From patchwork Mon Aug 19 19:24:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 820478 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 1133D1DC48E; Mon, 19 Aug 2024 19:26:39 +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=1724095599; cv=none; b=SfV+q0uKh+MSZkiyCab2LQrpormgP/sIeLYOFoOF/qcpAmhg8HGfG6GcWCIXW9Eyz0vO1wGBJHHM3SB/ZHqSwDohvR9KvkOZX4GVMJGAYL2nUJ10uaVt10fQEoDAMSrVDAsBghsro9gGkrimy2NYuSk9IsJn/OsgbDqbWaBJomA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724095599; c=relaxed/simple; bh=j9ob7ZYoLp4hP0MnrgcOUFxUwkxx358xO3rY/g4W29c=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=qglM7Q1ftRB0FsClRoUgFWWixPMRWQYhl4UAVDX3om6d/3myJSm6B8GNx4BoCOU7xTAHXuggdhmzSF6DmqjXwxXpql0W9UoJj6DPFut3OIXwvilZUbrTfHJpXHh0DLQg/P63jLvMuDs37Yxeljx4hTgXqEKmzzM3WklUcs1fnwk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ct2gCKg6; 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="Ct2gCKg6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1ECC8C4AF14; Mon, 19 Aug 2024 19:26:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1724095598; bh=j9ob7ZYoLp4hP0MnrgcOUFxUwkxx358xO3rY/g4W29c=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Ct2gCKg69IGce57qBJiGSp+85i7msM6BmHmvMaTzQ09NrIxuigsS0FrV5QSl8Ne6r YdU+n7mGrkTDcEBEfNr7e3fLqtTX9JPxILoMjGnvfjaPJ2LI0ByhcotqZuCVDfLh+D 8Rjo0N+s7mFIHDpV+PFtD+NZKzwH7ZH3p0Sdj1lP4uAnkzJLcCQb0lbndoeLYEIM1k fnJv8GlQraEZkBobUOBaXI5z8W7yL9sZtUoeew6KwaVUPnB2BJLfPvtfckisuVnsCE /HK1w/H5QL8+ANiBj8CmAF+0toYfhZq/6qe5VWblRnlPXCQfA9z6JQTneHkyfKC/Qg V5e5wltDaBHJw== From: Mark Brown Date: Mon, 19 Aug 2024 20:24:26 +0100 Subject: [PATCH RFT v9 5/8] selftests/clone3: Remove redundant flushes of output streams Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240819-clone3-shadow-stack-v9-5-962d74f99464@kernel.org> References: <20240819-clone3-shadow-stack-v9-0-962d74f99464@kernel.org> In-Reply-To: <20240819-clone3-shadow-stack-v9-0-962d74f99464@kernel.org> To: "Rick P. Edgecombe" , Deepak Gupta , Szabolcs Nagy , "H.J. Lu" , Florian Weimer , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Christian Brauner , Shuah Khan Cc: linux-kernel@vger.kernel.org, Catalin Marinas , Will Deacon , jannh@google.com, bsegall@google.com, Yury Khrustalev , Wilco Dijkstra , linux-kselftest@vger.kernel.org, linux-api@vger.kernel.org, Mark Brown , Kees Cook , Kees Cook , Shuah Khan X-Mailer: b4 0.15-dev-37811 X-Developer-Signature: v=1; a=openpgp-sha256; l=1058; i=broonie@kernel.org; h=from:subject:message-id; bh=j9ob7ZYoLp4hP0MnrgcOUFxUwkxx358xO3rY/g4W29c=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBmw5xGTQsGFnnsXkzj9iyPYSkbO7zgaru1OyjNN0ln fdOTBH+JATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCZsOcRgAKCRAk1otyXVSH0KSVB/ 91+3bGW9gkcum5wjok8hv+EPZDZx0MgWGLJcZEcI1Y85ek4duInhVz+alA4WqQPQPKwdd7c5gwGrKi eBnOOppXivd5IHS5G7vxTpHUQrCeUXJBNbpycQ/oop6yHb6nshnKjbgcBCVfbxSQmCKKH/o3Ql3zaW WmEeNuYbV1DuocsU8yDxcYniiC6CIMIySJXfP4ERdo46s1S2l1Kmw4eMYUi7dH8dIwtjbi0vbSaag6 ryN/kuS3Ncg/pAMclIjITW5XqA524+zzCWqmkjivdvy1TTF/4RKvPDgw7IvI3HGhqw4oq7uFEw7a5o Jiu928fQSbnzYx6lT653nnHCpHhgh8 X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB Since there were widespread issues with output not being flushed the kselftest framework was modified to explicitly set the output streams unbuffered in commit 58e2847ad2e6 ("selftests: line buffer test program's stdout") so there is no need to explicitly flush in the clone3 tests. Reviewed-by: Kees Cook Tested-by: Kees Cook Acked-by: Shuah Khan Signed-off-by: Mark Brown --- tools/testing/selftests/clone3/clone3_selftests.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/clone3/clone3_selftests.h b/tools/testing/selftests/clone3/clone3_selftests.h index 3d2663fe50ba..39b5dcba663c 100644 --- a/tools/testing/selftests/clone3/clone3_selftests.h +++ b/tools/testing/selftests/clone3/clone3_selftests.h @@ -35,8 +35,6 @@ struct __clone_args { static pid_t sys_clone3(struct __clone_args *args, size_t size) { - fflush(stdout); - fflush(stderr); return syscall(__NR_clone3, args, size); }