On Thu, Dec 1, 2011 at 6:25 PM, Zhi Yong Wu <zwu.ker...@gmail.com> wrote:
> On Thu, Dec 1, 2011 at 5:55 AM, Jesse Gross <je...@nicira.com> wrote:
>> On Wed, Nov 23, 2011 at 1:58 AM, Zhi Yong Wu <zwu.ker...@gmail.com> wrote:
>>> diff --git a/datapath/linux/compat/include/linux/skbuff.h 
>>> b/datapath/linux/compat/include/linux/skbuff.h
>>> index 311bfdb..22ba2e6 100644
>>> --- a/datapath/linux/compat/include/linux/skbuff.h
>>> +++ b/datapath/linux/compat/include/linux/skbuff.h
>>> @@ -239,7 +239,7 @@ static inline struct page *skb_frag_page(const 
>>> skb_frag_t *frag)
>>>  }
>>>  #endif
>>>
>>> -#if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0)
>>> +#ifndef HAVE_SKB_RESET_MAC_LEN
>>
>> 2.6.40 is the early name for 3.0.  Does it work if you just replace
>> the check with KERNEL_VERSION(2,6,40)?
> Yeah, it can work now, but i don't know if this issue exist on other
> old kernel version < 2.6.40.

Usually we just do these types of checks as we see examples of actual
backporting to avoid having hundreds of tests at configure time.  In
this case, I think the issue is just a difference in how the same
kernel is numbered not backporting, so there isn't really a reason to
believe that this is a bigger problem.

> Should we send one updated patch for this based on your suggestion?

That would be great, thanks.
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