Messages in this thread Patch in this message |  | | Date | Fri, 11 May 2001 12:03:41 +0200 | From | Andi Kleen <> | Subject | Re: Source code compatibility in Stable series???? |
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On Fri, May 11, 2001 at 02:56:35AM -0700, David S. Miller wrote: > > Rogier Wolff writes: > > It seems that in 2.4.4 suddenly the function "skb_cow" no longer > > returns the modified skb, but it retuns and integer for > > succes/failure. > > > > This means that for networking modules requiring this function, there > > is no source code compatibilty between 2.4.3 and 2.4.4. > > And skb_datarefp went away too, in fact a ton of things changes. > > Just deal with it.
I guess it would be possible to add a HAVE_ZEROCOPY to skbuff.h to make it a bit easier for single source drivers.
--- include/linux/skbuff.h-o Wed May 9 12:36:44 2001 +++ include/linux/skbuff.h Fri May 11 12:12:43 2001 @@ -29,6 +29,7 @@ #define HAVE_ALLOC_SKB /* For the drivers to know */ #define HAVE_ALIGNABLE_SKB /* Ditto 8) */ #define SLAB_SKB /* Slabified skbuffs */ +#define HAVE_ZEROCOPY /* Zerocopy stack */ #define CHECKSUM_NONE 0 #define CHECKSUM_HW 1
-Andi
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