diff options
| author | Julian Wiedmann <jwi@linux.ibm.com> | 2019-10-31 15:42:20 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-10-31 22:32:59 +0300 |
| commit | 1b40d4b2fbd626cbb789184d993d7452892fba3f (patch) | |
| tree | 1b1fe59e9b72e037be6042a8b67116a9efd892c8 | |
| parent | 04fa55fe07d15587b00ef1269fcbf793a2e45739 (diff) | |
| download | linux-1b40d4b2fbd626cbb789184d993d7452892fba3f.tar.xz | |
s390/qeth: use helpers for IP address hashing
Replace our custom implementations with the stack's version of IP address
hashing.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/s390/net/qeth_l3.h | 21 | ||||
| -rw-r--r-- | drivers/s390/net/qeth_l3_main.c | 8 |
2 files changed, 10 insertions, 19 deletions
diff --git a/drivers/s390/net/qeth_l3.h b/drivers/s390/net/qeth_l3.h index 87659cfc9066..b7ba404a81f9 100644 --- a/drivers/s390/net/qeth_l3.h +++ b/drivers/s390/net/qeth_l3.h @@ -37,7 +37,7 @@ struct qeth_ipaddr { enum qeth_prot_versions proto; union { struct { - unsigned int addr; + __be32 addr; unsigned int mask; } a4; struct { @@ -89,21 +89,12 @@ static inline bool qeth_l3_addr_match_all(struct qeth_ipaddr *a1, return a1->u.a4.mask == a2->u.a4.mask; } -static inline u64 qeth_l3_ipaddr_hash(struct qeth_ipaddr *addr) +static inline u32 qeth_l3_ipaddr_hash(struct qeth_ipaddr *addr) { - u64 ret = 0; - u8 *point; - - if (addr->proto == QETH_PROT_IPV6) { - point = (u8 *) &addr->u.a6.addr; - ret = get_unaligned((u64 *)point) ^ - get_unaligned((u64 *) (point + 8)); - } - if (addr->proto == QETH_PROT_IPV4) { - point = (u8 *) &addr->u.a4.addr; - ret = get_unaligned((u32 *) point); - } - return ret; + if (addr->proto == QETH_PROT_IPV6) + return ipv6_addr_hash(&addr->u.a6.addr); + else + return ipv4_addr_hash(addr->u.a4.addr); } struct qeth_ipato_entry { diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index acae44a699ad..8f92407bf580 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -76,7 +76,7 @@ static struct qeth_ipaddr *qeth_l3_get_addr_buffer(enum qeth_prot_versions prot) static struct qeth_ipaddr *qeth_l3_find_addr_by_ip(struct qeth_card *card, struct qeth_ipaddr *query) { - u64 key = qeth_l3_ipaddr_hash(query); + u32 key = qeth_l3_ipaddr_hash(query); struct qeth_ipaddr *addr; if (query->is_multicast) { @@ -1128,7 +1128,7 @@ qeth_l3_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev) for (im4 = rcu_dereference(in4_dev->mc_list); im4 != NULL; im4 = rcu_dereference(im4->next_rcu)) { ip_eth_mc_map(im4->multiaddr, tmp->mac); - tmp->u.a4.addr = be32_to_cpu(im4->multiaddr); + tmp->u.a4.addr = im4->multiaddr; tmp->is_multicast = 1; ipm = qeth_l3_find_addr_by_ip(card, tmp); @@ -1140,7 +1140,7 @@ qeth_l3_add_mc_to_hash(struct qeth_card *card, struct in_device *in4_dev) if (!ipm) continue; ether_addr_copy(ipm->mac, tmp->mac); - ipm->u.a4.addr = be32_to_cpu(im4->multiaddr); + ipm->u.a4.addr = im4->multiaddr; ipm->is_multicast = 1; ipm->disp_flag = QETH_DISP_ADDR_ADD; hash_add(card->ip_mc_htable, @@ -2548,7 +2548,7 @@ static int qeth_l3_ip_event(struct notifier_block *this, QETH_CARD_TEXT(card, 3, "ipevent"); qeth_l3_init_ipaddr(&addr, QETH_IP_TYPE_NORMAL, QETH_PROT_IPV4); - addr.u.a4.addr = be32_to_cpu(ifa->ifa_address); + addr.u.a4.addr = ifa->ifa_address; addr.u.a4.mask = be32_to_cpu(ifa->ifa_mask); return qeth_l3_handle_ip_event(card, &addr, event); |