tree:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 
master
head:   4567d686f5c6d955e57a3afa1741944c1e7f4033
commit: 96fe11f27b70f6b64f62a2d13ed209aa02e02a48 [177/195] cxgb4: Implement 
ndo_get_phys_port_id for mgmt dev
config: x86_64-randconfig-a0-01200234 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        git checkout 96fe11f27b70f6b64f62a2d13ed209aa02e02a48
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c: In function 'init_one':
>> drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c:4646: warning: unused 
>> variable 'port_vec'
>> drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c:4646: warning: unused 
>> variable 'v'
   drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c: In function 
'cxgb_select_queue':
   drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c:923: warning: 'vlan_tci' may 
be used uninitialized in this function
   At top level:
   cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized"
   drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.o: warning: objtool: 
__skb_put()+0x65: function has unreachable instruction

vim +/port_vec +4646 drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c

  4630                  fill_vf_station_mac_addr(adap);
  4631          return num_vfs;
  4632  }
  4633  #endif
  4634  
  4635  static int init_one(struct pci_dev *pdev, const struct pci_device_id 
*ent)
  4636  {
  4637          int func, i, err, s_qpp, qpp, num_seg;
  4638          struct port_info *pi;
  4639          bool highdma = false;
  4640          struct adapter *adapter = NULL;
  4641          struct net_device *netdev;
  4642          void __iomem *regs;
  4643          u32 whoami, pl_rev;
  4644          enum chip_type chip;
  4645          static int adap_idx = 1;
> 4646          u32 v, port_vec;
  4647  
  4648          printk_once(KERN_INFO "%s - version %s\n", DRV_DESC, 
DRV_VERSION);
  4649  
  4650          err = pci_request_regions(pdev, KBUILD_MODNAME);
  4651          if (err) {
  4652                  /* Just info, some other driver may have claimed the 
device. */
  4653                  dev_info(&pdev->dev, "cannot obtain PCI resources\n");
  4654                  return err;

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

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