Re: [crypto 4/4] IPv6 changes for Inline TLS

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On Thu, Apr 11, 2019 at 6:06 PM kbuild test robot <lkp@xxxxxxxxx> wrote:
>
> Hi Atul,
>
> Thank you for the patch! Perhaps something to improve:
>
> [auto build test WARNING on crypto/master]
>
> url:    https://github.com/0day-ci/linux/commits/Atul-Gupta/Inline-TLS-client-and-v6-support/20190412-034407
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git master
> config: mips-allmodconfig (attached as .config)
> compiler: mips-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         GCC_VERSION=7.2.0 make.cross ARCH=mips
>
> All warnings (new ones prefixed by >>):
>
>    In file included from drivers/crypto/chelsio/chtls/chtls_main.c:19:0:
> >> include/net/transp_v6.h:52:33: warning: 'struct ipcm6_cookie' declared inside parameter list will not be visible outside of this definition or declaration
>          struct flowi6 *fl6, struct ipcm6_cookie *ipc6);
>                                     ^~~~~~~~~~~~

The header file does not include every header it depends on. This is
not the only instance, but if the only one that triggers, perhaps
easiest is to add a forward declaration.

diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index a8f6020f1196e..fef338b08e0fa 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -12,6 +12,7 @@ extern struct proto tcpv6_prot;
 extern struct proto pingv6_prot;

 struct flowi6;
+struct ipcm6_cookie *ipc6;

I can send a separate patch to net-next. But since this patch already
changes that file, I would suggest including the one line change in a
v2 here.


> --
>    drivers/crypto/chelsio/chtls/chtls_cm.c: In function 'chtls_pass_accept_request':
> >> drivers/crypto/chelsio/chtls/chtls_cm.c:2272:8: warning: 'eh' may be used uninitialized in this function [-Wmaybe-uninitialized]
>       ip6h = (struct ipv6hdr *)(eh + 1);
>       ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>    drivers/crypto/chelsio/chtls/chtls_cm.c: In function 'chtls_v6_connect':
> >> drivers/crypto/chelsio/chtls/chtls_cm.c:1552:12: warning: 'saddr' may be used uninitialized in this function [-Wmaybe-uninitialized]
>      fl6.saddr = saddr ? *saddr : np->saddr;
>      ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> vim +52 include/net/transp_v6.h
>
> f145b67f2 Joe Perches          2013-06-02  42
> 4b261c75a Hannes Frederic Sowa 2014-01-20  43  /* this does all the common and the specific ctl work */
> 4b261c75a Hannes Frederic Sowa 2014-01-20  44  void ip6_datagram_recv_ctl(struct sock *sk, struct msghdr *msg,
> 4b261c75a Hannes Frederic Sowa 2014-01-20  45                      struct sk_buff *skb);
> 4b261c75a Hannes Frederic Sowa 2014-01-20  46  void ip6_datagram_recv_common_ctl(struct sock *sk, struct msghdr *msg,
> 4b261c75a Hannes Frederic Sowa 2014-01-20  47                             struct sk_buff *skb);
> 4b261c75a Hannes Frederic Sowa 2014-01-20  48  void ip6_datagram_recv_specific_ctl(struct sock *sk, struct msghdr *msg,
> ^1da177e4 Linus Torvalds       2005-04-16  49                               struct sk_buff *skb);
> ^1da177e4 Linus Torvalds       2005-04-16  50
> f145b67f2 Joe Perches          2013-06-02  51  int ip6_datagram_send_ctl(struct net *net, struct sock *sk, struct msghdr *msg,
> 5fdaa88df Willem de Bruijn     2018-07-06 @52                     struct flowi6 *fl6, struct ipcm6_cookie *ipc6);
> ^1da177e4 Linus Torvalds       2005-04-16  53
>
> :::::: The code at line 52 was first introduced by commit
> :::::: 5fdaa88dfefa87ee1ea92750e99950dca182ea41 ipv6: fold sockcm_cookie into ipcm6_cookie
>
> :::::: TO: Willem de Bruijn <willemb@xxxxxxxxxx>
> :::::: CC: David S. Miller <davem@xxxxxxxxxxxxx>
>
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation



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