On 28 April 2017 at 14:18, Joe Stringer <j...@ovn.org> wrote:
> On 28 April 2017 at 14:02, Greg Rose <gvrose8...@gmail.com> wrote:
>> On Fri, 2017-04-28 at 13:55 -0700, Joe Stringer wrote:
>>> On 27 April 2017 at 16:13, Greg Rose <gvrose8...@gmail.com> wrote:
>>> > Parenthetical imbalance was causing some checks to not run
>>> >
>>> > Signed-off-by: Greg Rose <gvrose8...@gmail.com>
>>> > ---
>>> >  acinclude.m4 | 6 +++---
>>> >  1 file changed, 3 insertions(+), 3 deletions(-)
>>> >
>>> > diff --git a/acinclude.m4 b/acinclude.m4
>>> > index 9f8e30d..0d6647e 100644
>>> > --- a/acinclude.m4
>>> > +++ b/acinclude.m4
>>> > @@ -681,9 +681,9 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
>>> >
>>> >    OVS_GREP_IFELSE([$KSRC/include/net/vxlan.h], [struct vxlan_metadata],
>>> >                    [OVS_DEFINE([HAVE_VXLAN_METADATA])])
>>> > -  OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_flow_src_port],
>>> > -                  [OVS_GREP_IFELSE([$KSRC/include/net/udp.h], 
>>> > [inet_get_local_port_range(net],
>>> > -                                   
>>> > [OVS_DEFINE([HAVE_UDP_FLOW_SRC_PORT])])])
>>> > +  OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_flow_src_port])
>>> > +  OVS_GREP_IFELSE([$KSRC/include/net/udp.h], 
>>> > [inet_get_local_port_range(net)],
>>> > +                                   
>>> > [OVS_DEFINE([HAVE_UDP_FLOW_SRC_PORT])])
>>>
>>> I think this is deliberate.. Only if 'udp_flow_src_port' exists in
>>> net/udp.h, *AND* 'inet_get_local_port_range(net' exists, we define
>>> that HAVE_UDP_FLOW_SRC_PORT exists with the correct implementation.
>>> Otherwise, we'll provide an implementation of udp_flow_src_port. (Note
>>> that if 'udp_flow_src_port' exists but 'inet_get_local_port_range'
>>> taking 'net' does not, then HAVE_INET_GET_LOCAL_PORT_RANGE_USING_NET
>>> won't be defined, so we'll also backport that function for use from
>>> this backported function.
>>
>> Right, and now it works so far as I can tell. Before there was an
>> imbalance in the parenthesis and none of the other OVS_GREP_IFELSE
>> clauses following would execute, leaving my own OVS_GREP_IFELSE clause
>> with the ipv6 frag init check not executing at all.
>>
>> Just add my patch to acinclude.m4 without this patch and the clause I
>> added won't ever execute.  I guess I could move it above if it is truly
>> intentional that no clauses below that one should ever execute.
>
> I wonder if the open bracket in the "inet_get_local_port_range(net" is
> somehow interfering with the bracket balancing in the OVS_GREP_IFELSE?
>
> I know my editor gets a bit confused by this one, but I assumed that
> it's just my editor rather than the actual execution.
>
> When I ran configure without this patch on my trusty (kernel-3.13)
> machine, I saw the following line:
>
> checking whether nf_defrag_ipv6_enable has parameter net in
> /lib/modules/3.13.0-91-generic/build/include/net/netfilter/ipv6/nf_defrag_ipv6.h...
> no

^ I should mean to say, with all of the other patches in this series I see this.
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