From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2DDFC433B4 for ; Mon, 19 Apr 2021 08:06:17 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4B1FF61107 for ; Mon, 19 Apr 2021 08:06:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4B1FF61107 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id D136A6B0036; Mon, 19 Apr 2021 04:06:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C9CA36B006E; Mon, 19 Apr 2021 04:06:16 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B15A46B0070; Mon, 19 Apr 2021 04:06:16 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0194.hostedemail.com [216.40.44.194]) by kanga.kvack.org (Postfix) with ESMTP id 8FBCD6B0036 for ; Mon, 19 Apr 2021 04:06:16 -0400 (EDT) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 529F7127B for ; Mon, 19 Apr 2021 08:06:16 +0000 (UTC) X-FDA: 78048383952.09.BD24503 Received: from mail-vs1-f42.google.com (mail-vs1-f42.google.com [209.85.217.42]) by imf14.hostedemail.com (Postfix) with ESMTP id BC756C0007CE for ; Mon, 19 Apr 2021 08:06:05 +0000 (UTC) Received: by mail-vs1-f42.google.com with SMTP id o192so1188685vsd.7 for ; Mon, 19 Apr 2021 01:06:15 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=xwvYd/DWaoOJ1HtbW/KpV/JDzyp2vv8uTX1cZfUsEX0=; b=MDw5C+RvJgg39qSadp0njYi9LVFQltB7GWNSkd3gMuCIiRBT5mNWJLAzwG3b8XkdbQ gg8gJ5StmClIN8GMw2vtiWK+4gA0dkM+t821RunARNFV95RJnE5jCTaEBCAdGFWTC2YP urLPY0VtbkPdj3d02ZBjcnDTXjQmEiLzACnErobsRxEkfT/exD/G3woQEAVQzwFtywjG 1V6N125COAJHB6qRWJhHiNU9Ct5ZYA+yo3NM3RLCkQoFeny47gdmGytrLzAmH8PRvDQ5 k6YMEoh/9rxXYeRTMIPrtf1pd+whNOpB3JwngRB5Ngzhj4yCr8c4oPToSrcZb9kM1F0u 06/g== X-Gm-Message-State: AOAM53203HdsU4GYL5ZNX0HJHw3gRMwPxlHAsHTKHL75kcgoxrI9WdgO iJIewhXYTm5nFLSZq45/Ont6c5XGVEbmRWePpl4= X-Google-Smtp-Source: ABdhPJwwUt9O9+bqGQiINGMpCOolsxRJEQXUZKEY13VJPOONKEyBuZYNCnA4RxtIjZn4JPkquDdN6rbln/JdNExFnKQ= X-Received: by 2002:a05:6102:814:: with SMTP id g20mr319846vsb.42.1618819575411; Mon, 19 Apr 2021 01:06:15 -0700 (PDT) MIME-Version: 1.0 References: <1618550254-14511-1-git-send-email-anshuman.khandual@arm.com> In-Reply-To: <1618550254-14511-1-git-send-email-anshuman.khandual@arm.com> From: Geert Uytterhoeven Date: Mon, 19 Apr 2021 10:06:04 +0200 Message-ID: Subject: Re: [PATCH V2] mm: Define default value for FIRST_USER_ADDRESS To: Anshuman Khandual Cc: Linux MM , Andrew Morton , Richard Henderson , Vineet Gupta , Catalin Marinas , Will Deacon , Guo Ren , Brian Cain , Michal Simek , Thomas Bogendoerfer , Ley Foon Tan , Jonas Bonn , Stefan Kristiansson , Stafford Horne , "James E.J. Bottomley" , Michael Ellerman , Christophe Leroy , Paul Walmsley , Palmer Dabbelt , Heiko Carstens , Yoshinori Sato , "David S. Miller" , Jeff Dike , Thomas Gleixner , Chris Zankel , linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: BC756C0007CE X-Stat-Signature: cj8qk6sw63i57c9s11omm868jcuo9t5r X-Rspamd-Server: rspam02 Received-SPF: none (gmail.com>: No applicable sender policy available) receiver=imf14; identity=mailfrom; envelope-from=""; helo=mail-vs1-f42.google.com; client-ip=209.85.217.42 X-HE-DKIM-Result: none/none X-HE-Tag: 1618819565-791279 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Apr 16, 2021 at 7:17 AM Anshuman Khandual wrote: > Currently most platforms define FIRST_USER_ADDRESS as 0UL duplication the > same code all over. Instead just define a generic default value (i.e 0UL) > for FIRST_USER_ADDRESS and let the platforms override when required. This > makes it much cleaner with reduced code. > > The default FIRST_USER_ADDRESS here would be skipped in > when the given platform overrides its value via . > Signed-off-by: Anshuman Khandual > arch/m68k/include/asm/pgtable_mm.h | 1 - Acked-by: Geert Uytterhoeven 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