Re: [Xen-devel] [PATCH 2/2] hvc_xen: fix xenboot for DomUs

[kbuild test robot <lkp@xxxxxxxxx>]

Hi Stefano,

[auto build test WARNING on tty/tty-testing]
[also build test WARNING on v4.5-rc5 next-20160223]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improving the system]

url:    
https://github.com/0day-ci/linux/commits/Stefano-Stabellini/hvc_xen-add-earlycon-support/20160224-203006
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git 
tty-testing
config: x86_64-randconfig-x009-201608 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   drivers/tty/hvc/hvc_xen.c: In function 'xenboot_setup_console':
>> drivers/tty/hvc/hvc_xen.c:637:1: warning: control reaches end of non-void 
>> function [-Wreturn-type]
    }
    ^

vim +637 drivers/tty/hvc/hvc_xen.c

   621          }
   622          if (off < len)
   623                  domU_write_console(0, string+off, len-off);
   624  }
   625  
   626  #ifdef CONFIG_EARLY_PRINTK
   627  static int xenboot_setup_console(struct console *console, char *string)
   628  {
   629          static struct xencons_info xenboot;
   630  
   631          if (xen_initial_domain())
   632                  return 0;
   633          if (!xen_pv_domain())
   634                  return -ENODEV;
   635  
   636          xen_early_pv_console_init(&xenboot, 0);
 > 637  }
   638  
   639  static void xenboot_write_console(struct console *console, const char 
*string,
   640                                    unsigned len)
   641  {
   642          if (!xen_pv_domain())
   643                  return;
   644  
   645          dom0_write_console(0, string, len);

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

Attachment: .config.gz
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