From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 556B33F0755; Tue, 28 Apr 2026 23:34:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777419243; cv=none; b=fTLXT8akI7gI3xubxQTvVUIiEuk7PkB7ByNKj0qNBMtLpmwr3hcV3ZW+QhloDppfzMpxYCkg/UyaWxhLtLwFXxHDQE95bVHdU9W/YBU6t0NZV5rlRZNcsSEEsKYpgc+2SMed1oonQwHXFBCPUlT4bvnObOJxROu4UrL3onDHWvQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777419243; c=relaxed/simple; bh=Yc/e2ydR2bgKQuaSQ9GcEXY+tPnsGOUafO5/8Wy2NSw=; h=Date:Message-ID:From:To:Cc:Subject:References:MIME-Version: Content-Type; b=F7jktILcsdj7ROKffOSm1hRYjZM9skP+cfGrw7dIaBh7Hi4t/5uZ5oZvX8+c5AgKRxtwQZze4qYQrSIsknrkajcgmbSbGqE0unZyQLVlE+ojojrbFloB98yC64wa5u7iNB5VAIMoz+x8CvEiZM7Tge71/Xjv7tJVM5ubsoGoP+M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jW0eZcd/; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jW0eZcd/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A7A42C2BCAF; Tue, 28 Apr 2026 23:34:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777419243; bh=Yc/e2ydR2bgKQuaSQ9GcEXY+tPnsGOUafO5/8Wy2NSw=; h=Date:From:To:Cc:Subject:References:From; b=jW0eZcd/h0iiRH6Jgdi4Y4pPvmDdUMAM9Rxrrari0B3o8uEewlQliigRWNnoCoV8d X4vjjlPnZr4BXNoqrsGrCA3+k+Q4KGJZQ1BbSorwoRAdVOUpmRXC5Qw7MT7lYnVEct qah6aL6qXAQHYVEItD7DpB7ep547UeH2mwUgLQURsFU5d+/9Vdb2HNV2aktJSV+VWE Qbh5DLDvOt3vhgiKiIysXD17i9ix2C3P0HWi9FIIU4wn5CXh99UaEGVoxdStzPwtin RxFTBLY+ujzMW1h2QLgSr+p/WdYdhLbAXnw6Exhm1dn3gDGC7VooJ2hySWA6VXmusz SAJN2f8Ll5UcQ== Date: Wed, 29 Apr 2026 01:33:59 +0200 Message-ID: <20260428224427.597838491@kernel.org> User-Agent: quilt/0.68 From: Thomas Gleixner To: LKML Cc: Mathias Stearn , Dmitry Vyukov , Peter Zijlstra , linux-man@vger.kernel.org, Mark Rutland , Mathieu Desnoyers , Chris Kennelly , regressions@lists.linux.dev, Ingo Molnar , Blake Oler , Florian Weimer , Rich Felker , Matthew Wilcox , Greg Kroah-Hartman , Linus Torvalds Subject: [patch 05/10] selftests/rseq: Skip tests if time slice extensions are not available References: <20260428221058.149538293@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Don't fail, skip the test if the extensions are not enabled at compile or runtime. Fixes: 830969e7821a ("selftests/rseq: Implement time slice extension test") Signed-off-by: Thomas Gleixner Cc: stable@vger.kernel.org --- tools/testing/selftests/rseq/slice_test.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) --- a/tools/testing/selftests/rseq/slice_test.c +++ b/tools/testing/selftests/rseq/slice_test.c @@ -124,6 +124,13 @@ FIXTURE_SETUP(slice_ext) { cpu_set_t affinity; + if (rseq_register_current_thread()) + SKIP(return, "RSEQ not supported\n"); + + if (prctl(PR_RSEQ_SLICE_EXTENSION, PR_RSEQ_SLICE_EXTENSION_SET, + PR_RSEQ_SLICE_EXT_ENABLE, 0, 0)) + SKIP(return, "Time slice extension not supported\n"); + ASSERT_EQ(sched_getaffinity(0, sizeof(affinity), &affinity), 0); /* Pin it on a single CPU. Avoid CPU 0 */ @@ -137,11 +144,6 @@ FIXTURE_SETUP(slice_ext) break; } - ASSERT_EQ(rseq_register_current_thread(), 0); - - ASSERT_EQ(prctl(PR_RSEQ_SLICE_EXTENSION, PR_RSEQ_SLICE_EXTENSION_SET, - PR_RSEQ_SLICE_EXT_ENABLE, 0, 0), 0); - self->noise_params.noise_nsecs = variant->noise_nsecs; self->noise_params.sleep_nsecs = variant->sleep_nsecs; self->noise_params.run = 1;