This is a note to let you know that I've just added the patch titled
net/mlx5: DR, Fix wrong allocation of modify hdr pattern
to the 6.4-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-dr-fix-wrong-allocation-of-modify-hdr-pattern.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8bfe1e19fb96d89fce14302e35cba0cd9f39d0a1 Mon Sep 17 00:00:00 2001
From: Yevgeny Kliteynik <kliteyn@xxxxxxxxxx>
Date: Wed, 26 Jul 2023 14:38:03 +0300
Subject: net/mlx5: DR, Fix wrong allocation of modify hdr pattern
From: Yevgeny Kliteynik <kliteyn@xxxxxxxxxx>
commit 8bfe1e19fb96d89fce14302e35cba0cd9f39d0a1 upstream.
Fixing wrong calculation of the modify hdr pattern size,
where the previously calculated number would not be enough
to accommodate the required number of actions.
Fixes: da5d0027d666 ("net/mlx5: DR, Add cache for modify header pattern")
Signed-off-by: Yevgeny Kliteynik <kliteyn@xxxxxxxxxx>
Reviewed-by: Erez Shitrit <erezsh@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ptrn.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ptrn.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ptrn.c
index d6947fe13d56..8ca534ef5d03 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ptrn.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ptrn.c
@@ -82,7 +82,7 @@ dr_ptrn_alloc_pattern(struct mlx5dr_ptrn_mgr *mgr,
u32 chunk_size;
u32 index;
- chunk_size = ilog2(num_of_actions);
+ chunk_size = ilog2(roundup_pow_of_two(num_of_actions));
/* HW modify action index granularity is at least 64B */
chunk_size = max_t(u32, chunk_size, DR_CHUNK_SIZE_8);
--
2.41.0
Patches currently in stable-queue which might be from kliteyn@xxxxxxxxxx are
queue-6.4/net-mlx5-dr-fix-wrong-allocation-of-modify-hdr-pattern.patch
