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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7AB7DC433EA for ; Fri, 26 Mar 2021 12:41:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4A536619B8 for ; Fri, 26 Mar 2021 12:41:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230167AbhCZMlI (ORCPT ); Fri, 26 Mar 2021 08:41:08 -0400 Received: from foss.arm.com ([217.140.110.172]:58694 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229744AbhCZMks (ORCPT ); Fri, 26 Mar 2021 08:40:48 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 19461143D; Fri, 26 Mar 2021 05:40:48 -0700 (PDT) Received: from net-arm-thunderx2-02.shanghai.arm.com (net-arm-thunderx2-02.shanghai.arm.com [10.169.208.215]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 95E803F7D7; Fri, 26 Mar 2021 05:40:41 -0700 (PDT) From: Jianlin Lv To: bpf@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, kafai@fb.com, songliubraving@fb.com, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, viro@zeniv.linux.org.uk, rdna@fb.com, dvyukov@google.com, nicolas.dichtel@6wind.com, keescook@chromium.org, masahiroy@kernel.org, maheshb@google.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Jianlin.Lv@arm.com, iecedge@gmail.com, nd@arm.com Subject: [PATCH bpf-next] bpf: trace jit code when enable BPF_JIT_ALWAYS_ON Date: Fri, 26 Mar 2021 20:40:30 +0800 Message-Id: <20210326124030.1138964-1-Jianlin.Lv@arm.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When CONFIG_BPF_JIT_ALWAYS_ON is enabled, the value of bpf_jit_enable in /proc/sys is limited to SYSCTL_ONE. This is not convenient for debugging. This patch modifies the value of extra2 (max) to 2 that support developers to emit traces on kernel log. Signed-off-by: Jianlin Lv --- net/core/sysctl_net_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index d84c8a1b280e..aa16883ac445 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -386,7 +386,7 @@ static struct ctl_table net_core_table[] = { .proc_handler = proc_dointvec_minmax_bpf_enable, # ifdef CONFIG_BPF_JIT_ALWAYS_ON .extra1 = SYSCTL_ONE, - .extra2 = SYSCTL_ONE, + .extra2 = &two, # else .extra1 = SYSCTL_ZERO, .extra2 = &two, -- 2.25.1