From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752249AbbCLBTS (ORCPT ); Wed, 11 Mar 2015 21:19:18 -0400 Received: from outbound-smtp01.blacknight.com ([81.17.249.7]:51597 "EHLO outbound-smtp01.blacknight.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751330AbbCLBTQ (ORCPT ); Wed, 11 Mar 2015 21:19:16 -0400 Message-ID: <5500E992.60505@nexus-software.ie> Date: Thu, 12 Mar 2015 01:19:14 +0000 From: "Bryan O'Donoghue" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: "Luis R. Rodriguez" , rientjes@google.com, bhelgaas@google.com, mingo@redhat.com, tglx@linutronix.de, hpa@zytor.com, jgross@suse.com, luto@amacapital.net, andy.shevchenko@gmail.com, thomas.petazzoni@free-electrons.com, JBeulich@suse.com, bp@suse.de CC: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, x86@kernel.org, "Luis R. Rodriguez" , Ingo Molnar Subject: Re: [PATCH v1 1/2] x86: kconfig: remove X86_UP_IOAPIC References: <1426115422-1823-1-git-send-email-mcgrof@do-not-panic.com> <1426115422-1823-2-git-send-email-mcgrof@do-not-panic.com> In-Reply-To: <1426115422-1823-2-git-send-email-mcgrof@do-not-panic.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/03/15 23:10, Luis R. Rodriguez wrote: ACK the concept - the logic to compile up APIC support is circuitous to say the least. Personally think we should just always compile up the APIC code if the arch declares support and let the bootstrap code interrogate CPUID. Who in 2015 is really running a system without an APIC/IO-APIC and tip-of-tree Linux and does that one user care about adding 12k to her kernel ? I suspect not and in any case can force the APIC off with a command line argument > @@ -899,6 +899,7 @@ config X86_UP_APIC > bool "Local APIC support on uniprocessors" if !PCI_MSI Tried to apply this to torvalds-master to test :( Should it ? Which branch are you on here ? Applying: x86: kconfig: remove X86_UP_IOAPIC error: patch failed: arch/x86/Kconfig:899 error: arch/x86/Kconfig: patch does not apply Patch failed at 0001 x86: kconfig: remove X86_UP_IOAPIC