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-rw-r--r--net/can/af_can.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 6efcd37..c96140a 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -41,6 +41,7 @@
*/
#include <linux/module.h>
+#include <linux/stddef.h>
#include <linux/init.h>
#include <linux/kmod.h>
#include <linux/slab.h>
@@ -824,6 +825,12 @@ static struct notifier_block can_netdev_notifier __read_mostly = {
static __init int can_init(void)
{
+ /* check for correct padding to be able to use the structs similarly */
+ BUILD_BUG_ON(offsetof(struct can_frame, can_dlc) !=
+ offsetof(struct canfd_frame, len) ||
+ offsetof(struct can_frame, data) !=
+ offsetof(struct canfd_frame, data));
+
printk(banner);
memset(&can_rx_alldev_list, 0, sizeof(can_rx_alldev_list));
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