From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754886AbdKFXq6 (ORCPT ); Mon, 6 Nov 2017 18:46:58 -0500 Received: from osg.samsung.com ([64.30.133.232]:42096 "EHLO osg.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754615AbdKFXq4 (ORCPT ); Mon, 6 Nov 2017 18:46:56 -0500 Subject: Re: [PATCH] selftests: memfd_test.c: fix compilation warning. To: Lei Yang References: <1509879400-26061-1-git-send-email-Lei.Yang@windriver.com> Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Shuah Khan , Shuah Khan From: Shuah Khan Message-ID: <6a76f65a-a484-ba72-6cc5-85010666359c@osg.samsung.com> Date: Mon, 6 Nov 2017 16:46:53 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: <1509879400-26061-1-git-send-email-Lei.Yang@windriver.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/05/2017 03:56 AM, Lei Yang wrote: > Replace '%d' by '%zu' to fix the following compilation warning. > > memfd_test.c:517:3: warning: format ‘%d’ expects argument of > type ‘int’,but argument 2 has type ‘size_t’ [-Wformat=] > printf("malloc(%d) failed: %m\n", mfd_def_size * 8); > ^ > memfd_test.c: In function ‘mfd_fail_grow_write’: > memfd_test.c:537:3: warning: format ‘%d’ expects argument > of type ‘int’,but argument 2 has type ‘size_t’ [-Wformat=] > printf("malloc(%d) failed: %m\n", mfd_def_size * 8); > > Signed-off-by: Lei Yang > --- > tools/testing/selftests/memfd/memfd_test.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c > index f94c6d1..95df9e6 100644 > --- a/tools/testing/selftests/memfd/memfd_test.c > +++ b/tools/testing/selftests/memfd/memfd_test.c > @@ -514,7 +514,7 @@ static void mfd_assert_grow_write(int fd) > > buf = malloc(mfd_def_size * 8); > if (!buf) { > - printf("malloc(%d) failed: %m\n", mfd_def_size * 8); > + printf("malloc(%zu) failed: %m\n", mfd_def_size * 8); > abort(); > } > > @@ -534,7 +534,7 @@ static void mfd_fail_grow_write(int fd) > > buf = malloc(mfd_def_size * 8); > if (!buf) { > - printf("malloc(%d) failed: %m\n", mfd_def_size * 8); > + printf("malloc(%zu) failed: %m\n", mfd_def_size * 8); > abort(); > } > > Relates to gcc version perhaps. What's your gcc version? thanks, -- Shuah