netdev - [PATCH net 03/12] net/mlx5: Keep autogroups list ordered

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 25 Oct 2016 18:36:26 +0300
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, Or Gerlitz <ogerlitz@...lanox.com>,
        Leon Romanovsky <leonro@...lanox.com>,
        Paul Blakey <paulb@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [PATCH net 03/12] net/mlx5: Keep autogroups list ordered

From: Paul Blakey <paulb@...lanox.com>

Finding a new autogroup range is done by going over a group list
sorted by each group start index. The search is stopped after finding
the first free range. Adding the newly created group to the list is
wrongly added to the end of the list regardless of its start index as
the parameter of where to insert it is ignored.

This commit makes sure to use that unused parameter to insert
it where requested.

Fixes: f0d22d187473 ('net/mlx5_core: Introduce flow steering autogrouped flow table')
Signed-off-by: Paul Blakey <paulb@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 5da2cc8..17559c8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -879,7 +879,7 @@ static struct mlx5_flow_group *create_flow_group_common(struct mlx5_flow_table *
 	tree_init_node(&fg->node, !is_auto_fg, del_flow_group);
 	tree_add_node(&fg->node, &ft->node);
 	/* Add node to group list */
-	list_add(&fg->node.list, ft->node.children.prev);
+	list_add(&fg->node.list, prev_fg);
 
 	return fg;
 }
@@ -893,7 +893,7 @@ struct mlx5_flow_group *mlx5_create_flow_group(struct mlx5_flow_table *ft,
 		return ERR_PTR(-EPERM);
 
 	lock_ref_node(&ft->node);
-	fg = create_flow_group_common(ft, fg_in, &ft->node.children, false);
+	fg = create_flow_group_common(ft, fg_in, ft->node.children.prev, false);
 	unlock_ref_node(&ft->node);
 
 	return fg;
@@ -1012,7 +1012,7 @@ static struct mlx5_flow_group *create_autogroup(struct mlx5_flow_table *ft,
 						u32 *match_criteria)
 {
 	int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
-	struct list_head *prev = &ft->node.children;
+	struct list_head *prev = ft->node.children.prev;
 	unsigned int candidate_index = 0;
 	struct mlx5_flow_group *fg;
 	void *match_criteria_addr;
-- 
2.7.4