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 27F203EDE68; Tue, 12 May 2026 18:06:53 +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=1778609213; cv=none; b=cauxJ62O+M94U8TlKQ9V/3WJoZ6XdN0WaTzcbqw6PenpvZ5qAJQ5Pej5Fy8N8CH1/LsxYEVubRKLx3j/GnjRjLJLVOQcSZR/AC02uVuMoo+P0SAEBrOu5fJKna2r6hyzu/1qWikiajU0Jjf/NpQ7z3SxeuT03J9YNUsrNYTflV0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778609213; c=relaxed/simple; bh=GeHMOXG2bbfrNACNEL3l+KgYb3D0t7nn0HmwDeKtnVE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ah6HmnL5AhMhPmUw/m3w85+AiCaxWz+YRnD0yPuPWlp+aUvcurgxaq86y9odTBBLqEvKfFEvSngo5Q6Ps//bA4Jplk1UK0BYn0DPt7kSdVFX1Xoa9JDQTIWaNhxR0evVLhsfz5B9384j61BcQKv+ue+cAzl1DfmwICC7bVBbu2k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=KKCdjKAe; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="KKCdjKAe" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AF952C2BCB0; Tue, 12 May 2026 18:06:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1778609213; bh=GeHMOXG2bbfrNACNEL3l+KgYb3D0t7nn0HmwDeKtnVE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KKCdjKAeMX3IV/UBvAjEEmtHF7IVbMo+PamRAy/qU48VwSe1e5co8Eue2QzoguzuW x7OCJqJofBOZLA+jHB1yM+zgF9BBGXoJg25B9LktDzNsAcluwIeoNT/zlcQjM9aQzI stvq98pDYfgc/IGwqhzWc3lHkWCpQAxq+/AKC6fc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thomas Gleixner , "Peter Zijlstra (Intel)" , Dmitry Vyukov Subject: [PATCH 7.0 107/307] selftests/rseq: Skip tests if time slice extensions are not available Date: Tue, 12 May 2026 19:38:22 +0200 Message-ID: <20260512173942.383729808@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260512173940.117428952@linuxfoundation.org> References: <20260512173940.117428952@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thomas Gleixner commit 02b44d943b3adddc3a15c1da97045e205b7d14c1 upstream. 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 Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Dmitry Vyukov Tested-by: Dmitry Vyukov Link: https://patch.msgid.link/20260428224427.597838491%40kernel.org Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- 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;