Re: ebtables broken for kernel above 2.6.28

[Patrick McHardy <kaber@trash.net>]

Jan Engelhardt wrote:
> On 2009-06-02 12:20:45, Patrick McHardy wrote:
>   
>> On Friday 2009-05-29 19:16, Jan Engelhardt wrote:
>>     
>>> On Friday 2009-05-29 18:20, Bart De Schuymer wrote:
>>>       
>>>> I think it's best to fix this in the kernel if it's possible,
>>>> since we don't want to break compatibility. If the fix has to be
>>>> in userspace, then it must be a fix that still works for older
>>>> kernels.
>>>>
>>>> -#define EBT_MIN_ALIGN (__alignof__(struct ebt_entry_target))
>>>> +#define EBT_MIN_ALIGN (__alignof__(struct _xt_align))
>>>>         
>>> Since the kernel uses xt_align already, it's best for userspace to
>>> do the same.
>>>       
>> But that doesn't work for older kernels. Please don't dismiss
>> compatibility issues that easily. Sometimes things unfortunately do
>> slip through, but I expect people to do their best to fix the
>> problem properly when this happens.
>>     
>
> But if it gets changed back again to ebt_entry_target, it might
> stop working for the combinations it currently works on. :/
>   

Why, ebtables userspace didn't change, which implies it will still work?