From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A32F0340A43 for ; Mon, 27 Apr 2026 15:12:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777302768; cv=none; b=GSIGHj+Cm2FoZ5sFcPr5Amv/uUTLrOOwcW4+2aSbVFL2fE6D45gGSBiwj1AtsC9X2cfWCUq1HypNd/3oakVJG0tSZVKqBdYLs4FL3eoRjMGU8d7N5EaA2mmwd3aAL/LFPofdRH34aBR7UeGUlByf15EF9jqbq2DBpu1rs5y498Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777302768; c=relaxed/simple; bh=oEzG6KIS9LOm+BclNKrfGnKYk+0uX4IBFxKkCA3K2qI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oFD2Cjtj7GZe3X6jmI6kiGsTTYPYXd65DnVlqM+T9x9q0cqpIh4C12msio+oBXsOw7DTHhGJ+T1773IqZLeX51LQaEwzwQfDGlyzHfO2Oz7ML0v0vi+gt69nr3VgHiYYewNMF4VXgONic1NkOUyErvvkKFquvx1CY0q2y/25aH4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=h2gD5fiL; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="h2gD5fiL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1777302765; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1jxEnHj0d2Dslqe17siW0C7arZRD0qgC5bF07E72dZk=; b=h2gD5fiL1AUwF5Y8mYOoo3F9XLxG7X2l+U9EsECkxGNuK/OhjcPcvfFlCTfYbrsN5glZdb kbLy+Z65LiZM4BTwww4zeNetTmvf6gTb569JTzSrtqxsdohkTLxIMFyIdRQ75+RNGfbXUn xDU0kqVpJYyvayawwogsOD1cqRv315M= Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-210-3hAN9zCEOpKwiSEc3taOfw-1; Mon, 27 Apr 2026 11:12:40 -0400 X-MC-Unique: 3hAN9zCEOpKwiSEc3taOfw-1 X-Mimecast-MFC-AGG-ID: 3hAN9zCEOpKwiSEc3taOfw_1777302759 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 0D9E51956095; Mon, 27 Apr 2026 15:12:39 +0000 (UTC) Received: from fedora-pc.redhat.corp (headnet01.pony-001.prod.iad2.dc.redhat.com [10.2.32.101]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id E5C77195608E; Mon, 27 Apr 2026 15:12:35 +0000 (UTC) From: Gabriele Monaco To: linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org, Steven Rostedt , Gabriele Monaco , Masami Hiramatsu Cc: Nam Cao , Thomas Weissschuh , Tomas Glozar , John Kacur , Wen Yang Subject: [RFC PATCH 09/12] rv: Add KUnit stub to rv_react() and rv_*_task_monitor_slot() Date: Mon, 27 Apr 2026 17:11:31 +0200 Message-ID: <20260427151134.192971-10-gmonaco@redhat.com> In-Reply-To: <20260427151134.192971-1-gmonaco@redhat.com> References: <20260427151134.192971-1-gmonaco@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Add KUNIT_STATIC_STUB_REDIRECT to allow those functions to be stubbed in a KUnit test. This is useful to catch reaction without creating a custom reactor and going through the effort of setting it from a test. rv_{get/put}_task_monitor_slot() rely on a lock, but this isn't necessary during a unit test, so simply skip the calls. Signed-off-by: Gabriele Monaco --- kernel/trace/rv/rv.c | 5 +++++ kernel/trace/rv/rv_reactors.c | 3 +++ 2 files changed, 8 insertions(+) diff --git a/kernel/trace/rv/rv.c b/kernel/trace/rv/rv.c index ee4e68102f17..f59385a24fa1 100644 --- a/kernel/trace/rv/rv.c +++ b/kernel/trace/rv/rv.c @@ -142,6 +142,7 @@ #include #include #include +#include #ifdef CONFIG_RV_MON_EVENTS #define CREATE_TRACE_POINTS @@ -171,6 +172,8 @@ int rv_get_task_monitor_slot(void) { int i; + KUNIT_STATIC_STUB_REDIRECT(rv_get_task_monitor_slot); + lockdep_assert_held(&rv_interface_lock); if (task_monitor_count == CONFIG_RV_PER_TASK_MONITORS) @@ -192,6 +195,8 @@ int rv_get_task_monitor_slot(void) void rv_put_task_monitor_slot(int slot) { + KUNIT_STATIC_STUB_REDIRECT(rv_put_task_monitor_slot, slot); + lockdep_assert_held(&rv_interface_lock); if (slot < 0 || slot >= CONFIG_RV_PER_TASK_MONITORS) { diff --git a/kernel/trace/rv/rv_reactors.c b/kernel/trace/rv/rv_reactors.c index 460af07f7aba..f9b6a034c022 100644 --- a/kernel/trace/rv/rv_reactors.c +++ b/kernel/trace/rv/rv_reactors.c @@ -63,6 +63,7 @@ #include #include +#include #include "rv.h" @@ -468,6 +469,8 @@ void rv_react(struct rv_monitor *monitor, const char *msg, ...) static DEFINE_WAIT_OVERRIDE_MAP(rv_react_map, LD_WAIT_FREE); va_list args; + KUNIT_STATIC_STUB_REDIRECT(rv_react, monitor, msg); + if (!rv_reacting_on() || !monitor->react) return; -- 2.53.0