Hi Toms,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Toms-Atteka/net-openvswitch-IPv6-Add-IPv6-extension-header-support/20210904-045602
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 29ce8f9701072fc221d9c38ad952de1a9578f95c
config: x86_64-rhel-8.3-kselftests (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-rc1-dirty
        # https://github.com/0day-ci/linux/commit/dbd8852a931c7418829a31dcd51d8b2245f27f79
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Toms-Atteka/net-openvswitch-IPv6-Add-IPv6-extension-header-support/20210904-045602
        git checkout dbd8852a931c7418829a31dcd51d8b2245f27f79
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash

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


sparse warnings: (new ones prefixed by >>)
>> net/openvswitch/flow.c:268:6: sparse: sparse: symbol 'get_ipv6_ext_hdrs' was not declared. Should it be static?

Please review and possibly fold the followup patch.

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