Messages in this thread | | | Date | Mon, 20 Jun 2011 20:46:00 +0200 | From | Alexander Holler <> | Subject | Re: [PATCH] USB: ehci: use packed,aligned(4) instead of removing the packed attribute |
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Am 20.06.2011 20:39, schrieb Alan Stern: > On Mon, 20 Jun 2011, Alexander Holler wrote: > >> I see it that way: packed is needed to be sure that at least for struct >> ehci_regs there are no padding bytes inbetween the members. > > But is it _really_ needed? > >> It might >> work without, but that depends on the compiler (-version, architecture, >> whatever). > > Have there _ever_ been _any_ combinations of compiler, version, > architecture, whatever, that had unwanted padding bytes in this > structure?
I don't know. But if there would be no doubts, this discussion would not happen and I assume there never would have been an attribute packed there.
Regards,
Alexander
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