Re: [PATCH V2 2/2] net: fec: add ndo_select_queue to fix TX bandwidth fluctuations

kernel test robot
2021-06-18T15:12:25Z

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Hi Joakim,

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/Joakim-Zhang/net-fec-fix-TX-bandwidth-fluctuations/20210616-221117
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git c7654495916e109f76a67fd3ae68f8fa70ab4faa
config: parisc-randconfig-s031-20210618 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.3-341-g8af24329-dirty
# https://github.com/0day-ci/linux/commit/a0ef15273c2798319e07a8277161e99b4a22b41e
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Joakim-Zhang/net-fec-fix-TX-bandwidth-fluctuations/20210616-221117
git checkout a0ef15273c2798319e07a8277161e99b4a22b41e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=parisc

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 >>)
>> drivers/net/ethernet/freescale/fec_main.c:3250:30: sparse: sparse: cast to restricted __be16
>> drivers/net/ethernet/freescale/fec_main.c:3250:16: sparse: sparse: restricted __be16 degrades to integer

vim +3250 drivers/net/ethernet/freescale/fec_main.c

3244
3245 static u16 fec_enet_get_raw_vlan_tci(struct sk_buff *skb)
3246 {
3247 struct vlan_ethhdr *vhdr;
3248 unsigned short vlan_TCI = 0;
3249
> 3250 if (skb->protocol == ntohs(ETH_P_ALL)) {
3251 vhdr = (struct vlan_ethhdr *)(skb->data);
3252 vlan_TCI = ntohs(vhdr->h_vlan_TCI);
3253 }
3254
3255 return vlan_TCI;
3256 }
3257

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

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