[Qemu-devel] [PATCH 5/5] block: qed - use QEMU_PACKED for on-disk structures

[Jeff Cody]

QEDHeader is read, and written, directly from on-disk images
via bdrv_pread()/write().  To avoid any unintentional padding,
these structs should be packed.

Signed-off-by: Jeff Cody <address@hidden>
---
 block/qed.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/qed.h b/block/qed.h
index 2b4dded..4d6c812 100644
--- a/block/qed.h
+++ b/block/qed.h
@@ -83,7 +83,7 @@ enum {
     QED_NEED_CHECK_TIMEOUT = 5,    /* in seconds */
 };
 
-typedef struct {
+typedef struct QEMU_PACKED {
     uint32_t magic;                 /* QED\0 */
 
     uint32_t cluster_size;          /* in bytes */
-- 
1.8.3.1