Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755791Ab2FWSvl (ORCPT ); Sat, 23 Jun 2012 14:51:41 -0400 Received: from mail-ob0-f174.google.com ([209.85.214.174]:64894 "EHLO mail-ob0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754811Ab2FWSvi convert rfc822-to-8bit (ORCPT ); Sat, 23 Jun 2012 14:51:38 -0400 MIME-Version: 1.0 In-Reply-To: References: Date: Sat, 23 Jun 2012 20:51:38 +0200 X-Google-Sender-Auth: ebPHM9AIEF7hIwhCugPIXSbE4WM Message-ID: Subject: Re: should there still be arch-specific 4KSTACKS support? From: Geert Uytterhoeven To: "Robert P. J. Day" Cc: Linux Kernel Mailing List , Linux-Arch Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1929 Lines: 46 Broadening the audience... On Sat, Jun 23, 2012 at 5:47 PM, Robert P. J. Day wrote: >  via some convoluted logic, i ended up doing the following search: > > $ grep -r 4KSTACKS * > arch/sh/configs/r7785rp_defconfig:CONFIG_4KSTACKS=y > arch/sh/Kconfig.debug:config 4KSTACKS > arch/sh/include/asm/thread_info.h:#if defined(CONFIG_4KSTACKS) > arch/mn10300/include/asm/thread_info.h:#ifdef CONFIG_4KSTACKS > arch/m68k/Kconfig.machine:config 4KSTACKS > arch/m68k/configs/m5208evb_defconfig:# CONFIG_4KSTACKS is not set > arch/m68k/configs/m5275evb_defconfig:# CONFIG_4KSTACKS is not set > arch/m68k/configs/m5475evb_defconfig:# CONFIG_4KSTACKS is not set > arch/m68k/include/asm/thread_info.h:#ifdef CONFIG_4KSTACKS > arch/c6x/include/asm/thread_info.h:#ifdef CONFIG_4KSTACKS > drivers/lguest/interrupts_and_traps.c:   * Depending on the CONFIG_4KSTACKS option, the Guest can have one or > kernel/lockdep.c:        * hardirq contexts (such as on 4KSTACKS), so only > $ > >  so even though 4KSTACKS support was officially removed in June of > 2010: > > $ git show dcfa7262 > > there's still traces of it, some of it obviously harmless, leftover > cruft, but it would appear that both sh and m68k still provide a > 4KSTACKS config option. > >  how much of that can be tossed as useless? Gr{oetje,eeting}s,                         Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that.                                 -- Linus Torvalds -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/