From: David S. Miller <davem@davemloft.net>
Date: Tue, 1 Mar 2011 22:36:37 +0000 (-0800)
Subject: xfrm: Kill XFRM_LOOKUP_WAIT flag.
X-Git-Tag: firefly_0821_release~7613^2~2196^2~189
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=80c0bc9e37adfc892af82cb6aa8cace79f8a96cb;p=firefly-linux-kernel-4.4.55.git

xfrm: Kill XFRM_LOOKUP_WAIT flag.

This can be determined from the flow flags instead.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/dst.h b/include/net/dst.h
index 4fedffd7c56f..15d67c8d3ce8 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -421,8 +421,7 @@ extern void		dst_init(void);
 
 /* Flags for xfrm_lookup flags argument. */
 enum {
-	XFRM_LOOKUP_WAIT = 1 << 0,
-	XFRM_LOOKUP_ICMP = 1 << 1,
+	XFRM_LOOKUP_ICMP = 1 << 0,
 };
 
 struct flowi;
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 06c054d5ccba..0877147d2167 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1233,8 +1233,9 @@ int dn_route_output_sock(struct dst_entry **pprt, struct flowi *fl, struct sock
 
 	err = __dn_route_output_key(pprt, fl, flags & MSG_TRYHARD);
 	if (err == 0 && fl->proto) {
-		err = xfrm_lookup(&init_net, pprt, fl, sk,
-				 (flags & MSG_DONTWAIT) ? 0 : XFRM_LOOKUP_WAIT);
+		if (!(flags & MSG_DONTWAIT))
+			fl->flags |= FLOWI_FLAG_CAN_SLEEP;
+		err = xfrm_lookup(&init_net, pprt, fl, sk, 0);
 	}
 	return err;
 }
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 78462658fccb..23d205043d92 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2732,9 +2732,7 @@ int ip_route_output_flow(struct net *net, struct rtable **rp, struct flowi *flp,
 			flp->fl4_src = (*rp)->rt_src;
 		if (!flp->fl4_dst)
 			flp->fl4_dst = (*rp)->rt_dst;
-		err = __xfrm_lookup(net, (struct dst_entry **)rp, flp, sk,
-				    ((flp->flags & FLOWI_FLAG_CAN_SLEEP) ?
-				     XFRM_LOOKUP_WAIT : 0));
+		err = __xfrm_lookup(net, (struct dst_entry **)rp, flp, sk, 0);
 		if (err == -EREMOTE)
 			err = ipv4_dst_blackhole(net, rp, flp);
 
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index b5f8769dbdf4..faf7b9d1d536 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1027,7 +1027,7 @@ struct dst_entry *ip6_dst_lookup_flow(struct sock *sk, struct flowi *fl,
 		ipv6_addr_copy(&fl->fl6_dst, final_dst);
 	if (can_sleep) {
 		fl->flags |= FLOWI_FLAG_CAN_SLEEP;
-		err = __xfrm_lookup(sock_net(sk), &dst, fl, sk, XFRM_LOOKUP_WAIT);
+		err = __xfrm_lookup(sock_net(sk), &dst, fl, sk, 0);
 		if (err == -EREMOTE)
 			err = ip6_dst_blackhole(sk, &dst, fl);
 		if (err)
@@ -1072,7 +1072,7 @@ struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi *fl,
 		ipv6_addr_copy(&fl->fl6_dst, final_dst);
 	if (can_sleep) {
 		fl->flags |= FLOWI_FLAG_CAN_SLEEP;
-		err = __xfrm_lookup(sock_net(sk), &dst, fl, sk, XFRM_LOOKUP_WAIT);
+		err = __xfrm_lookup(sock_net(sk), &dst, fl, sk, 0);
 		if (err == -EREMOTE)
 			err = ip6_dst_blackhole(sk, &dst, fl);
 		if (err)
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 41a91d27d3ea..f4c7467a614e 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1831,7 +1831,7 @@ restart:
 			XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTNOSTATES);
 			return -EREMOTE;
 		}
-		if (flags & XFRM_LOOKUP_WAIT) {
+		if (fl->flags & FLOWI_FLAG_CAN_SLEEP) {
 			DECLARE_WAITQUEUE(wait, current);
 
 			add_wait_queue(&net->xfrm.km_waitq, &wait);