Date: Sat, 05 Jun 2010 15:43:52 -0700 From: Marcel Moolenaar <xcllnt@mac.com> To: Nathan Whitehorn <nwhitehorn@freebsd.org> Cc: svn-src-projects@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r208850 - projects/ppc64/sys/powerpc/include Message-ID: <184A275D-B98A-4DBF-9F4D-22F27B9319DD@mac.com> In-Reply-To: <201006052041.o55KfMF6032155@svn.freebsd.org> References: <201006052041.o55KfMF6032155@svn.freebsd.org>
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On Jun 5, 2010, at 1:41 PM, Nathan Whitehorn wrote: > Author: nwhitehorn > Date: Sat Jun 5 20:41:22 2010 > New Revision: 208850 > URL: http://svn.freebsd.org/changeset/base/208850 > > Log: > BUS_SPACE_UNRESTRICTED is a flag, not an address, so it should be an int, > not a long. This probably isn't right. How would you distinguish between a 32-bit maximum of and unlimited if both can have the value 0xFFFFFFFF. Making BUS_SPACE_UNRESTRICTED a long prevents zero-extension to 64-bit and thus prevents this ambiguity. -- Marcel Moolenaar xcllnt@mac.com
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