From patchwork Fri Sep 14 08:26:41 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Firoz Khan X-Patchwork-Id: 10600383 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 574D413AD for ; Fri, 14 Sep 2018 08:27:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 106052B19B for ; Fri, 14 Sep 2018 08:27:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 03FB52B276; Fri, 14 Sep 2018 08:27:33 +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 276E52B19B for ; Fri, 14 Sep 2018 08:27:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727194AbeINNkw (ORCPT ); Fri, 14 Sep 2018 09:40:52 -0400 Received: from mail-pl1-f195.google.com ([209.85.214.195]:44153 "EHLO mail-pl1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727839AbeINNkw (ORCPT ); Fri, 14 Sep 2018 09:40:52 -0400 Received: by mail-pl1-f195.google.com with SMTP id ba4-v6so3858806plb.11 for ; Fri, 14 Sep 2018 01:27:30 -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=zMC8k40pj5pQI2mZhgUNgHT0ATkeiBUzIOSkhSJbf2Y=; b=MkyDxRlpTE1z+sXJl9oJhjBkIroORjHP0+gcHo25E0eNQy+Chisu66VCFmPJX6ozic MBrt+uFcIYdHRy0vr/6IMkApBO6zX/WM5gDslHsAYQcflGmpH9tpsb6YYrYWGfd5ysQS op09IT3pdUzvAk58KtyuYH1qix1EK7CJsDgVM= 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=zMC8k40pj5pQI2mZhgUNgHT0ATkeiBUzIOSkhSJbf2Y=; b=mlkcwLgVNmklNLroEu2w0dtgD54oYg8KaLFm5eNBW7ctHghV7HFcRifNUBJ/WZXOvo bVpAJa06D7XdO3mpQ0DwIt2luzvf7YFjta1X5JeCT9vgiC4PnhWoo1x6JlqM0GQRvs+i BVatQHy5NntES0nPo1Z/A4LCRH9xIdFx2RgdrTrEZ6OBUktOBbA5eFXWTqjxhT9R8quA WxMCi32hjbIZcbjtr3EpGD8j7W/R1RM4htB8lpTTsXRevXx5pCbX9sn3DBWZBWu46aJA mkRNp0xHaiCMbTmlPUWhdgSwpS/iLOfaaAF+Vf97jNhs+aTp6fx8Xk98c4RquM8k2WcS 7KZQ== X-Gm-Message-State: APzg51DVJGhjWGlYpLgR2sZGG/hLyzKTA0k0ldWejdScIl5OlSyTovn5 BKdL+H3YE+2PilyQJLvVjkqpsg== X-Google-Smtp-Source: ANB0VdYfPSoSSRwXLVKQlieRirLVJWQ24chmiRdciEzFlWslpnUx7evuTJ3Bm5q1tJNUI56DF28oQA== X-Received: by 2002:a17:902:e088:: with SMTP id cb8-v6mr10976530plb.189.1536913649809; Fri, 14 Sep 2018 01:27:29 -0700 (PDT) Received: from qualcomm-HP-ZBook-14-G2.domain.name ([49.207.60.83]) by smtp.gmail.com with ESMTPSA id q80-v6sm8919855pfd.15.2018.09.14.01.27.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 14 Sep 2018 01:27:29 -0700 (PDT) From: Firoz Khan To: Thibaut Varene , linux-parisc@vger.kernel.org, "James E . J . Bottomley" , Helge Deller , Greg Kroah-Hartman , Philippe Ombredanne , Thomas Gleixner , 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 2/4] parisc: Replace __NR_Linux_syscalls macro with __NR_syscalls Date: Fri, 14 Sep 2018 13:56:41 +0530 Message-Id: <1536913603-4584-3-git-send-email-firoz.khan@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1536913603-4584-1-git-send-email-firoz.khan@linaro.org> References: <1536913603-4584-1-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 information. 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_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'll count the number of syscalls and keep it in a generated 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 name also changed form __NR_Linux_syscalls to __NR_syscalls for making the name convention same across all architecture. While __NR_ syscalls isn't strictly part of the uapi, having it as part of the generated header to simplifies the implementation. Signed-off-by: Firoz Khan --- arch/parisc/include/asm/unistd.h | 2 ++ arch/parisc/include/uapi/asm/unistd.h | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h index fc71edf..71417c1 100644 --- a/arch/parisc/include/asm/unistd.h +++ b/arch/parisc/include/asm/unistd.h @@ -8,6 +8,8 @@ #define SYS_ify(syscall_name) __NR_##syscall_name +#define __NR_Linux_syscalls __NR_syscalls + #ifndef ASM_LINE_SEP # define ASM_LINE_SEP ; #endif diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h index bb52e12..7532817 100644 --- a/arch/parisc/include/uapi/asm/unistd.h +++ b/arch/parisc/include/uapi/asm/unistd.h @@ -366,7 +366,7 @@ #define __NR_statx (__NR_Linux + 349) #define __NR_io_pgetevents (__NR_Linux + 350) -#define __NR_Linux_syscalls (__NR_io_pgetevents + 1) +#define __NR_syscalls (__NR_Linux + 351) #define LINUX_GATEWAY_ADDR 0x100