Re: [PATCH v4 15/17] x86/hyperv: implement an MSI domain for root partition

[Wei Liu]

On Thu, Jan 07, 2021 at 06:21:24AM +0800, kernel test robot wrote:
> Hi Wei,
> 
> I love your patch! Perhaps something to improve:
> 
> [auto build test WARNING on e71ba9452f0b5b2e8dc8aa5445198cd9214a6a62]
> 
> url:    https://github.com/0day-ci/linux/commits/Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20210107-044149
> base:    e71ba9452f0b5b2e8dc8aa5445198cd9214a6a62
> config: i386-randconfig-m021-20210106 (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/376aee69c6ab18dc23b0386590bee82d59555be8
>         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/20210107-044149
>         git checkout 376aee69c6ab18dc23b0386590bee82d59555be8
>         # 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@xxxxxxxxx>
> 
> All warnings (new ones prefixed by >>):
> 
> >> arch/x86/hyperv/irqdomain.c:317:28: warning: no previous prototype for 'hv_create_pci_msi_domain' [-Wmissing-prototypes]
>      317 | struct irq_domain * __init hv_create_pci_msi_domain(void)
>          |                            ^~~~~~~~~~~~~~~~~~~~~~~~
> 
> 
> vim +/hv_create_pci_msi_domain +317 arch/x86/hyperv/irqdomain.c

I've fixed this locally by moving the prototype to a header file --
previously it was left in a C file.

Wei.