From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 55D5835F619 for ; Sun, 10 May 2026 22:23:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778451826; cv=none; b=OSxLZzNXZjBZJ/nD7M23e5wWcaNxTrlgdiTCg6wPL8cpbLj/BwrozPQjB03+5vl5wfTactRN6+vwqJrnmcOk/S2QYA4DKFCYxadpjKVsAaAS6cez1uJ3LUDQGZk3GVSEXDX/H2+Iw5HV5T34iKQUX0RJTtNKuAAzRkDtH0cn7gk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778451826; c=relaxed/simple; bh=JYuqqwM3Q/NCyB73B9zggRpuK1CAnClS5m4auWFtysE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CuSOqEyH9m4xg06UQAkhqqVdkJ4tfaYhWwkSmWuclzJrbPxWAUWot7S90PFgJjZZDOFYP5UVuhuzs3J244DthOZm9OC9wFKv8X0NXrNi9QbV55zOYAsT4YbEwOpOM7AhH1nHZ0U/7QJzj5ibbzQ+CnSTgF5w+GzxJ5V3Qbw1IDM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=oucLIli7; arc=none smtp.client-ip=209.85.128.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="oucLIli7" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-48909558b3aso39448965e9.0 for ; Sun, 10 May 2026 15:23:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1778451822; x=1779056622; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ttTut/Uo6EwTGXBeQX8rzoXbswkCtg8c9RsbPycbhWU=; b=oucLIli7DrXVjEWjbS2qvgTUgUd8YbDsIfug42OrN2NSdu4aNZszdR0GxZIP8lTtDu AfxMUECXPay9s+YpYFTpOWOkX9PQaIyx6+gwuT8zENckMFXzRqkboSJqPJWx71W76rij cifZGQGGqSsYYz2733LL0U8MI2JdsCJRjEbTy5M5uDaEYVm1NnCco0Wed4J5kM05eywE O+wfoXlcsNnbgmtPhEoo6/eKu8gvS44hX8gtqAKCeLqXQF1TumQuweILBRWelzD14vjj pZH8pdPz99yMnSEf86VCtIzQadORhDO+DTOGwhtWsTIXRnWNgicTYFmh077hW/7gp7gj rw1Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778451822; x=1779056622; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=ttTut/Uo6EwTGXBeQX8rzoXbswkCtg8c9RsbPycbhWU=; b=ZvKPwU9CNnTJXbkSpUEYvjvMt/KvO3HjsAP2Y88CCxHgoKfuRoxtq0qOpOacvauDJ8 ZRlK8oOKibMWvkbABoCzX0XQfeyk+qRXasU04CEiegcC/yxxtv6zsPjTOOPrDE6U9DuP CjGE41Z4EjAcoRkKCNwTsaoXZQk7aL9Q2RyTr5s/Jnusme43o1NDmuZnDoHvRAEnuCTh XWbAslyUyyGD6E6JrMqPGf/dlhpScRA1hSHag5gipPxA/j3P9eXJ0DymlvMnh9F3bwBt T2Y76zLPFsD7M7r/5TTBtIDP2kvCcREw044w0/XwkTajSyMVqOFRzf0ksJREGy12bBWc ka7Q== X-Forwarded-Encrypted: i=1; AFNElJ+FiVYuaKDtralUzzUQ0YgGA3pX26/mDi6scKe1rHzPPq+yUhiybaFp8FMjcK5x+35pnlRxZnntr/BjJeE=@vger.kernel.org X-Gm-Message-State: AOJu0YwnSkrMz0DmFu/fIILpGot0pykG4uvbvN4wHkrrtz1tBOv/Osx8 k62m4cUCpL8yx4wqm09R+4EGEaQs/8snW4U5lUzmFV81vsBU0PdG7c/s X-Gm-Gg: Acq92OFJ5E4Kn4BKcQHEDyhQkgpluvdIbGKqrBwzGh5IvuBdl0V+ZPuHL/CUNeW3GTC l0b6FtbEUIVzLdM+bvCMmlk+FJx2KfJlLfnevMQDi9J3iX3bGRUuq+LHclk7xmBPaDPH5aoecNi Eu84cJap4EqF/DCvY17mIZLWT40YamLyLhew159ufoEm0uI4t+F3W76KOeayFPxNN50r+wEWkTT 4ycCvyWX06DhE04wXg9RbLQOhMIOD9dDs3ujt4Re2slc7MxBtJeYzXYM/7030ZQaqf+6lyC8kJg Z7FpTmO5VMeEysw0e4x2/oi5Svfhw9OBIChjlznU9Y4gDsRd44bgRhrbpMqQIKDuMz6pUItLE7o 6xIz/BnXbMg5Mrs00qoh9PN6D2NE8l8Nn7dZBuoN9f5wiJX3x3eZv3d5W2Q/Hp306q+9go5HrsG VrlMRaqTwnJJqCGsz9D0Xj83pyWFfbo7aGqudMb5p9o+r3n3FgUeA33kXKp6TXPHPHkZ4HWDgZs xt7uul30qBcN0K37O2pzX0O/LSJioI= X-Received: by 2002:a05:600c:696:b0:489:1c1f:35df with SMTP id 5b1f17b1804b1-48e51e215a4mr196798045e9.10.1778451821571; Sun, 10 May 2026 15:23:41 -0700 (PDT) Received: from SD.localdomain (heme-13-b2-v4wan-167795-cust403.vm32.cable.virginm.net. [81.108.45.148]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48e6f9fbf12sm152399565e9.0.2026.05.10.15.23.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 10 May 2026 15:23:40 -0700 (PDT) From: Prathamesh Deshpande To: Leon Romanovsky , Jason Gunthorpe Cc: Patrisious Haddad , Mark Bloch , Doug Ledford , Haggai Eran , Majd Dibbiny , linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Prathamesh Deshpande Subject: [PATCH v12 1/2] IB/mlx5: Fix transport-domain rollback and initialize lb mutex earlier Date: Sun, 10 May 2026 23:22:53 +0100 Message-ID: <20260510222258.6654-2-prathameshdeshpande7@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260510222258.6654-1-prathameshdeshpande7@gmail.com> References: <20260510222258.6654-1-prathameshdeshpande7@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit mlx5_ib_alloc_transport_domain() allocates a transport domain and then may fail in mlx5_ib_enable_lb(). In that case, the allocated TD is leaked. Fix this by deallocating the TD when mlx5_ib_enable_lb() returns an error. Also return 0 explicitly in the no-loopback-capability success branch, and move dev->lb.mutex initialization to mlx5_ib_stage_init_init(). Destroy dev->lb.mutex in the matching cleanup path and in init failure paths after the mutex is initialized. Fixes: 146d2f1af324 ("IB/mlx5: Allocate a Transport Domain for each ucontext") Signed-off-by: Prathamesh Deshpande --- drivers/infiniband/hw/mlx5/main.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index e02bfb1479f5..f6d9841c2bcf 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -2068,9 +2068,13 @@ static int mlx5_ib_alloc_transport_domain(struct mlx5_ib_dev *dev, u32 *tdn, if ((MLX5_CAP_GEN(dev->mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH) || (!MLX5_CAP_GEN(dev->mdev, disable_local_lb_uc) && !MLX5_CAP_GEN(dev->mdev, disable_local_lb_mc))) - return err; + return 0; + + err = mlx5_ib_enable_lb(dev, true, false); + if (err) + mlx5_cmd_dealloc_transport_domain(dev->mdev, *tdn, uid); - return mlx5_ib_enable_lb(dev, true, false); + return err; } static void mlx5_ib_dealloc_transport_domain(struct mlx5_ib_dev *dev, u32 tdn, @@ -4464,6 +4468,7 @@ static void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev) mlx5_ib_cleanup_multiport_master(dev); WARN_ON(!xa_empty(&dev->odp_mkeys)); mutex_destroy(&dev->cap_mask_mutex); + mutex_destroy(&dev->lb.mutex); WARN_ON(!xa_empty(&dev->sig_mrs)); WARN_ON(!bitmap_empty(dev->dm.memic_alloc_pages, MLX5_MAX_MEMIC_PAGES)); mlx5r_macsec_dealloc_gids(dev); @@ -4486,17 +4491,19 @@ static int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev) dev->port[i].roce.last_port_state = IB_PORT_DOWN; } + mutex_init(&dev->lb.mutex); + err = mlx5r_cmd_query_special_mkeys(dev); if (err) - return err; + goto err_lb_mutex; err = mlx5r_macsec_init_gids_and_devlist(dev); if (err) - return err; + goto err_lb_mutex; err = mlx5_ib_init_multiport_master(dev); if (err) - goto err; + goto err_gids; err = set_has_smi_cap(dev); if (err) @@ -4536,8 +4543,10 @@ static int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev) mlx5_ib_data_direct_cleanup(dev); err_mp: mlx5_ib_cleanup_multiport_master(dev); -err: +err_gids: mlx5r_macsec_dealloc_gids(dev); +err_lb_mutex: + mutex_destroy(&dev->lb.mutex); return err; } @@ -4786,11 +4795,6 @@ static int mlx5_ib_stage_caps_init(struct mlx5_ib_dev *dev) if (err) return err; - if ((MLX5_CAP_GEN(dev->mdev, port_type) == MLX5_CAP_PORT_TYPE_ETH) && - (MLX5_CAP_GEN(dev->mdev, disable_local_lb_uc) || - MLX5_CAP_GEN(dev->mdev, disable_local_lb_mc))) - mutex_init(&dev->lb.mutex); - if (MLX5_CAP_GEN_64(dev->mdev, general_obj_types) & MLX5_GENERAL_OBJ_TYPES_CAP_VIRTIO_NET_Q) { err = mlx5_ib_init_var_region(dev); -- 2.43.0