diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/net/qeth_core.h | 2 | ||||
| -rw-r--r-- | drivers/s390/net/qeth_core_main.c | 31 |
2 files changed, 24 insertions, 9 deletions
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index 28db887d38ed..47e01cdd1775 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -651,7 +651,7 @@ struct qeth_card_blkt { struct qeth_card_info { unsigned short unit_addr2; unsigned short cula; - unsigned short chpid; + u8 chpid; __u16 func_level; char mcl_level[QETH_MCL_LENGTH + 1]; u8 open_when_online:1; diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 0803070246aa..50f2773a1f8c 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -1775,19 +1775,32 @@ static int qeth_send_control_data(struct qeth_card *card, return rc; } +struct qeth_node_desc { + struct node_descriptor nd1; + struct node_descriptor nd2; + struct node_descriptor nd3; +}; + static void qeth_read_conf_data_cb(struct qeth_card *card, struct qeth_cmd_buffer *iob) { - unsigned char *prcd = iob->data; + struct qeth_node_desc *nd = (struct qeth_node_desc *) iob->data; + u8 *tag; QETH_CARD_TEXT(card, 2, "cfgunit"); - card->info.chpid = prcd[30]; - card->info.unit_addr2 = prcd[31]; - card->info.cula = prcd[63]; - card->info.is_vm_nic = ((prcd[0x10] == _ascebc['V']) && - (prcd[0x11] == _ascebc['M'])); - card->info.use_v1_blkt = prcd[74] == 0xF0 && prcd[75] == 0xF0 && - prcd[76] >= 0xF1 && prcd[76] <= 0xF4; + card->info.is_vm_nic = nd->nd1.plant[0] == _ascebc['V'] && + nd->nd1.plant[1] == _ascebc['M']; + tag = (u8 *)&nd->nd1.tag; + card->info.chpid = tag[0]; + card->info.unit_addr2 = tag[1]; + + tag = (u8 *)&nd->nd2.tag; + card->info.cula = tag[1]; + + card->info.use_v1_blkt = nd->nd3.model[0] == 0xF0 && + nd->nd3.model[1] == 0xF0 && + nd->nd3.model[2] >= 0xF1 && + nd->nd3.model[2] <= 0xF4; qeth_notify_reply(iob->reply, 0); qeth_put_cmd(iob); @@ -1803,6 +1816,8 @@ static int qeth_read_conf_data(struct qeth_card *card) ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); if (!ciw || ciw->cmd == 0) return -EOPNOTSUPP; + if (ciw->count < sizeof(struct qeth_node_desc)) + return -EINVAL; iob = qeth_alloc_cmd(channel, ciw->count, 1, QETH_RCD_TIMEOUT); if (!iob) |