From patchwork Thu Oct 13 16:38:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guo Ren X-Patchwork-Id: 13006232 X-Patchwork-Delegate: kuba@kernel.org 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9938BC4332F for ; Thu, 13 Oct 2022 16:39:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229561AbiJMQjX (ORCPT ); Thu, 13 Oct 2022 12:39:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229471AbiJMQjW (ORCPT ); Thu, 13 Oct 2022 12:39:22 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B386C149DE1; Thu, 13 Oct 2022 09:39:21 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 5EDE0B81FAF; Thu, 13 Oct 2022 16:39:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9944CC433C1; Thu, 13 Oct 2022 16:39:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1665679159; bh=ya/qoW0Gc2SmvObRy5ILWPsW2OUcbomZIOnJvy/U4sQ=; h=From:To:Cc:Subject:Date:From; b=a3XoNy5NBS/3tznQYf8G5r2gujwS6/zZdKkYyOJWQqMbJkdmcnIimsZqqK5brtxFi pg/sWILw09caD2h9P7kwI9g2AiafwwpFqmr/ZovZQXAJYBRTEn3/lWEo0OPcFQ00BE pxF8Q61J5dDNe2TjEVZtfOZZhaKdBQT8ozZDGAw17PK/6AxFvz+zYVfQARpgO7hXEY CcnL11BmsDON9Rwvg6bth70Q6Ntr3KyR8q5599UfMc8M2J2tBEttGQMIf0Ya/mzqwS q5agy8Jb36kgXkmMM28aZVK+EuY/VYSndwLK8o0ITcb1d5VKGnLg06laNK8KDoOOsL VGXpb+6UvZFjQ== From: guoren@kernel.org To: andriy.shevchenko@linux.intel.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, linux@rasmusvillemoes.dk, yury.norov@gmail.com Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Guo Ren , Guo Ren Subject: [PATCH] net: Fixup netif_attrmask_next_and warning Date: Thu, 13 Oct 2022 12:38:57 -0400 Message-Id: <20221013163857.3086718-1-guoren@kernel.org> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Guo Ren Don't pass nr_bits as arg1, cpu_max_bits_warn would cause warning now. ------------[ cut here ]------------ WARNING: CPU: 2 PID: 1 at include/linux/cpumask.h:110 __netif_set_xps_queue+0x14e/0x770 Modules linked in: CPU: 2 PID: 1 Comm: swapper/0 Not tainted 6.0.0-rc4-00018-g854701ba4c39 #324 Hardware name: riscv-virtio,qemu (DT) epc : __netif_set_xps_queue+0x14e/0x770 ra : __netif_set_xps_queue+0x552/0x770 epc : ffffffff806fe448 ra : ffffffff806fe84c sp : ff600000023279d0 gp : ffffffff815fff88 tp : ff600000023a0000 t0 : ff6000000308ab40 t1 : 0000000000000003 t2 : 0000000000000000 s0 : ff60000002327a90 s1 : 0000000000000000 a0 : ff6000000308ab00 a1 : ff6000000308ab00 a2 : ff6000000308a8e8 a3 : 0000000000000004 a4 : 0000000000000000 a5 : 0000000000000000 a6 : 0000000000000000 a7 : 0000000000000000 s2 : 0000000000000000 s3 : 0000000000000000 s4 : ff60000002327aa0 s5 : ffffffff816031c8 s6 : 0000000000000000 s7 : 0000000000000001 s8 : 0000000000000000 s9 : 0000000000000004 s10: ff6000000308a8c0 s11: 0000000000000004 t3 : 0000000000000000 t4 : 0000000000000014 t5 : 0000000000000000 t6 : 0000000000000000 status: 0000000200000120 badaddr: 0000000000000000 cause: 0000000000000003 [] virtnet_set_affinity+0x14a/0x1c0 [] virtnet_probe+0x7fc/0xee2 [] virtio_dev_probe+0x164/0x2de [] really_probe+0x82/0x224 [] __driver_probe_device+0x5a/0xaa [] driver_probe_device+0x2c/0xb8 [] __driver_attach+0x76/0x108 [] bus_for_each_dev+0x4a/0x8e [] driver_attach+0x1a/0x28 [] bus_add_driver+0x13c/0x1a6 [] driver_register+0x4a/0xfc [] register_virtio_driver+0x1c/0x2c [] virtio_net_driver_init+0x7a/0xb0 [] do_one_initcall+0x66/0x2e4 [] kernel_init_freeable+0x28a/0x304 [] kernel_init+0x1e/0x110 [] ret_from_exception+0x0/0x10 ---[ end trace 0000000000000000 ]--- Fixes: 944c417daeb6 ("net: fix cpu_max_bits_warn() usage in netif_attrmask_next{,_and}") Signed-off-by: Guo Ren Signed-off-by: Guo Ren --- net/core/dev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index fa53830d0683..9ec8b10ae329 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2589,8 +2589,8 @@ int __netif_set_xps_queue(struct net_device *dev, const unsigned long *mask, copy = true; /* allocate memory for queue storage */ - for (j = -1; j = netif_attrmask_next_and(j, online_mask, mask, nr_ids), - j < nr_ids;) { + for (j = -1; j < nr_ids; + j = netif_attrmask_next_and(j, online_mask, mask, nr_ids)) { if (!new_dev_maps) { new_dev_maps = kzalloc(maps_sz, GFP_KERNEL); if (!new_dev_maps) {