From: Arnd Bergmann <arnd@arndb.de>
To: Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: clang-built-linux@googlegroups.com,
Nick Desaulniers <ndesaulniers@google.com>,
Nathan Chancellor <natechancellor@gmail.com>,
linux-s390@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
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: [PATCH v2 3/4] s390: drop CONFIG_VIRT_TO_BUS
Date: Mon, 15 Apr 2019 10:35:53 +0200 [thread overview]
Message-ID: <20190415083605.2560074-3-arnd@arndb.de> (raw)
In-Reply-To: <20190415083605.2560074-1-arnd@arndb.de>
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(-)
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 1a2eec61196d..25e0e7375166 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -188,7 +188,6 @@ config S390
select TTY
select VIRT_CPU_ACCOUNTING
select ARCH_HAS_SCALED_CPUTIME
- select VIRT_TO_BUS
select HAVE_NMI
--
2.20.0
next prev parent reply other threads:[~2019-04-15 8:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-15 8:35 [PATCH v2 1/4] s390: only build for new CPUs with clang Arnd Bergmann
2019-04-15 8:35 ` [PATCH v2 2/4] s390: boot, purgatory: pass $(CLANG_FLAGS) where needed Arnd Bergmann
2019-04-15 16:12 ` Nathan Chancellor
2019-05-03 14:26 ` Heiko Carstens
2019-04-15 8:35 ` Arnd Bergmann [this message]
2019-05-03 14:26 ` [PATCH v2 3/4] s390: drop CONFIG_VIRT_TO_BUS Heiko Carstens
2019-04-15 8:35 ` [PATCH v2 4/4] s390: fix clang -Wpointer-sign warnigns in boot code Arnd Bergmann
2019-04-22 17:51 ` Nick Desaulniers
2019-04-23 8:05 ` Arnd Bergmann
2019-04-23 18:21 ` Nick Desaulniers
2019-05-03 14:27 ` Heiko Carstens
2019-05-03 14:25 ` [PATCH v2 1/4] s390: only build for new CPUs with clang Heiko Carstens
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