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authorChristoph Hellwig <hch@lst.de>2020-07-14 14:18:54 +0200
committerRich Felker <dalias@libc.org>2020-08-15 04:05:17 +0200
commit846f9e1fb9b9a2c4eecefa2fdbfb51e975a7d532 (patch)
tree13a44920847bb05fcf29e12f60d79b2b45dd9583
parentsh: unexport register_trapped_io and match_trapped_io_handler (diff)
downloadlinux-846f9e1fb9b9a2c4eecefa2fdbfb51e975a7d532.tar.xz
linux-846f9e1fb9b9a2c4eecefa2fdbfb51e975a7d532.zip
dma-mapping: consolidate the NO_DMA definition in kernel/dma/Kconfig
Have a single definition that architetures can select. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Rich Felker <dalias@libc.org>
Diffstat (limited to '')
-rw-r--r--arch/m68k/Kconfig4
-rw-r--r--arch/m68k/Kconfig.machine1
-rw-r--r--arch/um/Kconfig4
-rw-r--r--kernel/dma/Kconfig3
4 files changed, 6 insertions, 6 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 6ad6cdac74b3..8e488369a7e5 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -17,6 +17,7 @@ config M68K
select HAVE_COPY_THREAD_TLS
select GENERIC_IRQ_SHOW
select GENERIC_ATOMIC64
+ select NO_DMA if !MMU && !COLDFIRE
select HAVE_UID16
select VIRT_TO_BUS
select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
@@ -60,9 +61,6 @@ config TIME_LOW_RES
config NO_IOPORT_MAP
def_bool y
-config NO_DMA
- def_bool (MMU && SUN3) || (!MMU && !COLDFIRE)
-
config ZONE_DMA
bool
default y
diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine
index a82651d58af4..17e8c3a292d7 100644
--- a/arch/m68k/Kconfig.machine
+++ b/arch/m68k/Kconfig.machine
@@ -126,6 +126,7 @@ config SUN3
depends on MMU
depends on !MMU_MOTOROLA
select MMU_SUN3 if MMU
+ select NO_DMA
select M68020
help
This option enables support for the Sun 3 series of workstations
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 9318dc6d1a0c..32c1d1945033 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -15,6 +15,7 @@ config UML
select HAVE_DEBUG_KMEMLEAK
select HAVE_DEBUG_BUGVERBOSE
select HAVE_COPY_THREAD_TLS
+ select NO_DMA
select GENERIC_IRQ_SHOW
select GENERIC_CPU_DEVICES
select GENERIC_CLOCKEVENTS
@@ -168,9 +169,6 @@ config MMAPPER
This driver allows a host file to be used as emulated IO memory inside
UML.
-config NO_DMA
- def_bool y
-
config PGTABLE_LEVELS
int
default 3 if 3_LEVEL_PGTABLES
diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig
index 1da3f44f2565..57533d07676f 100644
--- a/kernel/dma/Kconfig
+++ b/kernel/dma/Kconfig
@@ -1,5 +1,8 @@
# SPDX-License-Identifier: GPL-2.0-only
+config NO_DMA
+ bool
+
config HAS_DMA
bool
depends on !NO_DMA