Date: Sat, 15 Sep 2001 12:26:15 -0700 From: "David O'Brien" <dev-null@NUXI.com> To: Warner Losh <imp@harmony.village.org> Cc: hackers@FreeBSD.ORG, Yar Tikhiy <yar@FreeBSD.ORG>, Mike Smith <msmith@FreeBSD.ORG>, msmith@mass.dis.org Subject: Re: Driver structures & alignment Message-ID: <20010915122615.A72222@dragon.nuxi.com> In-Reply-To: <200109151813.f8FIDwW02011@harmony.village.org>; from imp@harmony.village.org on Sat, Sep 15, 2001 at 12:13:58PM -0600 References: <20010915110337.B53569@dragon.nuxi.com> <yar@freebsd.org> <200109132309.f8DN9vX03967@mass.dis.org> <20010914122344.A38530@snark.rinet.ru> <20010915110337.B53569@dragon.nuxi.com> <200109151813.f8FIDwW02011@harmony.village.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sat, Sep 15, 2001 at 12:13:58PM -0600, Warner Losh wrote: > In message <20010915110337.B53569@dragon.nuxi.com> "David O'Brien" writes: > : It is best to order this from largest to smallest size if you are worried > : about alignment holes, etc. > : > : int64_t d; /* 8-byte boundary */ > : int32_t c; /* 4-byte boundary */ > : int32_t f; /* 4-byte boundary */ > : int16_t a; > : int16_t b; > : int8_t e[4]; > > unfortunately, there are many device structures that are passed around > via DMA and hte like that don't let you do this... How come? The struct represents some [semi-]physical organization? -- -- David (obrien@FreeBSD.org) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20010915122615.A72222>