From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751473AbdBAXYT (ORCPT ); Wed, 1 Feb 2017 18:24:19 -0500 Received: from mga14.intel.com ([192.55.52.115]:14938 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751404AbdBAXYR (ORCPT ); Wed, 1 Feb 2017 18:24:17 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,322,1477983600"; d="scan'208";a="59826030" Subject: [RFC][PATCH 6/7] x86, mpx, selftests: Use prctl header instead of magic numbers To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, x86@kernel.org, kirill.shutemov@linux.intel.com, Dave Hansen From: Dave Hansen Date: Wed, 01 Feb 2017 15:24:16 -0800 References: <20170201232408.FA486473@viggo.jf.intel.com> In-Reply-To: <20170201232408.FA486473@viggo.jf.intel.com> Message-Id: <20170201232416.25090E28@viggo.jf.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I got away with just hard-coding the prctl() numbers in the MPX selftests. Include the kernel header so we can just use the symbolic names. --- b/tools/testing/selftests/x86/mpx-mini-test.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff -puN tools/testing/selftests/x86/mpx-mini-test.c~mawa-068-selftests-inc tools/testing/selftests/x86/mpx-mini-test.c --- a/tools/testing/selftests/x86/mpx-mini-test.c~mawa-068-selftests-inc 2017-02-01 15:12:18.083231385 -0800 +++ b/tools/testing/selftests/x86/mpx-mini-test.c 2017-02-01 15:12:18.087231565 -0800 @@ -40,6 +40,8 @@ int zap_all_every_this_many_mallocs = 10 #include "mpx-debug.h" #include "mpx-mm.h" +#include "../../../../include/uapi/linux/prctl.h" + #ifndef __always_inline #define __always_inline inline __attribute__((always_inline) #endif @@ -666,7 +668,7 @@ bool process_specific_init(void) check_clear(dir, size); enable_mpx(dir); check_clear(dir, size); - if (prctl(43, 0, 0, 0, 0)) { + if (prctl(PR_MPX_ENABLE_MANAGEMENT, 0, 0, 0, 0)) { printf("no MPX support\n"); abort(); return false; @@ -676,7 +678,7 @@ bool process_specific_init(void) bool process_specific_finish(void) { - if (prctl(44)) { + if (prctl(PR_MPX_DISABLE_MANAGEMENT)) { printf("no MPX support\n"); return false; } _