizeof(data));
     if (ret < 0) {
         goto fail;
-- 
1.7.2.3