From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC108C433FE for ; Tue, 9 Nov 2021 22:22:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B3FEC619E9 for ; Tue, 9 Nov 2021 22:22:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235016AbhKIWZH (ORCPT ); Tue, 9 Nov 2021 17:25:07 -0500 Received: from mail.kernel.org ([198.145.29.99]:40834 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344207AbhKIWXK (ORCPT ); Tue, 9 Nov 2021 17:23:10 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 725DA619EE; Tue, 9 Nov 2021 22:18:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1636496318; bh=0FRINFgcE0ibNBsRgxN0z4DIDom9Wgkvbxes2h9kzaQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XPXqIDGjopqJa1EVYDt0+DC4DrhJxH5OcK+065Y13xWGzOBwmBeJ0zLCWRix12pTp 1Fcd4dLRt7bCyRlspqpBUoLVLIouwJVS/fHHgDsjFm+et4v0OEIzvBFszvPuYjyXwS tRki8QVvwkQ+KLgVwNl3zNE/cCMbuMQHUl4dnvcJUCt9ROaI8mmHVMI5iNRThK2HnA tUmpoG9qFRDx1tdnaJaW4md9d32Pd8AUOsHkTWqlz+Tc1mrpYwOlwXSIm1jZ8RmlMG UAXiE2xs+IPyafV2qoHDBqAwYQQq6DE+J9pUQWmy1BzIZcrhQ0E56KWyn0F4JA8xiL DoU12L+H/PAcA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: wangyugui , Jason Gunthorpe , Sasha Levin , dledford@redhat.com, sean.hefty@intel.com, hal.rosenstock@gmail.com, linux-rdma@vger.kernel.org Subject: [PATCH AUTOSEL 5.15 67/82] RDMA/core: Use kvzalloc when allocating the struct ib_port Date: Tue, 9 Nov 2021 17:16:25 -0500 Message-Id: <20211109221641.1233217-67-sashal@kernel.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211109221641.1233217-1-sashal@kernel.org> References: <20211109221641.1233217-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: wangyugui [ Upstream commit 911a81c9c7092bfd75432ce79b2ef879127ea065 ] The 'struct attribute' flex array contains some struct lock_class_key's which become big when lockdep is turned on. Big enough that some drivers will not load when CONFIG_PROVE_LOCKING=y because they cannot allocate enough memory: WARNING: CPU: 36 PID: 8 at mm/page_alloc.c:5350 __alloc_pages+0x27e/0x3e0 Call Trace: kmalloc_order+0x2a/0xb0 kmalloc_order_trace+0x19/0xf0 __kmalloc+0x231/0x270 ib_setup_port_attrs+0xd8/0x870 [ib_core] ib_register_device+0x419/0x4e0 [ib_core] bnxt_re_task+0x208/0x2d0 [bnxt_re] Link: https://lore.kernel.org/r/20211019002656.17745-1-wangyugui@e16-tech.com Signed-off-by: wangyugui Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- drivers/infiniband/core/sysfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index 6146c3c1cbe5c..8d709986b88c7 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -757,7 +757,7 @@ static void ib_port_release(struct kobject *kobj) if (port->hw_stats_data) kfree(port->hw_stats_data->stats); kfree(port->hw_stats_data); - kfree(port); + kvfree(port); } static void ib_port_gid_attr_release(struct kobject *kobj) @@ -1189,7 +1189,7 @@ static struct ib_port *setup_port(struct ib_core_device *coredev, int port_num, struct ib_port *p; int ret; - p = kzalloc(struct_size(p, attrs_list, + p = kvzalloc(struct_size(p, attrs_list, attr->gid_tbl_len + attr->pkey_tbl_len), GFP_KERNEL); if (!p) -- 2.33.0