Patch "net/mlx5: Fix create autogroup prev initializer" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

net/mlx5: Fix create autogroup prev initializer

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
net-mlx5-fix-create-autogroup-prev-initializer.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Paul Blakey <[email protected]>
Date: Fri, 10 Mar 2017 14:33:01 +0200
Subject: net/mlx5: Fix create autogroup prev initializer

From: Paul Blakey <[email protected]>

[ Upstream commit af36370569eb37420e1e78a2e60c277b781fcd00 ]

The autogroups list is a list of non overlapping group boundaries sorted by their start index. If the autogroups list wasn't empty and an empty group slot was found at the start of the list, the new group was added to the end of the list instead of the beginning, as the prev initializer was incorrect.
When this was repeated, it caused multiple groups to have overlapping boundaries.

Fixed that by correctly initializing the prev pointer to the start of the list.

---
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -1015,7 +1015,7 @@ static struct mlx5_flow_group *create_au
 						u32 *match_criteria)
 {
 	int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
-	struct list_head *prev = ft->node.children.prev;
+	struct list_head *prev = &ft->node.children;
 	unsigned int candidate_index = 0;
 	struct mlx5_flow_group *fg;
 	void *match_criteria_addr;

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/net-mlx5-fix-create-autogroup-prev-initializer.patch