On Sat, Jun 08, 2002 at 09:16:06AM -0700, John Polstra wrote: > In article <[EMAIL PROTECTED]>, > Archie Cobbs <[EMAIL PROTECTED]> wrote: > > > > I'd like to get rid of this mbuf field "m->m_pkthdr.header". > [...] > > Any comments/objections? > > Yes, please bear in mind that if you change the layout of the mbuf > structures you will probably break binary compatibility with various > commercial network drivers that are shipped in binary form. That's a > big pain for those of us who are forced to use such drivers. For that > reason I don't think you should make this kind of change in -stable. > Current is obviously a different kettle of fish, but even there you > should add fillers to replace any structure elements you remove, if > possible.
While I agree that -STABLE is a more sensitive fish (which is partly why I really don't enjoy dealing with it -- this argument always comes up), I think that these types of changes absolutely need to go into -CURRENT. We shouldn't have to worry about "breaking binary compatibility" in our development releases. I can almost guarantee that a lot of stuff isn't going to work without a rebuild when people decide to go from 4.x to 5.0 anyway. Placing dummy-fillers is just annoying. > John > -- > John Polstra > John D. Polstra & Co., Inc. Seattle, Washington USA > "Disappointment is a good sign of basic intelligence." -- Chögyam Trungpa -- Bosko Milekic [EMAIL PROTECTED] [EMAIL PROTECTED] To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-net" in the body of the message
