>From the IBTA: "GUID (Global Unique Identifier): A globally unique EUI-64 compliant identifier." Make sure that siw GUIDs are valid EUI-64 identifiers. Cc: Bernard Metzler <bmt@xxxxxxxxxxxxxx> Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx> --- drivers/infiniband/sw/siw/siw_main.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/sw/siw/siw_main.c b/drivers/infiniband/sw/siw/siw_main.c index 05a92f997f60..d1a1b7aa7d83 100644 --- a/drivers/infiniband/sw/siw/siw_main.c +++ b/drivers/infiniband/sw/siw/siw_main.c @@ -16,6 +16,7 @@ #include <linux/module.h> #include <linux/dma-mapping.h> +#include <net/addrconf.h> #include <rdma/ib_verbs.h> #include <rdma/ib_user_verbs.h> #include <rdma/rdma_netlink.h> @@ -350,15 +351,19 @@ static struct siw_device *siw_device_create(struct net_device *netdev) sdev->netdev = netdev; if (netdev->type != ARPHRD_LOOPBACK) { - memcpy(&base_dev->node_guid, netdev->dev_addr, 6); + addrconf_addr_eui48((unsigned char *)&base_dev->node_guid, + netdev->dev_addr); } else { /* * The loopback device does not have a HW address, * but connection mangagement lib expects gid != 0 */ - size_t gidlen = min_t(size_t, strlen(base_dev->name), 6); + size_t len = min_t(size_t, strlen(base_dev->name), 6); + char addr[6] = { }; - memcpy(&base_dev->node_guid, base_dev->name, gidlen); + memcpy(addr, base_dev->name, len); + addrconf_addr_eui48((unsigned char *)&base_dev->node_guid, + addr); } base_dev->uverbs_cmd_mask = (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | -- 2.23.0.444.g18eeb5a265-goog