Re: [PATCH net-next] tuntap: calculate rps hash only when needed

kbuild test robot
2016-04-26T02:27:54Z

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Hi,

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

url: https://github.com/0day-ci/linux/commits/Jason-Wang/tuntap-calculate-rps-hash-only-when-needed/20160426-095825
config: xtensa-allyesconfig (attached as .config)
compiler:
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=xtensa

All errors (new ones prefixed by >>):

drivers/net/tun.c: In function 'tun_net_xmit':
>> drivers/net/tun.c:836:42: error: 'rps_needed' undeclared (first use in this function)
if (numqueues == 1 && static_key_false(&rps_needed)) {
^
drivers/net/tun.c:836:42: note: each undeclared identifier is reported only once for each function it appears in

vim +/rps_needed +836 drivers/net/tun.c

830 numqueues = ACCESS_ONCE(tun->numqueues);
831
832 /* Drop packet if interface is not attached */
833 if (txq >= numqueues)
834 goto drop;
835
> 836 if (numqueues == 1 && static_key_false(&rps_needed)) {
837 /* Select queue was not called for the skbuff, so we extract the
838 * RPS hash and save it into the flow_table here.
839 */

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation

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