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[2620:137:e000::1:20]) by mx.google.com with ESMTP id lc1-20020a170906f90100b00988a210d8a3si6046368ejb.239.2023.06.28.06.43.55; Wed, 28 Jun 2023 06:44:20 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231185AbjF1NMi (ORCPT + 99 others); Wed, 28 Jun 2023 09:12:38 -0400 Received: from bg4.exmail.qq.com ([43.155.65.254]:43529 "EHLO bg4.exmail.qq.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231448AbjF1NMf (ORCPT ); Wed, 28 Jun 2023 09:12:35 -0400 X-QQ-mid: bizesmtp82t1687957941t9p5g4ui Received: from linux-lab-host.localdomain ( [116.30.129.193]) by bizesmtp.qq.com (ESMTP) with id ; Wed, 28 Jun 2023 21:12:19 +0800 (CST) X-QQ-SSF: 01200000000000D0V000000A0000000 X-QQ-FEAT: 3M0okmaRx3gc349QTkQ7SU6ffMdAH/eQrZxvNwomvXA+s018/A5CbPdqWJXSW bsMr2cGgOsXAIGORzyCtAvwWtBM3WGjAIgeGNA5LwvZ7A0C3R/qatX7x0uOqiKPa+jnPPoR L6O/pCd7cphqFeTZFLjidIzWD70WfHXKJkoZbFrK5HGGqwJhJ/py1h1SDopPrTdtcEcqOQv lRFN4dnH3wRAXA5a/sh6SEb0XzJiezI5dXuqOf2Nb2WVPqg39e1NbRSSCT8G10sKwrTgS7D X5lHIUSGZX1OYsAM301CgLDgmN8KE+ZBq6zQ8OW3OC/MoqsucGHLIKLSmODCnkZ9jTTZOpI AzADRoZVbljpu1ByHxS64uX+TfoCxi6lPdMSMwN X-QQ-GoodBg: 0 X-BIZMAIL-ID: 10617112051867632203 From: Zhangjin Wu To: thomas@t-8ch.de, w@1wt.eu Cc: falcon@tinylab.org, arnd@arndb.de, david.laight@aculab.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-riscv@lists.infradead.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Subject: [PATCH v5 02/14] tools/nolibc: unistd.h: apply __sysret() helper Date: Wed, 28 Jun 2023 21:11:44 +0800 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:tinylab.org:qybglogicsvrsz:qybglogicsvrsz3a-3 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1769954199299183996?= X-GMAIL-MSGID: =?utf-8?q?1769954199299183996?= Use __sysret() to shrink the whole _syscall() to oneline code. Reviewed-by: Thomas Weißschuh Signed-off-by: Zhangjin Wu --- tools/include/nolibc/unistd.h | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/tools/include/nolibc/unistd.h b/tools/include/nolibc/unistd.h index 0e832e10a0b2..fabc846f797b 100644 --- a/tools/include/nolibc/unistd.h +++ b/tools/include/nolibc/unistd.h @@ -56,16 +56,7 @@ int tcsetpgrp(int fd, pid_t pid) return ioctl(fd, TIOCSPGRP, &pid); } -#define _syscall(N, ...) \ -({ \ - long _ret = my_syscall##N(__VA_ARGS__); \ - if (_ret < 0) { \ - SET_ERRNO(-_ret); \ - _ret = -1; \ - } \ - _ret; \ -}) - +#define _syscall(N, ...) __sysret(my_syscall##N(__VA_ARGS__)) #define _syscall_narg(...) __syscall_narg(__VA_ARGS__, 6, 5, 4, 3, 2, 1, 0) #define __syscall_narg(_0, _1, _2, _3, _4, _5, _6, N, ...) N #define _syscall_n(N, ...) _syscall(N, __VA_ARGS__)