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From: Ido Schimmel <idosch@mellanox.com>
Date: Wed, 2 Aug 2017 09:56:04 +0200
Subject: mlxsw: spectrum_router: Don't check state when refreshing offload
 indication
Patch-mainline: v4.14-rc1
Git-commit: 1353ee707362478527d54cd0b25d3ac17c47168d
References: bsc#1112374

Previous patch removed the reliance on the counter in the FIB info to
set the offload indication, so we no longer need to keep an offload
state on each FIB entry and can just set or unset the RTNH_F_OFFLOAD
flag in each nexthop.

This is also necessary because we're going to need to refresh the
offload indication whenever the nexthop group associated with the FIB
entry is refreshed. Current check would prevent us from marking a newly
resolved nexthop as offloaded if the FIB entry is already marked as
offloaded.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Tested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c |   13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -394,7 +394,6 @@ struct mlxsw_sp_fib_entry {
 	enum mlxsw_sp_fib_entry_type type;
 	struct list_head nexthop_group_node;
 	struct mlxsw_sp_nexthop_group *nh_group;
-	bool offloaded;
 };
 
 struct mlxsw_sp_fib4_entry {
@@ -2139,8 +2138,6 @@ mlxsw_sp_fib4_entry_offload_unset(struct
 
 static void mlxsw_sp_fib_entry_offload_set(struct mlxsw_sp_fib_entry *fib_entry)
 {
-	fib_entry->offloaded = true;
-
 	switch (fib_entry->fib_node->fib->proto) {
 	case MLXSW_SP_L3_PROTO_IPV4:
 		mlxsw_sp_fib4_entry_offload_set(fib_entry);
@@ -2160,8 +2157,6 @@ mlxsw_sp_fib_entry_offload_unset(struct
 	case MLXSW_SP_L3_PROTO_IPV6:
 		WARN_ON_ONCE(1);
 	}
-
-	fib_entry->offloaded = false;
 }
 
 static void
@@ -2170,17 +2165,13 @@ mlxsw_sp_fib_entry_offload_refresh(struc
 {
 	switch (op) {
 	case MLXSW_REG_RALUE_OP_WRITE_DELETE:
-		if (!fib_entry->offloaded)
-			return;
 		return mlxsw_sp_fib_entry_offload_unset(fib_entry);
 	case MLXSW_REG_RALUE_OP_WRITE_WRITE:
 		if (err)
 			return;
-		if (mlxsw_sp_fib_entry_should_offload(fib_entry) &&
-		    !fib_entry->offloaded)
+		if (mlxsw_sp_fib_entry_should_offload(fib_entry))
 			mlxsw_sp_fib_entry_offload_set(fib_entry);
-		else if (!mlxsw_sp_fib_entry_should_offload(fib_entry) &&
-			 fib_entry->offloaded)
+		else if (!mlxsw_sp_fib_entry_should_offload(fib_entry))
 			mlxsw_sp_fib_entry_offload_unset(fib_entry);
 		return;
 	default: