From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:44244 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936274AbeBUNK7 (ORCPT ); Wed, 21 Feb 2018 08:10:59 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Logan Gunthorpe , Max Gurtovoy , Sagi Grimberg , Doug Ledford Subject: [PATCH 4.15 104/163] mlx5: fix mlx5_get_vector_affinity to start from completion vector 0 Date: Wed, 21 Feb 2018 13:48:53 +0100 Message-Id: <20180221124536.020253137@linuxfoundation.org> In-Reply-To: <20180221124529.931834518@linuxfoundation.org> References: <20180221124529.931834518@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sagi Grimberg 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 Tested-by: Max Gurtovoy Reviewed-by: Max Gurtovoy Cc: # v4.15 Signed-off-by: Sagi Grimberg Signed-off-by: Doug Ledford Signed-off-by: Greg Kroah-Hartman --- 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;