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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 33A44C433F5 for ; Sat, 18 Sep 2021 15:41:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 14C2D61244 for ; Sat, 18 Sep 2021 15:41:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239873AbhIRPdK (ORCPT ); Sat, 18 Sep 2021 11:33:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58244 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229977AbhIRPdJ (ORCPT ); Sat, 18 Sep 2021 11:33:09 -0400 Received: from mail-wm1-x334.google.com (mail-wm1-x334.google.com [IPv6:2a00:1450:4864:20::334]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6E828C061574 for ; Sat, 18 Sep 2021 08:31:45 -0700 (PDT) Received: by mail-wm1-x334.google.com with SMTP id c190-20020a1c9ac7000000b0030b459ea869so3415171wme.4 for ; Sat, 18 Sep 2021 08:31:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=XBn5D96qNN+hLtTEkGlNEQDeJfDTTnYBIFICklr8IFI=; b=QfOqCugsIQAaQ4X/SlBSg3wb123AKQtDHXZAgzI3490QmOswk3s1c68KKdR9i2fA3I JWphRzTum6y+P2z3WOPqV8oy1f9JuTY+gasmjT4hsREYjkTYyJnQr8bhtr7LovWI8SGQ E4wInJp/OruXsgnCrQOJ1Iqc8xZpE2gWso4rYIYmdyQcVd8AbQeQLHJBbnDJnEXHfXHv mcwmjBu2XABZXDqgr3fw7YEt3ndVI5w586mWt+z57gmF2J4y7NDRrOCVOGE5LcAVbsXo 0ZaNadCK98XqwopMMIa6RkAcFwJNKa3TIf7I140SGhyHQa0GHcj7sSnfn/5oIQ49D65Z NIUg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=XBn5D96qNN+hLtTEkGlNEQDeJfDTTnYBIFICklr8IFI=; b=Y8QbSY6B3w7/24NvJWMNcjv/qYVkhU4ZftwVMZ7IH8PTqTObg9fvO8ovIATFgDF+Al MaczWJtAekKspqvZ6H7yCMcXvuOlHjW2L9tZXlKVheb7JLMjYBhvEd3CfOCon1TVEwf5 6izUYvMEyPrd42g6o82o8S447sHeVz9ZFp7wU1qn0q4CVfN1WSR3h86DBWMmRpR7Yc3e uG9kLvlD7wJSxHMLPOJAoOgIWgdeCpu10xE90rpGmm1LcS9D7FYFtRymqxXbDYJ+u6nw yWKmvp5LljrKYdKXi5ObBOBkdSpApGyJuzGZwaUUmhYYFhDAs1BQmXOUXZ9HAvaiTDup /dnw== X-Gm-Message-State: AOAM531Og6UTRQqUXfXAiPOdszotIgyKiksRYv83frF/wbU2uFTlcbxn 6N2XYCcIsugzAu34iNHZnGJDW1tBSEe2ow== X-Google-Smtp-Source: ABdhPJw3Sn3PPRew1mCLW7VCFp9ps/M1wg8lss1iwxz18Bkv0cVxJQvVlHlFv950iyvSv+yspgx63g== X-Received: by 2002:a1c:1b17:: with SMTP id b23mr15613545wmb.139.1631979104037; Sat, 18 Sep 2021 08:31:44 -0700 (PDT) Received: from localhost.localdomain ([2001:8f8:1127:62fc:cf28:f9:da98:9620]) by smtp.gmail.com with ESMTPSA id q201sm15548999wme.2.2021.09.18.08.31.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 18 Sep 2021 08:31:43 -0700 (PDT) From: Carles Pey To: Steven Rostedt , Ingo Molnar , linux-kernel@vger.kernel.org Cc: Carles Pey Subject: [PATCH v2 1/1] ftrace: add unit test for removing trace function Date: Sat, 18 Sep 2021 19:30:43 +0400 Message-Id: <20210918153043.318016-2-carles.pey@gmail.com> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20210918153043.318016-1-carles.pey@gmail.com> References: <20210918153043.318016-1-carles.pey@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A self test is provided for the trace function removal functionality. Signed-off-by: Carles Pey --- kernel/trace/trace_selftest.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c index adf7ef194005..875b4f1a0476 100644 --- a/kernel/trace/trace_selftest.c +++ b/kernel/trace/trace_selftest.c @@ -287,6 +287,40 @@ static int trace_selftest_ops(struct trace_array *tr, int cnt) if (trace_selftest_test_probe3_cnt != 4) goto out_free; + /* Remove trace function from probe 3 */ + func1_name = "!" __stringify(DYN_FTRACE_TEST_NAME); + len1 = strlen(func1_name); + + ftrace_set_filter(&test_probe3, func1_name, len1, 0); + + DYN_FTRACE_TEST_NAME(); + + print_counts(); + + if (trace_selftest_test_probe1_cnt != 3) + goto out_free; + if (trace_selftest_test_probe2_cnt != 2) + goto out_free; + if (trace_selftest_test_probe3_cnt != 4) + goto out_free; + if (cnt > 1) { + if (trace_selftest_test_global_cnt == 0) + goto out_free; + } + if (trace_selftest_test_dyn_cnt == 0) + goto out_free; + + DYN_FTRACE_TEST_NAME2(); + + print_counts(); + + if (trace_selftest_test_probe1_cnt != 3) + goto out_free; + if (trace_selftest_test_probe2_cnt != 3) + goto out_free; + if (trace_selftest_test_probe3_cnt != 5) + goto out_free; + ret = 0; out_free: unregister_ftrace_function(dyn_ops); -- 2.26.3