From patchwork Mon Oct 8 05:16:37 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Firoz Khan X-Patchwork-Id: 10629995 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 43278112B for ; Mon, 8 Oct 2018 05:17:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3285426861 for ; Mon, 8 Oct 2018 05:17:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 266AF2847A; Mon, 8 Oct 2018 05:17:35 +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 BED7626861 for ; Mon, 8 Oct 2018 05:17:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726695AbeJHM1U (ORCPT ); Mon, 8 Oct 2018 08:27:20 -0400 Received: from mail-pg1-f196.google.com ([209.85.215.196]:34732 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726699AbeJHM1U (ORCPT ); Mon, 8 Oct 2018 08:27:20 -0400 Received: by mail-pg1-f196.google.com with SMTP id g12-v6so7296312pgs.1 for ; Sun, 07 Oct 2018 22:17:29 -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=hGlNJsOwHYESLLQiLtBWEm5vORLZrkyzqmoz/cGiVOeLg1DNwx46CFd6KApULQEuYT nu7G/gDJ4LdbvInsR+iZ5EfIhyFFpCske3ClTjbLVVNfKK3Jr+NN9Gx0NEEs+rIPQlOE ZuR91PPPzS+yalnvfjEHolhqTQ+9Cu4Q0MZ5Y= 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=cxpb1SheJiDEBX5PnXcPDLXjENWepAWCjnEZPUbw2XvoObIGCaHbYIZ3LG7coW0Qx8 Q1OEJVBNet2rMGM8ZTDGUtuen2B7MPK1V0YmzyRL+Gw+6/B+xRsdIRNvSxoYsXjyFFad OBUnPjR03dlti9oW851xgtTVe6mNy4jy3teVF4IerE3ZEaNcWpegHWV/7f22UlB6UYX8 E8UKZLL49VbgyFbBL8ddefS9woz61qRe20uK3blk8VeJh2lF8Q7U7Yv9JoGdWMmEBcE6 GPxD5goeFJ53G1/N9zh3qWxsPMFZCtbbWan8NJUZUhXv7vfMrK5nzsnEWQOgqwn4jG1C Ep9g== X-Gm-Message-State: ABuFfojGe9RBdgRHb2qZtDwVJecVXPZ9uau/KSzOrXl4xt9HvmQrYOAG 7XfReohYiDeRTi9rnSh2rEl8bI2boUA= X-Google-Smtp-Source: ACcGV63h92On9iSxabx6KD1l5bfzvq9yxie8gdrxcV6US30NtyMS24i7hbL/8x8V+ByPsdDNoGm/Vw== X-Received: by 2002:a62:dd01:: with SMTP id w1-v6mr23280159pff.129.1538975848545; Sun, 07 Oct 2018 22:17:28 -0700 (PDT) Received: from qualcomm-HP-ZBook-14-G2.qualcomm.com (blr-bdr-fw-01_globalnat_allzones-outside.qualcomm.com. [103.229.18.19]) by smtp.gmail.com with ESMTPSA id j19-v6sm1875919pfi.137.2018.10.07.22.17.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 07 Oct 2018 22:17:28 -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 v3 2/6] parisc: add __NR_Linux_syscalls along with __NR_syscalls Date: Mon, 8 Oct 2018 10:46:37 +0530 Message-Id: <1538975801-13735-3-git-send-email-firoz.khan@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1538975801-13735-1-git-send-email-firoz.khan@linaro.org> References: <1538975801-13735-1-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