Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756713AbaDVOZQ (ORCPT ); Tue, 22 Apr 2014 10:25:16 -0400 Received: from top.free-electrons.com ([176.31.233.9]:49200 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751489AbaDVOZN (ORCPT ); Tue, 22 Apr 2014 10:25:13 -0400 Date: Tue, 22 Apr 2014 11:24:43 -0300 From: Ezequiel Garcia To: Ley Foon Tan Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, lftan.linux@gmail.com, cltang@codesourcery.com Subject: Re: [PATCH 06/28] nios2: Memory management Message-ID: <20140422142443.GB15745@arch.cereza> References: <1397824031-4892-1-git-send-email-lftan@altera.com> <1397824031-4892-5-git-send-email-lftan@altera.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1397824031-4892-5-git-send-email-lftan@altera.com> User-Agent: Mutt/1.5.22 (2013-10-16) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Ley Foon, On Apr 18, Ley Foon Tan wrote: > +/* > + * PAGE_SHIFT determines the page size > + */ > +#define PAGE_SHIFT 12 > +#define PAGE_SIZE 4096 > +#define PAGE_MASK (~(PAGE_SIZE - 1)) > + How about something like this: /* PAGE_SHIFT determines the page size */ #define PAGE_SHIFT 12 #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) #define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) Otherwise, the PAGE_SIZE macro above produces some warnings, IIRC. -- Ezequiel Garc?a, Free Electrons Embedded Linux, Kernel and Android Engineering http://free-electrons.com -- 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/