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Date:   Thu, 12 Nov 2020 11:54:34 +0000
From:   Wei Liu <wei.liu@...nel.org>
To:     kernel test robot <lkp@...el.com>
Cc:     Wei Liu <wei.liu@...nel.org>,
        Linux on Hyper-V List <linux-hyperv@...r.kernel.org>,
        kbuild-all@...ts.01.org, virtualization@...ts.linux-foundation.org,
        Linux Kernel List <linux-kernel@...r.kernel.org>,
        Michael Kelley <mikelley@...rosoft.com>,
        Vineeth Pillai <viremana@...ux.microsoft.com>,
        Sunil Muthuswamy <sunilmut@...rosoft.com>,
        Nuno Das Neves <nunodasneves@...ux.microsoft.com>,
        Lillian Grassin-Drake <ligrassi@...rosoft.com>,
        "K. Y. Srinivasan" <kys@...rosoft.com>
Subject: Re: [PATCH v2 07/17] x86/hyperv: extract partition ID from Microsoft
 Hypervisor if necessary

On Fri, Nov 06, 2020 at 04:07:33AM +0800, kernel test robot wrote:
> Hi Wei,
> 
> I love your patch! Perhaps something to improve:
> 
> [auto build test WARNING on tip/x86/core]
> [also build test WARNING on asm-generic/master iommu/next tip/timers/core pci/next linus/master v5.10-rc2 next-20201105]
> [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]
> 
> url:    https://github.com/0day-ci/linux/commits/Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201106-010058
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 238c91115cd05c71447ea071624a4c9fe661f970
> config: i386-randconfig-r002-20201104 (attached as .config)
> compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
> reproduce (this is a W=1 build):
>         # https://github.com/0day-ci/linux/commit/83c03b4e30e729a77688b8c0ffeffa2a555dcce7
>         git remote add linux-review https://github.com/0day-ci/linux
>         git fetch --no-tags linux-review Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201106-010058
>         git checkout 83c03b4e30e729a77688b8c0ffeffa2a555dcce7
>         # save the attached .config to linux build tree
>         make W=1 ARCH=i386 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
> 
> All warnings (new ones prefixed by >>):
> 
> >> arch/x86/hyperv/hv_init.c:341:13: warning: no previous prototype for 'hv_get_partition_id' [-Wmissing-prototypes]
>      341 | void __init hv_get_partition_id(void)
>          |             ^~~~~~~~~~~~~~~~~~~

This function can be made static since the only user is in the same
file.

Wei.

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