linux-next: build failure after merge of the hyperv-fixes tree

linux-next: build failure after merge of the hyperv-fixes tree

[Stephen Rothwell]

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Hi all,

After merging the hyperv-fixes tree, today's linux-next build (x86_64
allmodconfig) failed like this:

arch/x86/hyperv/hv_init.c: In function 'hyperv_init':
arch/x86/hyperv/hv_init.c:447:29: error: unused variable 'dst' [-Werror=unused-variable]
  447 |                 void *src, *dst;
      |                             ^~~
cc1: all warnings being treated as errors

Caused by commit

  f8162cff19f1 ("x86/hyperv: Remove BUG_ON() for kmap_local_page()")

I have used the hyperv-fixes tree from next-20221026 for today.

-- 
Cheers,
Stephen Rothwell

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Re: linux-next: build failure after merge of the hyperv-fixes tree

[Wei Liu]

On Thu, Oct 27, 2022 at 08:53:32AM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the hyperv-fixes tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
> 
> arch/x86/hyperv/hv_init.c: In function 'hyperv_init':
> arch/x86/hyperv/hv_init.c:447:29: error: unused variable 'dst' [-Werror=unused-variable]
>   447 |                 void *src, *dst;
>       |                             ^~~
> cc1: all warnings being treated as errors
> 
> Caused by commit
> 
>   f8162cff19f1 ("x86/hyperv: Remove BUG_ON() for kmap_local_page()")
> 
> I have used the hyperv-fixes tree from next-20221026 for today.

Thanks. I've fixed that.

I will also turn on CONFIG_WERROR in my build test.

> 
> -- 
> Cheers,
> Stephen Rothwell