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Date: Mon, 14 Aug 2017 10:21:50 -0600
From: Tycho Andersen <>
To: kbuild test robot <>
	Marco Benatto <>,
	Juerg Haefliger <>
Subject: Re: [PATCH v5 10/10] lkdtm: Add test for XPFO

On Sun, Aug 13, 2017 at 04:24:23AM +0800, kbuild test robot wrote:
> Hi Juerg,
> [auto build test ERROR on arm64/for-next/core]
> [also build test ERROR on v4.13-rc4]
> [cannot apply to next-20170811]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> url:
> base: for-next/core
> config: x86_64-randconfig-x016-201733 (attached as .config)
> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=x86_64 
> All errors (new ones prefixed by >>):
>    drivers/misc/lkdtm_xpfo.c: In function 'read_user_with_flags':
> >> drivers/misc/lkdtm_xpfo.c:31:14: error: implicit declaration of function 'user_virt_to_phys' [-Werror=implicit-function-declaration]
>      phys_addr = user_virt_to_phys(user_addr);
>                  ^~~~~~~~~~~~~~~~~
>    cc1: some warnings being treated as errors

These are both the same error, looks like I forgot a dummy prototype
in the non CONFIG_XPFO case, I'll fix it in the next version.


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