On Tue, May 13, 2014 at 1:25 PM, Andrey Korolyov <and...@xdel.ru> wrote:
> On Wed, May 14, 2014 at 12:19 AM, Jesse Gross <je...@nicira.com> wrote:
>> On Tue, May 13, 2014 at 1:58 AM, Andrey Korolyov <and...@xdel.ru> wrote:
>>> On Tue, May 13, 2014 at 4:41 AM, Jesse Gross <je...@nicira.com> wrote:
>>>> On Mon, May 12, 2014 at 2:04 PM, Andrey Korolyov <and...@xdel.ru> wrote:
>>>>> On Tue, May 13, 2014 at 12:58 AM, Jesse Gross <je...@nicira.com> wrote:
>>>>>> On Sat, May 10, 2014 at 2:13 PM, Andrey Korolyov <and...@xdel.ru> wrote:
>>>>>>> Hello,
>>>>>>>
>>>>>>> sorry for bringing this old thread on top, but right now building
>>>>>>> against current RHEL 3.10.121.el7 seems not possible without
>>>>>>> patchwork. After fixing some obvious kversion checks and code
>>>>>>> snippets, I had stuck on f067987973facf28916a2f5ee48bf02ce5938bf8:
>>>>>>>
>>>>>>> In file included from
>>>>>>> /builder/rpmbuild/BUILD/openvswitch-2.1.3/_default/../datapath/linux/compat/include/net/gre.h:9:0,
>>>>>>>                  from
>>>>>>> /builder/rpmbuild/BUILD/openvswitch-2.1.3/_default/datapath/linux/vport-gre.c:44:
>>>>>>> include/net/gre.h: In function ‘gre_handle_offloads’:
>>>>>>> include/net/gre.h:42:2: error: implicit declaration of function
>>>>>>> ‘iptunnel_handle_offloads’ [-Werror=implicit-function-declaration]
>>>>>>>   return iptunnel_handle_offloads(skb, gre_csum, SKB_GSO_GRE);
>>>>>>>   ^
>>>>>>> include/net/gre.h:42:2: warning: return makes pointer from integer
>>>>>>> without a cast [enabled by default]
>>>>>>> cc1: some warnings being treated as errors
>>>>>>>
>>>>>>> Bare look says that this snippet should be modified more intensively
>>>>>>> than by one-line patch to work well, so I thought it would be better
>>>>>>> to ask there on how to fix this properly.
>>>>>>
>>>>>> What version of OVS is this and which patch are you specifically 
>>>>>> referring to?
>>>>>
>>>>> Sorry if it was unclear, I pointed hash above, it` s 2.1.2. By patch I
>>>>> meant one-liners which helps to mock kernel version checking in the
>>>>> places where conflict of backported functions can take place. I
>>>>> replaced failed checks one by one and then stuck with error above.
>>>>> Actually, both gre.h - from compat/ and from RH kernel headers
>>>>> resulting to this error if one want to try to point them explicitly.
>>>>
>>>> Can you post the changes you had to make to get to this point? I would
>>>> expect that HAVE_GRE_CISCO_REGISTER would be defined and so there
>>>> should be relatively little that is version specific.
>>>>
>>>> Have you also tried branch-2.2 or master?
>>>
>>> There are no such thing in public repo as branch-2.2, so with master
>>> 75264fe5f1ceb73a33bcc8e1adb3ad9aad57237d I`ve got the same. Please
>>> take a look on the attached patch. Also mind that the change in
>>> datapath.c is purely a mock to pass through it to next failure and
>>> shouldn`t go anywhere :)
>>
>> OK - I see. These changes are just miscellaneous backports and not in
>> the tunnel code as I thought you were saying. I don't have a copy of
>> the RHEL 7 beta source handy but it seems like this could be a missing
>> definition in those headers. OVS should just be using the tunnel code
>> from the kernel headers and the use of iptunnel_handle_offloads()
>> would be from there. If they use it, they should also define it...
>
> You can use srpm for headers:
> http://ftp.redhat.com/redhat/rhel/rc/7/ComputeNode/source/tree/Packages/kernel-3.10.0-121.el7.src.rpm

Since you're already working in this code, it might be faster for you
to take a look.
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