From patchwork Fri Oct 12 09:43:58 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Firoz Khan X-Patchwork-Id: 10638205 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C199914E2 for ; Fri, 12 Oct 2018 09:44:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id ACDB22BCAB for ; Fri, 12 Oct 2018 09:44:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9DF8A2BCAF; Fri, 12 Oct 2018 09:44:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 41CAC2BCAB for ; Fri, 12 Oct 2018 09:44:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728360AbeJLRQ2 (ORCPT ); Fri, 12 Oct 2018 13:16:28 -0400 Received: from mail-pl1-f196.google.com ([209.85.214.196]:45355 "EHLO mail-pl1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728361AbeJLRQ2 (ORCPT ); Fri, 12 Oct 2018 13:16:28 -0400 Received: by mail-pl1-f196.google.com with SMTP id y15-v6so5670188plr.12 for ; Fri, 12 Oct 2018 02:44:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=FAowNU2Le7w5YJvjpIycOrYvvQJDBUjpEbsXPhhb+kM=; b=aq1ombfV4olvF+Cz+jnwTCKGT+GNGrX0CQ9i8YZUnBP2sJETHM4SQwG156Dq5UPk8V 6szJ/410NKS5EHatc7cRE7rZdL6e4ipIWM5sw6LiU+0Tei/IZ8iZnlLHFpWkrzRAbMe2 B8q8jnYjBgU2g2rrmX73XLYsOT3q3IGoH4mkc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=FAowNU2Le7w5YJvjpIycOrYvvQJDBUjpEbsXPhhb+kM=; b=gp7Sl2bf2TshploVlxopkqT/O+tRN/7sjthVWazxEr9hx8TEoa5BCAH9LhWM2Ocp50 jcVKO+dRKzFOI1V3TO02V3u/E+FIw7qcZctfFqTxInQBP9QuhcQZMg2mIAWKMPHjQoSB Fk0z8ALqrOnUeW5DNW51Qs2NJz01PdrtnM+5S5jZFqkDc6tSEd212Gre1VBjMbckgVaF M4dfyn2fRWniI0hKkCfqiV2HoFVInoSDs5vzujxtuV3yncCKusAmEhlPO7NV677d6jPe DpPSeirplOU8nywyzqfJ0j6SlIqD4st5fmGFr1Y/oi3W1rSyILdhLfixOmv3vUNtw6lS Ap0Q== X-Gm-Message-State: ABuFfoi+grPBpzkK+hOou8ay1LTOwj6SBjLAJlHhLRZVJSup40W8B+qG PJFeYt45fymhjGU0Y6Iq6Nx57Q51nXU= X-Google-Smtp-Source: ACcGV63wMY3NV4zBnbncFTZoEO3QG4sMGGiqXu25rya6JwgOv8wJoRxRIiPjgiybKERGZg8GeRKZTw== X-Received: by 2002:a17:902:3fa5:: with SMTP id a34-v6mr5258818pld.244.1539337492885; Fri, 12 Oct 2018 02:44:52 -0700 (PDT) Received: from qualcomm-HP-ZBook-14-G2.domain.name ([106.51.108.175]) by smtp.gmail.com with ESMTPSA id j19-v6sm1254191pfi.137.2018.10.12.02.44.47 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 12 Oct 2018 02:44:52 -0700 (PDT) From: Firoz Khan To: linux-parisc@vger.kernel.org, "James E . J . Bottomley" , Helge Deller , Thomas Gleixner , Greg Kroah-Hartman , Philippe Ombredanne , Kate Stewart Cc: y2038@lists.linaro.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, arnd@arndb.de, deepa.kernel@gmail.com, marcin.juszkiewicz@linaro.org, firoz.khan@linaro.org Subject: [PATCH v4 2/6] parisc: add __NR_Linux_syscalls along with __NR_syscalls Date: Fri, 12 Oct 2018 15:13:58 +0530 Message-Id: <1539337442-3676-3-git-send-email-firoz.khan@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1539337442-3676-1-git-send-email-firoz.khan@linaro.org> References: <1539337442-3676-1-git-send-email-firoz.khan@linaro.org> Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP __NR_Linux_syscalls macro holds the number of system call exist in PARISC architecture. This macro is currently the part of uapi/asm/unistd.h file. We have to change the value of __NR_Linux_syscalls, if we add or delete a system call. One of the patch in this patch series has a script which will generate a uapi header based on syscall.tbl file. The syscall.tbl file contains the number of system call inform- ation. So we have two option to update __NR_Linux_syscalls value. 1. Update __NR_Linux_syscalls in uapi/asm/unistd.h manually by counting the no.of system calls. No need to update __NR_Linux_syscalls until we either add a new system call or delete an existing system call. 2. We can keep this feature it above mentioned script, that will count the number of syscalls and keep it in a gener- ated file. In this case we don't need to explicitly update __NR_Linux_syscalls in asm/unistd.h file. The 2nd option will be the recommended one. For that, I moved the __NR_Linux_syscalls macro from uapi/asm/unistd.h to asm/ unistd.h. The macro __NR_syscalls also added for making the name convention same across all architecture. While __NR_sys- calls isn't strictly part of the uapi, having it as part of the generated header to simplifies the implementation. We also need to enclose this macro with #ifdef __KERNEL__ to avoid side effects. Signed-off-by: Firoz Khan --- arch/parisc/include/asm/unistd.h | 2 ++ arch/parisc/include/uapi/asm/unistd.h | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h index 93fd9f6..d30fdbcb 100644 --- a/arch/parisc/include/asm/unistd.h +++ b/arch/parisc/include/asm/unistd.h @@ -4,6 +4,8 @@ #include +#define __NR_Linux_syscalls __NR_syscalls + #ifndef __ASSEMBLY__ #define SYS_ify(syscall_name) __NR_##syscall_name diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h index bb52e12..f10d065 100644 --- a/arch/parisc/include/uapi/asm/unistd.h +++ b/arch/parisc/include/uapi/asm/unistd.h @@ -366,7 +366,9 @@ #define __NR_statx (__NR_Linux + 349) #define __NR_io_pgetevents (__NR_Linux + 350) -#define __NR_Linux_syscalls (__NR_io_pgetevents + 1) +#ifdef __KERNEL__ +#define __NR_syscalls 351 +#endif #define LINUX_GATEWAY_ADDR 0x100