Messages in this thread | | | From | Duncan Sands <> | Subject | Re: [PATCH] netpoll endian fixes | Date | Wed, 8 Sep 2004 08:56:55 +0200 |
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On Wednesday 08 September 2004 01:29, Matt Mackall wrote: > On Wed, Sep 08, 2004 at 01:24:43AM +0200, Duncan Sands wrote: > > The big-endians took their revenge in netpoll.c: on i386, > > the ip header length / version nibbles need to be the other > > way round; and the htonl leaves only zeros in tot_len... > > I'm completely baffled as to how length / version nibbles could be > swapped. Endianness here should be a matter of _bytes_.
I also don't understand it. The definition of struct iphdr contains:
#if defined(__LITTLE_ENDIAN_BITFIELD) __u8 ihl:4, version:4; #elif defined (__BIG_ENDIAN_BITFIELD) __u8 version:4, ihl:4;
What does it mean?
All the best,
Duncan. - 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/
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