netdev - [RFC net-next 10/11] ip6mr: Remove MFC

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Message-Id: <1519165995-50854-11-git-send-email-yuvalm@mellanox.com>
Date:   Wed, 21 Feb 2018 00:33:14 +0200
From:   Yuval Mintz <yuvalm@...lanox.com>
To:     netdev@...r.kernel.org
Cc:     mlxsw@...lanox.com, kuznet@....inr.ac.ru, yoshfuji@...ux-ipv6.org,
        nikolay@...ulusnetworks.com, Yuval Mintz <yuvalm@...lanox.com>
Subject: [RFC net-next 10/11] ip6mr: Remove MFC_NOTIFY and refactor flags

MFC_NOTIFY exists in ip6mr, probably as some legacy code
[was already removed for ipmr in commit
06bd6c0370bb ("net: ipmr: remove unused MFC_NOTIFY flag and make the flags enum").
Remove it from ip6mr as well, and move the enum into a common file;
Notice MFC_OFFLOAD is currently only used by ipmr.

Signed-off-by: Yuval Mintz <yuvalm@...lanox.com>
---
 include/linux/mroute.h      | 9 ---------
 include/linux/mroute6.h     | 3 ---
 include/linux/mroute_base.h | 9 +++++++++
 net/ipv6/ip6mr.c            | 3 ---
 4 files changed, 9 insertions(+), 15 deletions(-)

diff --git a/include/linux/mroute.h b/include/linux/mroute.h
index 63b36e6..7ed82e4 100644
--- a/include/linux/mroute.h
+++ b/include/linux/mroute.h
@@ -65,15 +65,6 @@ struct vif_entry_notifier_info {
 
 #define VIFF_STATIC 0x8000
 
-/* mfc_flags:
- * MFC_STATIC - the entry was added statically (not by a routing daemon)
- * MFC_OFFLOAD - the entry was offloaded to the hardware
- */
-enum {
-	MFC_STATIC = BIT(0),
-	MFC_OFFLOAD = BIT(1),
-};
-
 struct mfc_cache_cmp_arg {
 	__be32 mfc_mcastgrp;
 	__be32 mfc_origin;
diff --git a/include/linux/mroute6.h b/include/linux/mroute6.h
index 6acf576..1ac38e6 100644
--- a/include/linux/mroute6.h
+++ b/include/linux/mroute6.h
@@ -81,9 +81,6 @@ struct mfc6_cache {
 	};
 };
 
-#define MFC_STATIC		1
-#define MFC_NOTIFY		2
-
 #define MFC_ASSERT_THRESH (3*HZ)		/* Maximal freq. of asserts */
 
 struct rtmsg;
diff --git a/include/linux/mroute_base.h b/include/linux/mroute_base.h
index edc6e6b..2054118 100644
--- a/include/linux/mroute_base.h
+++ b/include/linux/mroute_base.h
@@ -45,6 +45,15 @@ struct vif_device {
 
 #define VIF_EXISTS(_mrt, _idx) (!!((_mrt)->vif_table[_idx].dev))
 
+/* mfc_flags:
+ * MFC_STATIC - the entry was added statically (not by a routing daemon)
+ * MFC_OFFLOAD - the entry was offloaded to the hardware
+ */
+enum {
+	MFC_STATIC = BIT(0),
+	MFC_OFFLOAD = BIT(1),
+};
+
 /**
  * struct mr_mfc - common multicast routing entries
  * @mnode: rhashtable list
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index d0df242..1717638 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -2208,9 +2208,6 @@ int ip6mr_get_route(struct net *net, struct sk_buff *skb, struct rtmsg *rtm,
 		return err;
 	}
 
-	if (rtm->rtm_flags & RTM_F_NOTIFY)
-		cache->_c.mfc_flags |= MFC_NOTIFY;
-
 	err = __ip6mr_fill_mroute(mrt, skb, cache, rtm);
 	read_unlock(&mrt_lock);
 	return err;
-- 
2.4.3