dnsd: fix unaligned access problem

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 8 insertions, 3 deletions

diff --git a/networking/dnsd.c b/networking/dnsd.c
index c76a54f..1a99040 100644
--- a/networking/dnsd.c
+++ b/networking/dnsd.c
@@ -44,10 +44,15 @@ struct dns_head {
 	uint16_t nauth;
 	uint16_t nadd;
 };
+/* Structure used to access type and class fields.
+ * They are totally unaligned, but gcc 4.3.4 thinks that pointer of type uint16_t*
+ * is 16-bit aligned and replaces 16-bit memcpy (in move_from_unaligned16 macro)
+ * with aligned halfword access on arm920t!
+ * Oh well. Slapping PACKED everywhere seems to help: */
 struct type_and_class {
-	uint16_t type;
-	uint16_t class;
-};
+	uint16_t type PACKED;
+	uint16_t class PACKED;
+} PACKED;
 /* element of known name, ip address and reversed ip address */
 struct dns_entry {
 	struct dns_entry *next;