This is a note to let you know that I've just added the patch titled mlx5: fix mlx5_get_vector_affinity to start from completion vector 0 to the 4.15-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: mlx5-fix-mlx5_get_vector_affinity-to-start-from-completion-vector-0.patch and it can be found in the queue-4.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 2572cf57d75a7f91835d9a38771e9e76d575d122 Mon Sep 17 00:00:00 2001 From: Sagi Grimberg <sagi@xxxxxxxxxxx> Date: Mon, 5 Feb 2018 16:24:52 +0200 Subject: mlx5: fix mlx5_get_vector_affinity to start from completion vector 0 From: Sagi Grimberg <sagi@xxxxxxxxxxx> commit 2572cf57d75a7f91835d9a38771e9e76d575d122 upstream. The consumers of this routine expects the affinity map of of vector index relative to the first completion vector. The upper layers are not aware of internal/private completion vectors that mlx5 allocates for its own usage. Hence, return the affinity map of vector index relative to the first completion vector. Fixes: 05e0cc84e00c ("net/mlx5: Fix get vector affinity helper function") Reported-by: Logan Gunthorpe <logang@xxxxxxxxxxxx> Tested-by: Max Gurtovoy <maxg@xxxxxxxxxxxx> Reviewed-by: Max Gurtovoy <maxg@xxxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> # v4.15 Signed-off-by: Sagi Grimberg <sagi@xxxxxxxxxxx> Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- include/linux/mlx5/driver.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -1238,7 +1238,7 @@ mlx5_get_vector_affinity(struct mlx5_cor int eqn; int err; - err = mlx5_vector2eqn(dev, vector, &eqn, &irq); + err = mlx5_vector2eqn(dev, MLX5_EQ_VEC_COMP_BASE + vector, &eqn, &irq); if (err) return NULL; Patches currently in stable-queue which might be from sagi@xxxxxxxxxxx are queue-4.15/mlx5-fix-mlx5_get_vector_affinity-to-start-from-completion-vector-0.patch