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Date:   Wed, 6 Dec 2017 16:03:35 +0100
From:   Arnd Bergmann <>
To:     "the arch/x86 maintainers" <>
Cc:     Arnd Bergmann <>,
        Thomas Gleixner <>,
        Ingo Molnar <>,
        "H. Peter Anvin" <>,
        Dave Hansen <>,
        Peter Zijlstra <>,
        Linux Kernel Mailing List <>
Subject: Re: [PATCH] x86/mm/kaiser: avoid 32-bit/PAE build warning

On Wed, Dec 6, 2017 at 3:15 PM, Arnd Bergmann <> wrote:

> This changes the type to u64 in the architecture-independent dummy,
> and to pteval_t in the x86 specific portion that is used when KAISER
> is enabled, ensuring that the flags can always fit. Unfortunately,
> pteval_t is not provided by most other architectures, so we are
> a little bit inconsistent here.

I ran into a new regression with my patch applied, after doing more randconfig

In file included from /git/arm-soc/include/linux/kaiser.h:5,
                 from /git/arm-soc/arch/x86/events/intel/ds.c:4:
arch/x86/include/asm/kaiser.h:34:10: error: unknown type name
'pteval_t'; did you mean 'dev_t'?

Maybe it's better to just to the last one-line change in include/linux/kaiser.h.


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