From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sudeep Holla Subject: Re: [PATCH v3 4/5] ACPI / processor_idle : introduce ARCH_SUPPORTS_ACPI_PROCESSOR_CSTATE Date: Mon, 22 Feb 2016 13:46:26 +0000 Message-ID: <56CB1132.1060202@arm.com> References: <1449065446-26115-1-git-send-email-sudeep.holla@arm.com> <1449065446-26115-5-git-send-email-sudeep.holla@arm.com> <12469811.iv3SctjXxl@vostro.rjw.lan> <56C465CE.50403@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <56C465CE.50403@arm.com> Sender: linux-kernel-owner@vger.kernel.org To: "Rafael J. Wysocki" Cc: Sudeep Holla , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, x86@kernel.org, Al Stone , Lorenzo Pieralisi , Mahesh Sivasubramanian , Ashwin Chaugule , Prashanth Prakash List-Id: linux-acpi@vger.kernel.org Hi Rafael, On 17/02/16 12:21, Sudeep Holla wrote: > > > On 16/02/16 20:18, Rafael J. Wysocki wrote: [..] > >> This way it all should work without any new Kconfig options. >> > > I agree with you in terms of avoiding new Kconfig option. However the > main reason for adding it is to avoid declaring dummy functions and > variables on ARM64. > > It's hard to justify the maintainers as it's totally useless on ARM64. > E.g. boot_option_idle_override, IDLE_NOMWAIT, acpi_unlazy_tlb, > arch_safe_halt. > > Other option is to push those under CONFIG_X86, but then I don't have > much idea on what are all needed for IA64, so took an option that > encapsulates everything under CSTATE feature Kconfig, which is not user > visible and selected by archs supporting it by default. > > I am open to any other alternative. > Whatever alternative methods I tried so far ended up much horrible than this. So any suggestions are much appreciated. -- Regards, Sudeep