From: Christoph Paasch <christoph.paasch@uclouvain.be>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH net-next] net: ipv6: inet6_connection_sock.h needs flowi
Date: Sun, 16 Oct 2011 12:13:39 +0300 [thread overview]
Message-ID: <4E9AA043.1090008@uclouvain.be> (raw)
In-Reply-To: <20111015.184126.53610934026688054.davem@davemloft.net>
On 10/16/2011 01:41 AM, David Miller wrote:
> From: Christoph Paasch<christoph.paasch@uclouvain.be>
> Date: Sat, 15 Oct 2011 12:34:24 +0300
>
>> Otherwise we have a compiler-warning in c-files not including net/flow.h
>> before inet6_connection_sock.h .
>>
>> Signed-off-by: Christoph Paasch<christoph.paasch@uclouvain.be>
>
> Example? I've never seen this warning.
Currently, all the c-files that include inet6_connection_sock.h
indirectly include flow.h before inet6_connection_sock.h. Thus currently
there is no compiler-warning.
However, if a c-file would include inet6_connection_sock.h without
preceding an inclusion of flow.h, a compiler-warning will trigger (at
least with gcc 4.6.1 from the latest ubuntu). Thus, the c-file has to
include flow.h even if it doesn't need any struct/function from flow.h.
Actually I had this case in our mptcp-code. Thus I had two choices,
either include flow.h in the c-file (even if it's not needed there), or
change inet6_connection_sock.h
I would say, that inet6_connection_sock.h should not rely on the c-files
to include flow.h, and rather declare struct flowi (as it is done for
the other structs used in inet6_connection_sock.h like in6_addr,
sk_buff,...).
Or am I missing something?
Cheers,
Christoph
--
Christoph Paasch
PhD Student
IP Networking Lab --- http://inl.info.ucl.ac.be
MultiPath TCP in the Linux Kernel --- http://inl.info.ucl.ac.be/mptcp
Université Catholique de Louvain
--
next prev parent reply other threads:[~2011-10-16 9:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-15 9:34 [PATCH net-next] net: ipv6: inet6_connection_sock.h needs flowi Christoph Paasch
2011-10-15 22:41 ` David Miller
2011-10-16 9:13 ` Christoph Paasch [this message]
2011-10-17 0:13 ` David Miller
2011-10-17 16:59 ` Christoph Paasch
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