From 99f0b85d5f5a965648dea2be61511368e9152439 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Wed, 20 Dec 2017 20:11:01 +0100 Subject: [PATCH] s390/qeth: use ether_addr_* helpers Be a little more self-documenting, and get rid of OSA_ADDR_LEN. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller --- drivers/s390/net/qeth_core_main.c | 11 +++++------ drivers/s390/net/qeth_core_mpc.h | 13 ++++++------- drivers/s390/net/qeth_l2.h | 2 +- drivers/s390/net/qeth_l2_main.c | 12 ++++++------ drivers/s390/net/qeth_l3.h | 2 +- drivers/s390/net/qeth_l3_main.c | 29 +++++++++++++---------------- 6 files changed, 32 insertions(+), 37 deletions(-) diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index bc4e57540a9e..a007f6249166 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -4216,9 +4216,8 @@ static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, cmd = (struct qeth_ipa_cmd *) data; if (!card->options.layer2 || !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) { - memcpy(card->dev->dev_addr, - &cmd->data.setadapterparms.data.change_addr.addr, - OSA_ADDR_LEN); + ether_addr_copy(card->dev->dev_addr, + cmd->data.setadapterparms.data.change_addr.addr); card->info.mac_bits |= QETH_LAYER2_MAC_READ; } qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); @@ -4240,9 +4239,9 @@ int qeth_setadpparms_change_macaddr(struct qeth_card *card) return -ENOMEM; cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; - cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN; - memcpy(&cmd->data.setadapterparms.data.change_addr.addr, - card->dev->dev_addr, OSA_ADDR_LEN); + cmd->data.setadapterparms.data.change_addr.addr_size = ETH_ALEN; + ether_addr_copy(cmd->data.setadapterparms.data.change_addr.addr, + card->dev->dev_addr); rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, NULL); return rc; diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h index ff6877f7b6f8..619f897b4bb0 100644 --- a/drivers/s390/net/qeth_core_mpc.h +++ b/drivers/s390/net/qeth_core_mpc.h @@ -10,6 +10,7 @@ #define __QETH_CORE_MPC_H__ #include +#include #define IPA_PDU_HEADER_SIZE 0x40 #define QETH_IPA_PDU_LEN_TOTAL(buffer) (buffer + 0x0e) @@ -25,7 +26,6 @@ extern unsigned char IPA_PDU_HEADER[]; #define QETH_SEQ_NO_LENGTH 4 #define QETH_MPC_TOKEN_LENGTH 4 #define QETH_MCL_LENGTH 4 -#define OSA_ADDR_LEN 6 #define QETH_TIMEOUT (10 * HZ) #define QETH_IPA_TIMEOUT (45 * HZ) @@ -416,12 +416,11 @@ struct qeth_query_cmds_supp { } __attribute__ ((packed)); struct qeth_change_addr { - __u32 cmd; - __u32 addr_size; - __u32 no_macs; - __u8 addr[OSA_ADDR_LEN]; -} __attribute__ ((packed)); - + u32 cmd; + u32 addr_size; + u32 no_macs; + u8 addr[ETH_ALEN]; +}; struct qeth_snmp_cmd { __u8 token[16]; diff --git a/drivers/s390/net/qeth_l2.h b/drivers/s390/net/qeth_l2.h index 3223601cc3ac..f2130051ca11 100644 --- a/drivers/s390/net/qeth_l2.h +++ b/drivers/s390/net/qeth_l2.h @@ -22,7 +22,7 @@ int qeth_l2_vnicc_get_timeout(struct qeth_card *card, u32 *timeout); bool qeth_l2_vnicc_is_in_use(struct qeth_card *card); struct qeth_mac { - u8 mac_addr[OSA_ADDR_LEN]; + u8 mac_addr[ETH_ALEN]; u8 disp_flag:2; struct hlist_node hnode; }; diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 94079e2c462d..7c635abc79d2 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -109,8 +109,8 @@ static int qeth_l2_send_setdelmac(struct qeth_card *card, __u8 *mac, if (!iob) return -ENOMEM; cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); - cmd->data.setdelmac.mac_length = OSA_ADDR_LEN; - memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN); + cmd->data.setdelmac.mac_length = ETH_ALEN; + ether_addr_copy(cmd->data.setdelmac.mac, mac); return qeth_setdelmac_makerc(card, qeth_send_ipa_cmd(card, iob, NULL, NULL)); } @@ -123,7 +123,7 @@ static int qeth_l2_send_setmac(struct qeth_card *card, __u8 *mac) rc = qeth_l2_send_setdelmac(card, mac, IPA_CMD_SETVMAC); if (rc == 0) { card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED; - memcpy(card->dev->dev_addr, mac, OSA_ADDR_LEN); + ether_addr_copy(card->dev->dev_addr, mac); dev_info(&card->gdev->dev, "MAC address %pM successfully registered on device %s\n", card->dev->dev_addr, card->dev->name); @@ -532,7 +532,7 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p) QETH_CARD_TEXT(card, 3, "setmcTYP"); return -EOPNOTSUPP; } - QETH_CARD_HEX(card, 3, addr->sa_data, OSA_ADDR_LEN); + QETH_CARD_HEX(card, 3, addr->sa_data, ETH_ALEN); if (qeth_wait_for_threads(card, QETH_RECOVER_THREAD)) { QETH_CARD_TEXT(card, 3, "setmcREC"); return -ERESTARTSYS; @@ -586,7 +586,7 @@ static void qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha) struct qeth_mac *mac; hash_for_each_possible(card->mac_htable, mac, hnode, mac_hash) { - if (!memcmp(ha->addr, mac->mac_addr, OSA_ADDR_LEN)) { + if (ether_addr_equal_64bits(ha->addr, mac->mac_addr)) { mac->disp_flag = QETH_DISP_ADDR_DO_NOTHING; return; } @@ -596,7 +596,7 @@ static void qeth_l2_add_mac(struct qeth_card *card, struct netdev_hw_addr *ha) if (!mac) return; - memcpy(mac->mac_addr, ha->addr, OSA_ADDR_LEN); + ether_addr_copy(mac->mac_addr, ha->addr); mac->disp_flag = QETH_DISP_ADDR_ADD; hash_add(card->mac_htable, &mac->hnode, mac_hash); diff --git a/drivers/s390/net/qeth_l3.h b/drivers/s390/net/qeth_l3.h index e5833837b799..071c00841208 100644 --- a/drivers/s390/net/qeth_l3.h +++ b/drivers/s390/net/qeth_l3.h @@ -29,7 +29,7 @@ struct qeth_ipaddr { */ int ref_counter; enum qeth_prot_versions proto; - unsigned char mac[OSA_ADDR_LEN]; + unsigned char mac[ETH_ALEN]; union { struct { unsigned int addr; diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 0404d5c61ad7..519042d6f94a 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -207,8 +207,8 @@ inline int qeth_l3_ipaddrs_is_equal(struct qeth_ipaddr *addr1, struct qeth_ipaddr *addr2) { return addr1->proto == addr2->proto && - !memcmp(&addr1->u, &addr2->u, sizeof(addr1->u)) && - !memcmp(&addr1->mac, &addr2->mac, sizeof(addr1->mac)); + !memcmp(&addr1->u, &addr2->u, sizeof(addr1->u)) && + ether_addr_equal_64bits(addr1->mac, addr2->mac); } static struct qeth_ipaddr * @@ -446,7 +446,7 @@ static int qeth_l3_send_setdelmc(struct qeth_card *card, if (!iob) return -ENOMEM; cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); - memcpy(&cmd->data.setdelipm.mac, addr->mac, OSA_ADDR_LEN); + ether_addr_copy(cmd->data.setdelipm.mac, addr->mac); if (addr->proto == QETH_PROT_IPV6) memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr, sizeof(struct in6_addr)); @@ -1168,8 +1168,8 @@ static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card, cmd = (struct qeth_ipa_cmd *) data; if (cmd->hdr.return_code == 0) - memcpy(card->dev->dev_addr, - cmd->data.create_destroy_addr.unique_id, ETH_ALEN); + ether_addr_copy(card->dev->dev_addr, + cmd->data.create_destroy_addr.unique_id); else eth_random_addr(card->dev->dev_addr); @@ -1392,7 +1392,7 @@ qeth_l3_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev) ipm = qeth_l3_get_addr_buffer(QETH_PROT_IPV4); if (!ipm) continue; - memcpy(ipm->mac, tmp->mac, sizeof(tmp->mac)); + ether_addr_copy(ipm->mac, tmp->mac); ipm->u.a4.addr = be32_to_cpu(im4->multiaddr); ipm->is_multicast = 1; ipm->disp_flag = QETH_DISP_ADDR_ADD; @@ -1475,7 +1475,7 @@ static void qeth_l3_add_mc6_to_hash(struct qeth_card *card, if (!ipm) continue; - memcpy(ipm->mac, tmp->mac, sizeof(tmp->mac)); + ether_addr_copy(ipm->mac, tmp->mac); memcpy(&ipm->u.a6.addr, &im6->mca_addr.s6_addr, sizeof(struct in6_addr)); ipm->is_multicast = 1; @@ -1652,11 +1652,10 @@ static int qeth_l3_vlan_rx_kill_vid(struct net_device *dev, static void qeth_l3_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, struct qeth_hdr *hdr) { - unsigned char tg_addr[MAX_ADDR_LEN]; - if (!(hdr->hdr.l3.flags & QETH_HDR_PASSTHRU)) { u16 prot = (hdr->hdr.l3.flags & QETH_HDR_IPV6) ? ETH_P_IPV6 : ETH_P_IP; + unsigned char tg_addr[ETH_ALEN]; skb_reset_network_header(skb); switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK) { @@ -1670,8 +1669,7 @@ static void qeth_l3_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, skb->pkt_type = PACKET_MULTICAST; break; case QETH_CAST_BROADCAST: - memcpy(tg_addr, card->dev->broadcast, - card->dev->addr_len); + ether_addr_copy(tg_addr, card->dev->broadcast); card->stats.multicast++; skb->pkt_type = PACKET_BROADCAST; break; @@ -1683,8 +1681,7 @@ static void qeth_l3_rebuild_skb(struct qeth_card *card, struct sk_buff *skb, skb->pkt_type = PACKET_OTHERHOST; else skb->pkt_type = PACKET_HOST; - memcpy(tg_addr, card->dev->dev_addr, - card->dev->addr_len); + ether_addr_copy(tg_addr, card->dev->dev_addr); } if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR) card->dev->header_ops->create(skb, card->dev, prot, @@ -2411,7 +2408,7 @@ static int qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb) return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0; /* ... */ - if (!memcmp(skb->data, skb->dev->broadcast, 6)) + if (ether_addr_equal_64bits(eth_hdr(skb)->h_dest, skb->dev->broadcast)) return RTN_BROADCAST; else { u16 hdr_mac; @@ -2504,8 +2501,8 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr, hdr->hdr.l3.flags &= ~QETH_HDR_PASSTHRU; memcpy(hdr->hdr.l3.dest_addr, pkey, 16); } else { - if (!memcmp(skb->data + sizeof(struct qeth_hdr), - skb->dev->broadcast, 6)) { + if (ether_addr_equal_64bits(eth_hdr(skb)->h_dest, + skb->dev->broadcast)) { /* broadcast? */ hdr->hdr.l3.flags = QETH_CAST_BROADCAST | QETH_HDR_PASSTHRU; -- 2.30.2