linux-kernel - Re: [PATCH] kasan, mm: fix build issue with asmlinkage

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Date:   Mon, 30 Nov 2020 10:46:01 +0100
From:   Marco Elver <elver@...gle.com>
To:     Valdis Klētnieks <valdis.kletnieks@...edu>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Andrey Konovalov <andreyknvl@...gle.com>
Cc:     Russell King - ARM Linux admin <linux@...linux.org.uk>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        kasan-dev <kasan-dev@...glegroups.com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kasan, mm: fix build issue with asmlinkage

On Thu, 26 Nov 2020 at 16:00, Valdis Klētnieks <valdis.kletnieks@...edu> wrote:
> commit 2df573d2ca4c1ce6ea33cb7849222f771e759211
> Author: Andrey Konovalov <andreyknvl@...gle.com>
> Date:   Tue Nov 24 16:45:08 2020 +1100
>
>     kasan: shadow declarations only for software modes
>
> introduces a build failure when it removed an include for linux/pgtable.h
> It actually only needs linux/linkage.h
>
> Test builds on both x86_64 and arm build cleanly
>
> Fixes:   2df573d2ca4c ("kasan: shadow declarations only for software modes")
> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@...edu>

Reviewed-by: Marco Elver <elver@...gle.com>

Probably want to add

  Link: https://lore.kernel.org/linux-arm-kernel/24105.1606397102@turing-police/

for more context, too.

Thanks,
-- Marco



> ---
> diff --git a/include/linux/kasan.h b/include/linux/kasan.h
> index 83860aa4e89c..5e0655fb2a6f 100644
> --- a/include/linux/kasan.h
> +++ b/include/linux/kasan.h
> @@ -12,6 +12,7 @@ struct task_struct;
>
>  #ifdef CONFIG_KASAN
>
> +#include <linux/linkage.h>
>  #include <asm/kasan.h>
>
>  /* kasan_data struct is used in KUnit tests for KASAN expected failures */
>
>
> --
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