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 BC4DC2459FF; Mon, 9 Jun 2025 13:01:46 +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=1749474107; cv=none; b=WxroWxeo1l7ILjbnqC7efPGGLSpBUniIUBdNAzZoOkP06JZnIzaylisTlxJImEoKxC3vcIOSAns1VYEHI53hKxNHZGDRPEqo15KS6qOFo3fxZn6nA/rDPNrU7N2OqxF0qqNgAP5xWGcot6JFckvECAImiVEl1dThLECgPuBakoc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749474107; c=relaxed/simple; bh=/AYgqTLwHHsTkCX7TTH1Na+bth+vthYvgf8svHl0eTc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ssBIsvFibPnZZtN2qt07M7He7+9EAbput5vLdBYgQ98kXx3NiDZ6v61RXyquOARvNr+ZF5Qh7xeDxME+gwQE1g8TaMqhQMveVKdNhXpep+GRnqgCVa2Np571MMvBvQ3yWcpVwRI4nG8fL5w0CAGxCB/B01d5pjo2MFZshWWgqks= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IaIZrzQZ; 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="IaIZrzQZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9B856C4CEF0; Mon, 9 Jun 2025 13:01:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1749474106; bh=/AYgqTLwHHsTkCX7TTH1Na+bth+vthYvgf8svHl0eTc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=IaIZrzQZ+uv1kKDldsV/EvuATu9K0vsuv+7o0wgjGCihOxzLzaxF50T8P5acDCXt9 IyLgZIMB4aAP9c3psnXpFHr6jgs0nDZruT2qXpk7FIMSEKlwDACd5s7xshrIXK9dtC eAMD91M3/JqYmjiBiLWea2DBUzlecYO9cJbevl9XW4QTvMI2YmUZcOxwDyhMi8wFfU KtB6rcAPCCk+InQbnSsF26+d1xINEemGGnczidSU7cy6B+YfsoQxsnAM0bipOoj+IC vUuCBR58EBCX1BmnGYUIWHvqGfPd2a5rzVF8/AOPpZMX3y0S7cbIq4Jlkdtm7LDUC2 dYHeXTNQqmOBg== From: Mark Brown Date: Mon, 09 Jun 2025 13:54:06 +0100 Subject: [PATCH RFT v17 5/8] selftests/clone3: Remove redundant flushes of output streams 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" Content-Transfer-Encoding: 7bit Message-Id: <20250609-clone3-shadow-stack-v17-5-8840ed97ff6f@kernel.org> References: <20250609-clone3-shadow-stack-v17-0-8840ed97ff6f@kernel.org> In-Reply-To: <20250609-clone3-shadow-stack-v17-0-8840ed97ff6f@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-c25d1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1114; i=broonie@kernel.org; h=from:subject:message-id; bh=/AYgqTLwHHsTkCX7TTH1Na+bth+vthYvgf8svHl0eTc=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBoRtsS1oPeDocMgm73asbkgrJDqf/dmIf1MoyVCP7l VlqN7wmJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCaEbbEgAKCRAk1otyXVSH0H38B/ 9+FjvMlTH0jTGI3KZdTd8CvLC+lW4KPtL6YHiZaQ94w5KM+M1BgJXCP4JNn5dCxIo04Zz+hxiTnJrs YLGFZdbPhP2FpRu7udvb8mGzVTrQKSUpHptHWRdTkrF5zbsGV/AiEwuYUOOPUP69JoLUsvJ/f1/kmA pb74UanyIqwuZXsso50Rdlz4OcIJHcAbqklNxFSkFBUePUd/dNX96IRSAR6jAmAkz0I0pXI4/7ntYH zFMMaZIQ4BHBexS9M2ArJjmcsZ28jO+0JeZztPqApTyox9QZ6HSALFbkcR9gGoZKVBFgU2QIH8o+D1 YutT4Wxxubo1mfvGa6WBW36wz+FPAg 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 Reviewed-by: Catalin Marinas 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 eeca8005723f..939b26c86d42 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); } -- 2.39.5