libcxgb,iw_cxgb4,cxgbit: add cxgb_find_route6()
Add cxgb_find_route6() in libcxgb_cm.c to remove it's duplicate definitions from cxgb4/cm.c and cxgbit/cxgbit_cm.c. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Родитель
804c2f3e36
Коммит
95554761d1
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@ -465,46 +465,6 @@ static struct net_device *get_real_dev(struct net_device *egress_dev)
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return rdma_vlan_dev_real_dev(egress_dev) ? : egress_dev;
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}
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static int our_interface(struct c4iw_dev *dev, struct net_device *egress_dev)
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{
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int i;
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egress_dev = get_real_dev(egress_dev);
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for (i = 0; i < dev->rdev.lldi.nports; i++)
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if (dev->rdev.lldi.ports[i] == egress_dev)
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return 1;
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return 0;
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}
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static struct dst_entry *find_route6(struct c4iw_dev *dev, __u8 *local_ip,
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__u8 *peer_ip, __be16 local_port,
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__be16 peer_port, u8 tos,
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__u32 sin6_scope_id)
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{
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struct dst_entry *dst = NULL;
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if (IS_ENABLED(CONFIG_IPV6)) {
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struct flowi6 fl6;
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memset(&fl6, 0, sizeof(fl6));
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memcpy(&fl6.daddr, peer_ip, 16);
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memcpy(&fl6.saddr, local_ip, 16);
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if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)
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fl6.flowi6_oif = sin6_scope_id;
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dst = ip6_route_output(&init_net, NULL, &fl6);
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if (!dst)
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goto out;
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if (!our_interface(dev, ip6_dst_idev(dst)->dev) &&
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!(ip6_dst_idev(dst)->dev->flags & IFF_LOOPBACK)) {
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dst_release(dst);
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dst = NULL;
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}
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}
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out:
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return dst;
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}
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static void arp_failure_discard(void *handle, struct sk_buff *skb)
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{
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pr_err(MOD "ARP failure\n");
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@ -2197,10 +2157,13 @@ static int c4iw_reconnect(struct c4iw_ep *ep)
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iptype = 4;
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ra = (__u8 *)&raddr->sin_addr;
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} else {
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ep->dst = find_route6(ep->com.dev, laddr6->sin6_addr.s6_addr,
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raddr6->sin6_addr.s6_addr,
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laddr6->sin6_port, raddr6->sin6_port, 0,
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raddr6->sin6_scope_id);
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ep->dst = cxgb_find_route6(&ep->com.dev->rdev.lldi,
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get_real_dev,
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laddr6->sin6_addr.s6_addr,
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raddr6->sin6_addr.s6_addr,
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laddr6->sin6_port,
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raddr6->sin6_port, 0,
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raddr6->sin6_scope_id);
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iptype = 6;
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ra = (__u8 *)&raddr6->sin6_addr;
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}
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@ -2540,10 +2503,11 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb)
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, __func__, parent_ep, hwtid,
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local_ip, peer_ip, ntohs(local_port),
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ntohs(peer_port), peer_mss);
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dst = find_route6(dev, local_ip, peer_ip, local_port, peer_port,
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PASS_OPEN_TOS_G(ntohl(req->tos_stid)),
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((struct sockaddr_in6 *)
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&parent_ep->com.local_addr)->sin6_scope_id);
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dst = cxgb_find_route6(&dev->rdev.lldi, get_real_dev,
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local_ip, peer_ip, local_port, peer_port,
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PASS_OPEN_TOS_G(ntohl(req->tos_stid)),
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((struct sockaddr_in6 *)
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&parent_ep->com.local_addr)->sin6_scope_id);
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}
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if (!dst) {
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printk(KERN_ERR MOD "%s - failed to find dst entry!\n",
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@ -3339,10 +3303,12 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
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__func__, laddr6->sin6_addr.s6_addr,
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ntohs(laddr6->sin6_port),
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raddr6->sin6_addr.s6_addr, ntohs(raddr6->sin6_port));
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ep->dst = find_route6(dev, laddr6->sin6_addr.s6_addr,
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raddr6->sin6_addr.s6_addr,
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laddr6->sin6_port, raddr6->sin6_port, 0,
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raddr6->sin6_scope_id);
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ep->dst = cxgb_find_route6(&dev->rdev.lldi, get_real_dev,
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laddr6->sin6_addr.s6_addr,
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raddr6->sin6_addr.s6_addr,
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laddr6->sin6_port,
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raddr6->sin6_port, 0,
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raddr6->sin6_scope_id);
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}
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if (!ep->dst) {
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printk(KERN_ERR MOD "%s - cannot find route.\n", __func__);
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@ -33,6 +33,7 @@
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#include <linux/tcp.h>
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#include <linux/ipv6.h>
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#include <net/route.h>
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#include <net/ip6_route.h>
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#include "libcxgb_cm.h"
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@ -114,3 +115,35 @@ cxgb_find_route(struct cxgb4_lld_info *lldi,
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return &rt->dst;
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}
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EXPORT_SYMBOL(cxgb_find_route);
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struct dst_entry *
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cxgb_find_route6(struct cxgb4_lld_info *lldi,
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struct net_device *(*get_real_dev)(struct net_device *),
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__u8 *local_ip, __u8 *peer_ip, __be16 local_port,
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__be16 peer_port, u8 tos, __u32 sin6_scope_id)
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{
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struct dst_entry *dst = NULL;
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if (IS_ENABLED(CONFIG_IPV6)) {
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struct flowi6 fl6;
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memset(&fl6, 0, sizeof(fl6));
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memcpy(&fl6.daddr, peer_ip, 16);
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memcpy(&fl6.saddr, local_ip, 16);
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if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)
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fl6.flowi6_oif = sin6_scope_id;
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dst = ip6_route_output(&init_net, NULL, &fl6);
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if (!dst)
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goto out;
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if (!cxgb_our_interface(lldi, get_real_dev,
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ip6_dst_idev(dst)->dev) &&
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!(ip6_dst_idev(dst)->dev->flags & IFF_LOOPBACK)) {
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dst_release(dst);
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dst = NULL;
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}
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}
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out:
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return dst;
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}
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EXPORT_SYMBOL(cxgb_find_route6);
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@ -43,4 +43,8 @@ struct dst_entry *
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cxgb_find_route(struct cxgb4_lld_info *,
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struct net_device *(*)(struct net_device *),
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__be32, __be32, __be16, __be16, u8);
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struct dst_entry *
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cxgb_find_route6(struct cxgb4_lld_info *,
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struct net_device *(*)(struct net_device *),
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__u8 *, __u8 *, __be16, __be16, u8, __u32);
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#endif
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@ -790,46 +790,6 @@ void _cxgbit_free_csk(struct kref *kref)
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kfree(csk);
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}
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static int
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cxgbit_our_interface(struct cxgbit_device *cdev, struct net_device *egress_dev)
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{
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u8 i;
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egress_dev = cxgbit_get_real_dev(egress_dev);
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for (i = 0; i < cdev->lldi.nports; i++)
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if (cdev->lldi.ports[i] == egress_dev)
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return 1;
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return 0;
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}
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static struct dst_entry *
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cxgbit_find_route6(struct cxgbit_device *cdev, __u8 *local_ip, __u8 *peer_ip,
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__be16 local_port, __be16 peer_port, u8 tos,
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__u32 sin6_scope_id)
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{
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struct dst_entry *dst = NULL;
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if (IS_ENABLED(CONFIG_IPV6)) {
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struct flowi6 fl6;
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memset(&fl6, 0, sizeof(fl6));
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memcpy(&fl6.daddr, peer_ip, 16);
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memcpy(&fl6.saddr, local_ip, 16);
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if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)
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fl6.flowi6_oif = sin6_scope_id;
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dst = ip6_route_output(&init_net, NULL, &fl6);
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if (!dst)
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goto out;
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if (!cxgbit_our_interface(cdev, ip6_dst_idev(dst)->dev) &&
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!(ip6_dst_idev(dst)->dev->flags & IFF_LOOPBACK)) {
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dst_release(dst);
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dst = NULL;
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}
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}
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out:
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return dst;
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}
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static void cxgbit_set_tcp_window(struct cxgbit_sock *csk, struct port_info *pi)
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{
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unsigned int linkspeed;
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@ -1299,11 +1259,12 @@ cxgbit_pass_accept_req(struct cxgbit_device *cdev, struct sk_buff *skb)
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, __func__, cnp, tid,
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local_ip, peer_ip, ntohs(local_port),
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ntohs(peer_port), peer_mss);
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dst = cxgbit_find_route6(cdev, local_ip, peer_ip,
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local_port, peer_port,
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PASS_OPEN_TOS_G(ntohl(req->tos_stid)),
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((struct sockaddr_in6 *)
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&cnp->com.local_addr)->sin6_scope_id);
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dst = cxgb_find_route6(&cdev->lldi, cxgbit_get_real_dev,
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local_ip, peer_ip,
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local_port, peer_port,
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PASS_OPEN_TOS_G(ntohl(req->tos_stid)),
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((struct sockaddr_in6 *)
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&cnp->com.local_addr)->sin6_scope_id);
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}
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if (!dst) {
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pr_err("%s - failed to find dst entry!\n",
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