From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-f196.google.com ([209.85.210.196]:40013 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727421AbeI0Uno (ORCPT ); Thu, 27 Sep 2018 16:43:44 -0400 Received: by mail-pf1-f196.google.com with SMTP id s5-v6so2040646pfj.7 for ; Thu, 27 Sep 2018 07:25:13 -0700 (PDT) From: Firoz Khan Subject: [PATCH v2 2/5] parisc: add __NR_Linux_syscalls macro with __NR_syscalls Date: Thu, 27 Sep 2018 19:54:24 +0530 Message-ID: <1538058267-3765-3-git-send-email-firoz.khan@linaro.org> In-Reply-To: <1538058267-3765-1-git-send-email-firoz.khan@linaro.org> References: <1538058267-3765-1-git-send-email-firoz.khan@linaro.org> Sender: linux-arch-owner@vger.kernel.org List-ID: 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 Message-ID: <20180927142424.mbEhilKLquNmi1rhKn9uwSAMhwlCecYLKMiDUVQlwrQ@z> __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/uapi/asm/unistd.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h index bb52e12..255c62a 100644 --- a/arch/parisc/include/uapi/asm/unistd.h +++ b/arch/parisc/include/uapi/asm/unistd.h @@ -366,7 +366,11 @@ #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 __NR_Linux_syscalls __NR_syscalls #define LINUX_GATEWAY_ADDR 0x100 -- 1.9.1