linux-kernel - Re: [PATCH] x86/hyperv: Remove hv_vtl_early

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <202309201327.J4pfXnUv-lkp@intel.com>
Date:   Thu, 28 Sep 2023 09:36:34 +0800
From:   kernel test robot <yujie.liu@...el.com>
To:     Saurabh Sengar <ssengar@...ux.microsoft.com>, <kys@...rosoft.com>,
        <haiyangz@...rosoft.com>, <wei.liu@...nel.org>,
        <decui@...rosoft.com>, <tglx@...utronix.de>, <mingo@...hat.com>,
        <bp@...en8.de>, <dave.hansen@...ux.intel.com>, <x86@...nel.org>,
        <hpa@...or.com>, <linux-hyperv@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <mikelley@...rosoft.com>
CC:     <oe-kbuild-all@...ts.linux.dev>, <minipli@...ecurity.net>,
        <ssengar@...rosoft.com>
Subject: Re: [PATCH] x86/hyperv: Remove hv_vtl_early_init initcall

Hi Saurabh,

kernel test robot noticed the following build warnings:

[auto build test WARNING on v6.6-rc2]
[also build test WARNING on linus/master next-20230920]
[cannot apply to tip/x86/core]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Saurabh-Sengar/x86-hyperv-Remove-hv_vtl_early_init-initcall/20230920-125357
base:   v6.6-rc2
patch link:    https://lore.kernel.org/r/1695185552-19910-1-git-send-email-ssengar%40linux.microsoft.com
patch subject: [PATCH] x86/hyperv: Remove hv_vtl_early_init initcall
config: i386-tinyconfig (https://download.01.org/0day-ci/archive/20230920/202309201327.J4pfXnUv-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230920/202309201327.J4pfXnUv-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <yujie.liu@...el.com>
| Closes: https://lore.kernel.org/r/202309201327.J4pfXnUv-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from arch/x86/mm/pat/set_memory.c:36:
   arch/x86/include/asm/mshyperv.h: In function 'hv_vtl_early_init':
   arch/x86/include/asm/mshyperv.h:346:1: error: no return statement in function returning non-void [-Werror=return-type]
     346 | static int __init hv_vtl_early_init(void) {}
         | ^~~~~~
   arch/x86/include/asm/mshyperv.h: At top level:
>> arch/x86/include/asm/mshyperv.h:346:19: warning: 'hv_vtl_early_init' defined but not used [-Wunused-function]
     346 | static int __init hv_vtl_early_init(void) {}
         |                   ^~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/hv_vtl_early_init +346 arch/x86/include/asm/mshyperv.h

79cadff2d92bb8 Vitaly Kuznetsov 2017-08-02  339  
765e33f5211ab6 Michael Kelley   2019-05-30  340  
3be1bc2fe9d2e4 Saurabh Sengar   2023-04-10  341  #ifdef CONFIG_HYPERV_VTL_MODE
3be1bc2fe9d2e4 Saurabh Sengar   2023-04-10  342  void __init hv_vtl_init_platform(void);
9081cfc5d0e7fa Saurabh Sengar   2023-09-19  343  int __init hv_vtl_early_init(void);
3be1bc2fe9d2e4 Saurabh Sengar   2023-04-10  344  #else
3be1bc2fe9d2e4 Saurabh Sengar   2023-04-10  345  static inline void __init hv_vtl_init_platform(void) {}
9081cfc5d0e7fa Saurabh Sengar   2023-09-19 @346  static int __init hv_vtl_early_init(void) {}
3be1bc2fe9d2e4 Saurabh Sengar   2023-04-10  347  #endif
3be1bc2fe9d2e4 Saurabh Sengar   2023-04-10  348  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki