From patchwork Tue Jul 12 07:52:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 12914586 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 9CD45C433EF for ; Tue, 12 Jul 2022 07:52:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232404AbiGLHwY (ORCPT ); Tue, 12 Jul 2022 03:52:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53492 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232388AbiGLHwV (ORCPT ); Tue, 12 Jul 2022 03:52:21 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C8099D502; Tue, 12 Jul 2022 00:52:20 -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 EF0FDB81614; Tue, 12 Jul 2022 07:52:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CCD2EC3411E; Tue, 12 Jul 2022 07:52:12 +0000 (UTC) From: Huacai Chen To: Arnd Bergmann , Thomas Bogendoerfer , Geert Uytterhoeven , Michal Simek , Yoshinori Sato , Rich Felker , Jeff Dike , Richard Weinberger , Anton Ivanov Cc: loongarch@lists.linux.dev, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Huacai Chen , Guo Ren , Xuerui Wang , Jiaxun Yang , linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-sh@vger.kernel.org, linux-um@lists.infradead.org, Huacai Chen , stable@vger.kernel.org Subject: [PATCH 1/6] MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK Date: Tue, 12 Jul 2022 15:52:50 +0800 Message-Id: <20220712075255.1345991-1-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected, cpu_max_bits_warn() generates a runtime warning similar as below while we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit) instead of NR_CPUS to iterate CPUs. [ 3.052463] ------------[ cut here ]------------ [ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0 [ 3.070072] Modules linked in: efivarfs autofs4 [ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052 [ 3.084034] Hardware name: Loongson Loongson-3A4000-7A1000-1w-V0.1-CRB/Loongson-LS3A4000-7A1000-1w-EVB-V1.21, BIOS Loongson-UDK2018-V2.0.04082-beta7 04/27 [ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000 [ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430 [ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff [ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890 [ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa [ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000 [ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000 [ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000 [ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286 [ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c [ 3.195868] ... [ 3.199917] Call Trace: [ 3.203941] [<98000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9800000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<980000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9800000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9800000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<98000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<98000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<98000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<98000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9800000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9800000000202fe4>] handle_syscall+0xc4/0x160 [ 3.281824] ---[ end trace 8b484262b4b8c24c ]--- Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen --- arch/mips/kernel/proc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c index 4184d641f05e..33a02f3814f5 100644 --- a/arch/mips/kernel/proc.c +++ b/arch/mips/kernel/proc.c @@ -172,7 +172,7 @@ static void *c_start(struct seq_file *m, loff_t *pos) { unsigned long i = *pos; - return i < NR_CPUS ? (void *) (i + 1) : NULL; + return i < nr_cpu_ids ? (void *) (i + 1) : NULL; } static void *c_next(struct seq_file *m, void *v, loff_t *pos) From patchwork Tue Jul 12 07:52:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 12914587 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 296C3C433EF for ; Tue, 12 Jul 2022 07:53:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232500AbiGLHxE (ORCPT ); Tue, 12 Jul 2022 03:53:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54118 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232486AbiGLHw6 (ORCPT ); Tue, 12 Jul 2022 03:52:58 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 36B699CE07; Tue, 12 Jul 2022 00:52:57 -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 dfw.source.kernel.org (Postfix) with ESMTPS id CFD61615BF; Tue, 12 Jul 2022 07:52:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 62FC6C3411E; Tue, 12 Jul 2022 07:52:51 +0000 (UTC) From: Huacai Chen To: Arnd Bergmann , Thomas Bogendoerfer , Geert Uytterhoeven , Michal Simek , Yoshinori Sato , Rich Felker , Jeff Dike , Richard Weinberger , Anton Ivanov Cc: loongarch@lists.linux.dev, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Huacai Chen , Guo Ren , Xuerui Wang , Jiaxun Yang , linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-sh@vger.kernel.org, linux-um@lists.infradead.org, Huacai Chen , stable@vger.kernel.org Subject: [PATCH 2/6] LoongArch: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK Date: Tue, 12 Jul 2022 15:52:51 +0800 Message-Id: <20220712075255.1345991-2-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220712075255.1345991-1-chenhuacai@loongson.cn> References: <20220712075255.1345991-1-chenhuacai@loongson.cn> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected, cpu_max_bits_warn() generates a runtime warning similar as below while we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit) instead of NR_CPUS to iterate CPUs. [ 3.052463] ------------[ cut here ]------------ [ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0 [ 3.070072] Modules linked in: efivarfs autofs4 [ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052 [ 3.084034] Hardware name: Loongson Loongson-3A5000-7A1000-1w-V0.1-CRB/Loongson-LS3A5000-7A1000-1w-EVB-V1.21, BIOS Loongson-UDK2018-V2.0.04082-beta7 04/27 [ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000 [ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430 [ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff [ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890 [ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa [ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000 [ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000 [ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000 [ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286 [ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c [ 3.195868] ... [ 3.199917] Call Trace: [ 3.203941] [<90000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9000000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<900000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9000000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9000000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<90000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<90000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<90000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<90000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9000000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9000000000202fe4>] handle_syscall+0xc4/0x160 [ 3.281824] ---[ end trace 8b484262b4b8c24c ]--- Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen --- arch/loongarch/kernel/proc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/loongarch/kernel/proc.c b/arch/loongarch/kernel/proc.c index e0b5f3b031b1..b12a1f21f864 100644 --- a/arch/loongarch/kernel/proc.c +++ b/arch/loongarch/kernel/proc.c @@ -106,7 +106,7 @@ static void *c_start(struct seq_file *m, loff_t *pos) { unsigned long i = *pos; - return i < NR_CPUS ? (void *)(i + 1) : NULL; + return i < nr_cpu_ids ? (void *)(i + 1) : NULL; } static void *c_next(struct seq_file *m, void *v, loff_t *pos) From patchwork Tue Jul 12 07:52:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 12914590 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 85913C43334 for ; Tue, 12 Jul 2022 07:53:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232020AbiGLHxl (ORCPT ); Tue, 12 Jul 2022 03:53:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55140 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232476AbiGLHxh (ORCPT ); Tue, 12 Jul 2022 03:53:37 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 728812738; Tue, 12 Jul 2022 00:53:36 -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 2C142B816E3; Tue, 12 Jul 2022 07:53:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EDBFAC341CA; Tue, 12 Jul 2022 07:53:28 +0000 (UTC) From: Huacai Chen To: Arnd Bergmann , Thomas Bogendoerfer , Geert Uytterhoeven , Michal Simek , Yoshinori Sato , Rich Felker , Jeff Dike , Richard Weinberger , Anton Ivanov Cc: loongarch@lists.linux.dev, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Huacai Chen , Guo Ren , Xuerui Wang , Jiaxun Yang , linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-sh@vger.kernel.org, linux-um@lists.infradead.org, Huacai Chen , stable@vger.kernel.org Subject: [PATCH 3/6] M68K: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK Date: Tue, 12 Jul 2022 15:52:52 +0800 Message-Id: <20220712075255.1345991-3-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220712075255.1345991-1-chenhuacai@loongson.cn> References: <20220712075255.1345991-1-chenhuacai@loongson.cn> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected, cpu_max_bits_warn() generates a runtime warning similar as below while we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit) instead of NR_CPUS to iterate CPUs. [ 3.052463] ------------[ cut here ]------------ [ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0 [ 3.070072] Modules linked in: efivarfs autofs4 [ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052 [ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000 [ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430 [ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff [ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890 [ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa [ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000 [ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000 [ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000 [ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286 [ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c [ 3.195868] ... [ 3.199917] Call Trace: [ 3.203941] [<90000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9000000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<900000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9000000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9000000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<90000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<90000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<90000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<90000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9000000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9000000000202fe4>] handle_syscall+0xc4/0x160 [ 3.281824] ---[ end trace 8b484262b4b8c24c ]--- Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen --- arch/m68k/kernel/setup_no.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c index 19eea73d3c17..ee03287a386c 100644 --- a/arch/m68k/kernel/setup_no.c +++ b/arch/m68k/kernel/setup_no.c @@ -201,7 +201,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) static void *c_start(struct seq_file *m, loff_t *pos) { - return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL; + return *pos < nr_cpu_ids ? ((void *) 0x12345678) : NULL; } static void *c_next(struct seq_file *m, void *v, loff_t *pos) From patchwork Tue Jul 12 07:52:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 12914591 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 DCDB3CCA47C for ; Tue, 12 Jul 2022 07:54:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232425AbiGLHy1 (ORCPT ); Tue, 12 Jul 2022 03:54:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56446 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232020AbiGLHy0 (ORCPT ); Tue, 12 Jul 2022 03:54:26 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D347929C8A; Tue, 12 Jul 2022 00:54:21 -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 D97D5B816E3; Tue, 12 Jul 2022 07:54:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BDED8C3411E; Tue, 12 Jul 2022 07:54:13 +0000 (UTC) From: Huacai Chen To: Arnd Bergmann , Thomas Bogendoerfer , Geert Uytterhoeven , Michal Simek , Yoshinori Sato , Rich Felker , Jeff Dike , Richard Weinberger , Anton Ivanov Cc: loongarch@lists.linux.dev, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Huacai Chen , Guo Ren , Xuerui Wang , Jiaxun Yang , linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-sh@vger.kernel.org, linux-um@lists.infradead.org, Huacai Chen , stable@vger.kernel.org Subject: [PATCH 4/6] MicroBlaze: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK Date: Tue, 12 Jul 2022 15:52:53 +0800 Message-Id: <20220712075255.1345991-4-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220712075255.1345991-1-chenhuacai@loongson.cn> References: <20220712075255.1345991-1-chenhuacai@loongson.cn> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected, cpu_max_bits_warn() generates a runtime warning similar as below while we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit) instead of NR_CPUS to iterate CPUs. [ 3.052463] ------------[ cut here ]------------ [ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0 [ 3.070072] Modules linked in: efivarfs autofs4 [ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052 [ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000 [ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430 [ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff [ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890 [ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa [ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000 [ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000 [ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000 [ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286 [ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c [ 3.195868] ... [ 3.199917] Call Trace: [ 3.203941] [<90000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9000000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<900000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9000000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9000000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<90000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<90000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<90000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<90000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9000000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9000000000202fe4>] handle_syscall+0xc4/0x160 [ 3.281824] ---[ end trace 8b484262b4b8c24c ]--- Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen --- arch/microblaze/kernel/cpu/mb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/microblaze/kernel/cpu/mb.c b/arch/microblaze/kernel/cpu/mb.c index 9581d194d9e4..689de7f75614 100644 --- a/arch/microblaze/kernel/cpu/mb.c +++ b/arch/microblaze/kernel/cpu/mb.c @@ -137,7 +137,7 @@ static void *c_start(struct seq_file *m, loff_t *pos) { int i = *pos; - return i < NR_CPUS ? (void *) (i + 1) : NULL; + return i < nr_cpu_ids ? (void *) (i + 1) : NULL; } static void *c_next(struct seq_file *m, void *v, loff_t *pos) From patchwork Tue Jul 12 07:52:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 12914592 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 57522CCA47C for ; Tue, 12 Jul 2022 07:55:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232397AbiGLHzG (ORCPT ); Tue, 12 Jul 2022 03:55:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232527AbiGLHyr (ORCPT ); Tue, 12 Jul 2022 03:54:47 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3A22822BCD; Tue, 12 Jul 2022 00:54:42 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 19616612B8; Tue, 12 Jul 2022 07:54:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9C8EFC341CA; Tue, 12 Jul 2022 07:54:36 +0000 (UTC) From: Huacai Chen To: Arnd Bergmann , Thomas Bogendoerfer , Geert Uytterhoeven , Michal Simek , Yoshinori Sato , Rich Felker , Jeff Dike , Richard Weinberger , Anton Ivanov Cc: loongarch@lists.linux.dev, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Huacai Chen , Guo Ren , Xuerui Wang , Jiaxun Yang , linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-sh@vger.kernel.org, linux-um@lists.infradead.org, Huacai Chen , stable@vger.kernel.org Subject: [PATCH 5/6] SH: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK Date: Tue, 12 Jul 2022 15:52:54 +0800 Message-Id: <20220712075255.1345991-5-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220712075255.1345991-1-chenhuacai@loongson.cn> References: <20220712075255.1345991-1-chenhuacai@loongson.cn> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected, cpu_max_bits_warn() generates a runtime warning similar as below while we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit) instead of NR_CPUS to iterate CPUs. [ 3.052463] ------------[ cut here ]------------ [ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0 [ 3.070072] Modules linked in: efivarfs autofs4 [ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052 [ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000 [ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430 [ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff [ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890 [ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa [ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000 [ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000 [ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000 [ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286 [ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c [ 3.195868] ... [ 3.199917] Call Trace: [ 3.203941] [<90000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9000000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<900000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9000000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9000000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<90000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<90000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<90000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<90000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9000000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9000000000202fe4>] handle_syscall+0xc4/0x160 [ 3.281824] ---[ end trace 8b484262b4b8c24c ]--- Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen --- arch/sh/kernel/cpu/proc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sh/kernel/cpu/proc.c b/arch/sh/kernel/cpu/proc.c index a306bcd6b341..5f6d0e827bae 100644 --- a/arch/sh/kernel/cpu/proc.c +++ b/arch/sh/kernel/cpu/proc.c @@ -132,7 +132,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) static void *c_start(struct seq_file *m, loff_t *pos) { - return *pos < NR_CPUS ? cpu_data + *pos : NULL; + return *pos < nr_cpu_ids ? cpu_data + *pos : NULL; } static void *c_next(struct seq_file *m, void *v, loff_t *pos) { From patchwork Tue Jul 12 07:52:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huacai Chen X-Patchwork-Id: 12914593 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 C2689CCA47C for ; Tue, 12 Jul 2022 07:56:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232519AbiGLH4T (ORCPT ); Tue, 12 Jul 2022 03:56:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58108 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231804AbiGLH4O (ORCPT ); Tue, 12 Jul 2022 03:56:14 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 686289D502; Tue, 12 Jul 2022 00:56:13 -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 17CD5B81614; Tue, 12 Jul 2022 07:56:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0D570C341C0; Tue, 12 Jul 2022 07:56:05 +0000 (UTC) From: Huacai Chen To: Arnd Bergmann , Thomas Bogendoerfer , Geert Uytterhoeven , Michal Simek , Yoshinori Sato , Rich Felker , Jeff Dike , Richard Weinberger , Anton Ivanov Cc: loongarch@lists.linux.dev, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Huacai Chen , Guo Ren , Xuerui Wang , Jiaxun Yang , linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-sh@vger.kernel.org, linux-um@lists.infradead.org, Huacai Chen , stable@vger.kernel.org Subject: [PATCH 6/6] UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK Date: Tue, 12 Jul 2022 15:52:55 +0800 Message-Id: <20220712075255.1345991-6-chenhuacai@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220712075255.1345991-1-chenhuacai@loongson.cn> References: <20220712075255.1345991-1-chenhuacai@loongson.cn> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected, cpu_max_bits_warn() generates a runtime warning similar as below while we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit) instead of NR_CPUS to iterate CPUs. [ 3.052463] ------------[ cut here ]------------ [ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0 [ 3.070072] Modules linked in: efivarfs autofs4 [ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052 [ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000 [ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430 [ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff [ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890 [ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa [ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000 [ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000 [ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000 [ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286 [ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c [ 3.195868] ... [ 3.199917] Call Trace: [ 3.203941] [<90000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9000000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<900000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9000000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9000000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<90000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<90000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<90000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<90000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9000000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9000000000202fe4>] handle_syscall+0xc4/0x160 [ 3.281824] ---[ end trace 8b484262b4b8c24c ]--- Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen --- arch/um/kernel/um_arch.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index a149a5e9a16a..03177c9907d5 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -93,7 +93,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) static void *c_start(struct seq_file *m, loff_t *pos) { - return *pos < NR_CPUS ? cpu_data + *pos : NULL; + return *pos < nr_cpu_ids ? cpu_data + *pos : NULL; } static void *c_next(struct seq_file *m, void *v, loff_t *pos)