Re: [PATCH] [net/ipv6] ip6_output: Add ipv6_pinfo null check

From: kernel test robot
Date: Mon Jul 27 2020 - 06:42:15 EST

Hi Gaurav,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on sparc-next/master]
[also build test WARNING on ipvs/master linus/master v5.8-rc7 next-20200724]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in]

base: master
config: x86_64-randconfig-r011-20200727 (attached as .config)
compiler: clang version 12.0.0 ( 8dc820393219c7ee440b4ec86c9a201301943276)
reproduce (this is a W=1 build):
wget -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@xxxxxxxxx>

All warnings (new ones prefixed by >>):

>> net/ipv6/ip6_output.c:188:1: warning: non-void function does not return a value in all control paths [-Wreturn-type]
1 warning generated.

vim +188 net/ipv6/ip6_output.c

^1da177e4c3f41 Linus Torvalds 2005-04-16 181
e9191ffb65d8e1 Ben Hutchings 2018-01-22 182 bool ip6_autoflowlabel(struct net *net, const struct ipv6_pinfo *np)
513674b5a2c9c7 Shaohua Li 2017-12-20 183 {
5bdc1ea8a7d229 Gaurav Singh 2020-07-26 184 if (np && np->autoflowlabel_set)
513674b5a2c9c7 Shaohua Li 2017-12-20 185 return np->autoflowlabel;
5bdc1ea8a7d229 Gaurav Singh 2020-07-26 186 else
5bdc1ea8a7d229 Gaurav Singh 2020-07-26 187 ip6_default_np_autolabel(net);
513674b5a2c9c7 Shaohua Li 2017-12-20 @188 }
513674b5a2c9c7 Shaohua Li 2017-12-20 189

0-DAY CI Kernel Test Service, Intel Corporation

Attachment: .config.gz
Description: application/gzip