Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751797AbeAPCUY (ORCPT + 1 other); Mon, 15 Jan 2018 21:20:24 -0500 Received: from mail-pl0-f67.google.com ([209.85.160.67]:37694 "EHLO mail-pl0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751468AbeAPCTF (ORCPT ); Mon, 15 Jan 2018 21:19:05 -0500 X-Google-Smtp-Source: ACJfBouUely4u1e5VMphu7dVVHvl8c1vdpRevKAuGd3NYdALhTPqM4DMd5RE8Ynpv51htmAaIgQOQA== From: Deepa Dinamani To: tglx@linutronix.de, john.stultz@linaro.org Cc: linux-kernel@vger.kernel.org, arnd@arndb.de, y2038@lists.linaro.org Subject: [PATCH v3 04/10] arch: introduce CONFIG_64BIT_TIME Date: Mon, 15 Jan 2018 18:18:12 -0800 Message-Id: <20180116021818.24791-5-deepa.kernel@gmail.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180116021818.24791-1-deepa.kernel@gmail.com> References: <20180116021818.24791-1-deepa.kernel@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: There are a total of 53 system calls (aside from ioctl) that pass a time_t or derived data structure as an argument, and in order to extend time_t to 64-bit, we have to replace them with new system calls and keep providing backwards compatibility. To avoid adding completely new and untested code for this purpose, we introduce a new CONFIG_64BIT_TIME symbol. Every architecture that supports new 64 bit time_t syscalls enables this config. After this is done for all architectures, the CONFIG_64BIT_TIME symbol will be deleted. Signed-off-by: Arnd Bergmann Signed-off-by: Deepa Dinamani --- arch/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/Kconfig b/arch/Kconfig index 4b839b404dfc..183f6293d596 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -876,6 +876,14 @@ config OLD_SIGACTION config COMPAT_OLD_SIGACTION bool +config 64BIT_TIME + def_bool ARCH_HAS_64BIT_TIME + help + This should be selected by all architectures that need to support + new system calls with a 64-bit time_t. This is relevant on all 32-bit + architectures, and 64-bit architectures as part of compat syscall + handling. + config ARCH_NO_COHERENT_DMA_MMAP bool -- 2.14.1