From a5303c9c81187898dec96f8317d749b35d38e765 Mon Sep 17 00:00:00 2001
From: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
Date: Wed, 23 Dec 2015 11:19:27 +0000
Subject: [PATCH] Remove squash & wash 'feature'

---
 include/linux/pkt_sched.h |  1 -
 tc/q_cake.c               | 21 +--------------------
 2 files changed, 1 insertion(+), 21 deletions(-)

diff --git a/include/linux/pkt_sched.h b/include/linux/pkt_sched.h
index 56f3163b..e7905a69 100644
--- a/include/linux/pkt_sched.h
+++ b/include/linux/pkt_sched.h
@@ -909,7 +909,6 @@ enum {
 	TCA_CAKE_TARGET,
 	TCA_CAKE_AUTORATE,
 	TCA_CAKE_MEMORY,
-	TCA_CAKE_WASH,
 	__TCA_CAKE_MAX
 };
 #define TCA_CAKE_MAX	(__TCA_CAKE_MAX - 1)
diff --git a/tc/q_cake.c b/tc/q_cake.c
index b62d4ff0..6b69f13b 100644
--- a/tc/q_cake.c
+++ b/tc/q_cake.c
@@ -56,7 +56,6 @@ static void explain(void)
 	                "                [ besteffort | precedence | diffserv8 | diffserv4* ]\n"
 	                "                [ flowblind | srchost | dsthost | hosts | flows* | dual-srchost | dual-dsthost | triple-isolate ]\n"
 	                "                [ atm | noatm* ] [ overhead N | conservative | raw* ]\n"
-	                "                [ wash | nowash* ]\n"
 	                "                [ memlimit LIMIT ]\n"
 	                "    (* marks defaults)\n");
 }
@@ -70,7 +69,6 @@ static int cake_parse_opt(struct qdisc_util *qu, int argc, char **argv,
 	unsigned target = 0;
 	unsigned diffserv = 0;
 	unsigned memlimit = 0;
-	int wash = -1;
 	int overhead = -99999;
 	int flowmode = -1;
 	int atm = -1;
@@ -140,14 +138,6 @@ static int cake_parse_opt(struct qdisc_util *qu, int argc, char **argv,
 		} else if (strcmp(*argv, "diffserv-llt") == 0) {
 			diffserv = 5;
 
-		} else if (strcmp(*argv, "nowash") == 0) {
-			wash = 0;
-		} else if (strcmp(*argv, "wash") == 0) {
-			wash = 1;
-		} else if (strcmp(*argv, "squash") == 0) {
-			diffserv = 1; /* synonym for besteffort wash*/
-			wash = 1;
-
 		} else if (strcmp(*argv, "flowblind") == 0) {
 			flowmode = 0;
 		} else if (strcmp(*argv, "srchost") == 0) {
@@ -292,8 +282,7 @@ static int cake_parse_opt(struct qdisc_util *qu, int argc, char **argv,
 		addattr_l(n, 1024, TCA_CAKE_AUTORATE, &autorate, sizeof(autorate));
 	if (memlimit)
 		addattr_l(n, 1024, TCA_CAKE_MEMORY, &memlimit, sizeof(memlimit));
-	if (wash != -1)
-		addattr_l(n, 1024, TCA_CAKE_WASH, &wash, sizeof(wash));
+
 	tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
 	return 0;
 }
@@ -310,7 +299,6 @@ static int cake_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
 	int overhead = 0;
 	int atm = 0;
 	int autorate = 0;
-	int wash = 0;
 	SPRINT_BUF(b1);
 	SPRINT_BUF(b2);
 
@@ -392,10 +380,6 @@ static int cake_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
 			break;
 		};
 	}
-	if (tb[TCA_CAKE_WASH] &&
-	    RTA_PAYLOAD(tb[TCA_CAKE_WASH]) >= sizeof(__u32)) {
-		wash = rta_getattr_u32(tb[TCA_CAKE_WASH]);
-	}
 	if (tb[TCA_CAKE_ATM] &&
 	    RTA_PAYLOAD(tb[TCA_CAKE_ATM]) >= sizeof(__u32)) {
 		atm = rta_getattr_u32(tb[TCA_CAKE_ATM]);
@@ -409,9 +393,6 @@ static int cake_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
 		interval = rta_getattr_u32(tb[TCA_CAKE_RTT]);
 	}
 
-	if (wash)
-		fprintf(f,"wash ");
-
 	if (interval)
 		fprintf(f, "rtt %s ", sprint_time(interval, b2));