[Cake] Compiling under net-next

[George Amanakis]

It seems the change was introduced here:
https://patchwork.kernel.org/patch/9671147/

I drafted the following very simplistic patch, could somebody take a
look at it?



>From 0c3c135cc65fa1fdd2521490c8f1edee41edcea2 Mon Sep 17 00:00:00 2001
From: gamanakis <g_amanakis at yahoo.com>
Date: Sun, 18 Mar 2018 22:20:38 -0400
Subject: [PATCH] Fixes for 4.16

---
 sch_cake.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/sch_cake.c b/sch_cake.c
index 9f2acb5..f18273b 100644
--- a/sch_cake.c
+++ b/sch_cake.c
@@ -2364,7 +2364,12 @@ static void cake_reconfigure(struct Qdisc *sch)
 	q->buffer_limit = min(q->buffer_limit, max(sch->limit *
psched_mtu(qdisc_dev(sch)), q->buffer_config_limit));
 }
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 16, 0)
 static int cake_change(struct Qdisc *sch, struct nlattr *opt)
+#else
+static int cake_change(struct Qdisc *sch, struct nlattr *opt,
+		struct netlink_ext_ack *extack)
+#endif
 {
 	struct cake_sched_data *q = qdisc_priv(sch);
 	struct nlattr *tb[TCA_CAKE_MAX + 1];
@@ -2500,7 +2505,12 @@ static void cake_destroy(struct Qdisc *sch)
 		cake_free(q->tins);
 }
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 16, 0)
 static int cake_init(struct Qdisc *sch, struct nlattr *opt)
+#else
+static int cake_init(struct Qdisc *sch, struct nlattr *opt,
+		struct netlink_ext_ack *extack)
+#endif
 {
 	struct cake_sched_data *q = qdisc_priv(sch);
 	int i, j;
@@ -2520,7 +2530,11 @@ static int cake_init(struct Qdisc *sch, struct
nlattr *opt)
 	q->cur_flow  = 0;
 
 	if (opt) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 16, 0)
 		int err = cake_change(sch, opt);
+#else
+		int err = cake_change(sch, opt, extack);
+#endif
 
 		if (err)
 			return err;
-- 
2.16.2