linux-kernel - linux-next: build failure after merge of the uml tree

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Date:   Wed, 22 Dec 2021 10:55:21 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Richard Weinberger <richard@....at>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Christoph Hellwig <hch@....de>,
        Al Viro <viro@...iv.linux.org.uk>
Subject: linux-next: build failure after merge of the uml tree

Hi all,

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

arch/x86/kvm/mmu/spte.c: In function 'kvm_is_mmio_pfn':
arch/x86/kvm/mmu/spte.c:85:6: error: implicit declaration of function 'pat_enabled'; did you mean 'kasan_enabled'? [-Werror=implicit-function-declaration]
   85 |    (!pat_enabled() || pat_pfn_immune_to_uc_mtrr(pfn));
      |      ^~~~~~~~~~~
      |      kasan_enabled
arch/x86/kvm/mmu/spte.c:85:23: error: implicit declaration of function 'pat_pfn_immune_to_uc_mtrr' [-Werror=implicit-function-declaration]
   85 |    (!pat_enabled() || pat_pfn_immune_to_uc_mtrr(pfn));
      |                       ^~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

I am not sure what caused this - presumably some include file tidying up.

I have used the uml tree from next-20211221 for today.

-- 
Cheers,
Stephen Rothwell

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