linux-kernel - Re: [PATCH 1/2] asm-generic: export: Stub EXPORT_SYMBOL with __DISABLE

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Message-ID: <20210203152452.GA18974@willie-the-truck>
Date:   Wed, 3 Feb 2021 15:24:52 +0000
From:   Will Deacon <will@...nel.org>
To:     Quentin Perret <qperret@...gle.com>
Cc:     arnd@...db.de, maz@...nel.org, catalin.marinas@....com,
        james.morse@....com, julien.thierry.kdev@...il.com,
        suzuki.poulose@....com, ardb@...nel.org,
        linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        kernel-team@...roid.com
Subject: Re: [PATCH 1/2] asm-generic: export: Stub EXPORT_SYMBOL with
 __DISABLE_EXPORTS

On Wed, Feb 03, 2021 at 02:19:30PM +0000, Quentin Perret wrote:
> It is currently possible to stub EXPORT_SYMBOL() macros in C code using
> __DISABLE_EXPORTS, which is necessary to run in constrained environments
> such as the EFI stub or the decompressor. But this currently doesn't
> apply to exports from assembly, which can lead to somewhat confusing
> situations.
> 
> Consolidate the __DISABLE_EXPORTS infrastructure by checking it from
> asm-generic/export.h as well.
> 
> Signed-off-by: Quentin Perret <qperret@...gle.com>
> ---
>  include/asm-generic/export.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Acked-by: Will Deacon <will@...nel.org>

Will