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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 82CDBCCA483 for ; Tue, 7 Jun 2022 21:31:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1380696AbiFGVbL (ORCPT ); Tue, 7 Jun 2022 17:31:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46202 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1378071AbiFGUes (ORCPT ); Tue, 7 Jun 2022 16:34:48 -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 512921E96D5; Tue, 7 Jun 2022 11:37:22 -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 0E35661564; Tue, 7 Jun 2022 18:37:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1ADECC36B03; Tue, 7 Jun 2022 18:37:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1654627041; bh=SlBPGji7woA4rGOeBaUnM7hABHCKRDfgOmNlCjm/ZjY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=B4wtaeu3AwHYMS7NRoflTlrOxaxYSlcouOaVROFHfEnNMh3yBvWdSP5ND4sbuVihj HPm8NKV1XEuqI9a3m2FGPr5pK5OmiY/qL8x7Z1Y2Z+5U0GFoqbFd7lWVbld4nyB4GB eXkp3Jto2fNLiDTaSToFsoSOgrljZLYyp+3AKkls= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Li Huafei , "Steven Rostedt (Google)" , Sasha Levin Subject: [PATCH 5.17 595/772] tracing: Reset the function filter after completing trampoline/graph selftest Date: Tue, 7 Jun 2022 19:03:07 +0200 Message-Id: <20220607165006.475470301@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220607164948.980838585@linuxfoundation.org> References: <20220607164948.980838585@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Li Huafei [ Upstream commit e35c2d8e22745751cf304ec3fe39616643db2e0a ] The direct trampoline and graph coexistence test sets global_ops to trace only 'trace_selftest_dynamic_test_func', but does not reset it after the test is completed, resulting in the function filter being set already after the system starts. Although it can be reset through the tracefs interface, it is more or less confusing to the user, and we should reset it to trace all functions after the trampoline/graph test completes. Link: https://lkml.kernel.org/r/20220427034119.24668-1-lihuafei1@huawei.com Link: https://lore.kernel.org/all/20220418073958.104029-1-lihuafei1@huawei.com/ Fixes: 130c08065848 ("tracing: Add trampoline/graph selftest") Signed-off-by: Li Huafei Signed-off-by: Steven Rostedt (Google) Signed-off-by: Sasha Levin --- kernel/trace/trace_selftest.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c index abcadbe933bb..a2d301f58ced 100644 --- a/kernel/trace/trace_selftest.c +++ b/kernel/trace/trace_selftest.c @@ -895,6 +895,9 @@ trace_selftest_startup_function_graph(struct tracer *trace, ret = -1; goto out; } + + /* Enable tracing on all functions again */ + ftrace_set_global_filter(NULL, 0, 1); #endif /* Don't test dynamic tracing, the function tracer already did */ -- 2.35.1