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Date:   Fri, 3 May 2019 16:26:17 +0200
From:   Heiko Carstens <heiko.carstens@de.ibm.com>
To:     Arnd Bergmann <arnd@arndb.de>
Cc:     Martin Schwidefsky <schwidefsky@de.ibm.com>,
        clang-built-linux@googlegroups.com,
        Nick Desaulniers <ndesaulniers@google.com>,
        Nathan Chancellor <natechancellor@gmail.com>,
        linux-s390@vger.kernel.org,
        Masahiro Yamada <yamada.masahiro@socionext.com>,
        Vasily Gorbik <gor@linux.ibm.com>,
        Philipp Rudo <prudo@linux.vnet.ibm.com>,
        Tony Krowiak <akrowiak@linux.ibm.com>,
        Ursula Braun <ubraun@linux.ibm.com>,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 3/4] s390: drop CONFIG_VIRT_TO_BUS
References: <20190415083605.2560074-1-arnd@arndb.de>
 <20190415083605.2560074-3-arnd@arndb.de>
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On Mon, Apr 15, 2019 at 10:35:53AM +0200, Arnd Bergmann wrote:
> VIRT_TO_BUS is only used for legacy device PCI and ISA drivers using
> virt_to_bus() instead of the streaming DMA mapping API, and the
> remaining drivers generally don't work on 64-bit architectures.
> 
> Two of these drivers also cause a build warning on s390, so instead
> of trying to fix that, let's just disable the option as we do on
> most architectures now.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  arch/s390/Kconfig | 1 -
>  1 file changed, 1 deletion(-)

Applied, thanks.