netdev - Re: [net-next] tipc: update a binding service via broadcast

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Date:   Sun, 7 Jun 2020 14:22:56 +0800
From:   kernel test robot <lkp@...el.com>
To:     Hoang Huu Le <hoang.h.le@...tech.com.au>, jmaloy@...hat.com,
        maloy@...jonn.com, ying.xue@...driver.com,
        tipc-discussion@...ts.sourceforge.net, netdev@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com
Subject: Re: [net-next] tipc: update a binding service via broadcast

Hi Hoang,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on net-next/master]
[also build test WARNING on linus/master next-20200605]
[cannot apply to v5.7]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Hoang-Huu-Le/tipc-update-a-binding-service-via-broadcast/20200607-122712
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git cb8e59cc87201af93dfbb6c3dccc8fcad72a09c2
config: x86_64-randconfig-r022-20200607 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project e429cffd4f228f70c1d9df0e5d77c08590dd9766)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> net/tipc/name_distr.c:323:17: warning: no previous prototype for function 'tipc_named_dequeue' [-Wmissing-prototypes]
struct sk_buff *tipc_named_dequeue(struct sk_buff_head *namedq,
^
net/tipc/name_distr.c:323:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
struct sk_buff *tipc_named_dequeue(struct sk_buff_head *namedq,
^
static
1 warning generated.

vim +/tipc_named_dequeue +323 net/tipc/name_distr.c

   322	
 > 323	struct sk_buff *tipc_named_dequeue(struct sk_buff_head *namedq,
   324					   u16 *rcv_nxt, bool *open)
   325	{
   326		struct sk_buff *skb, *tmp;
   327		struct tipc_msg *hdr;
   328		u16 seqno;
   329	
   330		skb_queue_walk_safe(namedq, skb, tmp) {
   331			skb_linearize(skb);
   332			hdr = buf_msg(skb);
   333			seqno = msg_named_seqno(hdr);
   334			if (msg_is_last_bulk(hdr)) {
   335				*rcv_nxt = seqno;
   336				*open = true;
   337			}
   338			if (msg_is_bulk(hdr) || msg_is_legacy(hdr)) {
   339				__skb_unlink(skb, namedq);
   340				return skb;
   341			}
   342	
   343			if (*open && (*rcv_nxt == seqno)) {
   344				(*rcv_nxt)++;
   345				__skb_unlink(skb, namedq);
   346				return skb;
   347			}
   348		}
   349		return NULL;
   350	}
   351	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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