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kmod-redhat-mlx5_core/SOURCES/0286-netdrv-net-mlx5-Don-t-...

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From fb95b280014de1cc4cb10e5743b83b00817ac7be Mon Sep 17 00:00:00 2001
From: Alaa Hleihel <ahleihel@redhat.com>
Date: Mon, 1 Jun 2020 15:40:39 -0400
Subject: [PATCH 286/312] [netdrv] net/mlx5: Don't maintain a case of
del_sw_func being null
Message-id: <20200601154102.25980-17-ahleihel@redhat.com>
Patchwork-id: 315721
Patchwork-instance: patchwork
O-Subject: [RHEL8.3 BZ 1842258 16/39] net/mlx5: Don't maintain a case of del_sw_func being null
Bugzilla: 1842258 1840408
RH-Acked-by: Honggang Li <honli@redhat.com>
RH-Acked-by: Kamal Heib <kheib@redhat.com>
RH-Acked-by: Marcelo Leitner <mleitner@redhat.com>
RH-Acked-by: Jarod Wilson <jarod@redhat.com>
Bugzilla: http://bugzilla.redhat.com/1842258
Bugzilla: http://bugzilla.redhat.com/1840408
Upstream: v5.7-rc7
commit 6eb7a268a99bad8346d4baa148a14456d061c1c3
Author: Roi Dayan <roid@mellanox.com>
Date: Mon May 11 16:37:11 2020 +0300
net/mlx5: Don't maintain a case of del_sw_func being null
Add del_sw_func cb for root ns. Now there is no need to
maintain a case of del_sw_func being null when freeing the node.
Fixes: 2cc43b494a6c ("net/mlx5_core: Managing root flow table")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Alaa Hleihel <ahleihel@redhat.com>
Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
---
drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 6927d9a1c910..6343d5df787d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -325,14 +325,10 @@ static void tree_put_node(struct fs_node *node, bool locked)
if (parent_node) {
down_write_ref_node(parent_node, locked);
list_del_init(&node->list);
- if (node->del_sw_func)
- node->del_sw_func(node);
- up_write_ref_node(parent_node, locked);
- } else if (node->del_sw_func) {
- node->del_sw_func(node);
- } else {
- kfree(node);
}
+ node->del_sw_func(node);
+ if (parent_node)
+ up_write_ref_node(parent_node, locked);
node = NULL;
}
if (!node && parent_node)
@@ -2360,6 +2356,11 @@ static int init_root_tree(struct mlx5_flow_steering *steering,
return 0;
}
+static void del_sw_root_ns(struct fs_node *node)
+{
+ kfree(node);
+}
+
static struct mlx5_flow_root_namespace
*create_root_ns(struct mlx5_flow_steering *steering,
enum fs_flow_table_type table_type)
@@ -2386,7 +2387,7 @@ static struct mlx5_flow_root_namespace
ns = &root_ns->ns;
fs_init_namespace(ns);
mutex_init(&root_ns->chain_lock);
- tree_init_node(&ns->node, NULL, NULL);
+ tree_init_node(&ns->node, NULL, del_sw_root_ns);
tree_add_node(&ns->node, NULL);
return root_ns;
--
2.13.6