scatterlist: move the NEED_SG_DMA_LENGTH config symbol to lib/Kconfig
This way we have one central definition of it, and user can select it as
needed.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 3ff735a..8e6a67e 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -10,6 +10,7 @@
select HAVE_OPROFILE
select HAVE_PCSPKR_PLATFORM
select HAVE_PERF_EVENTS
+ select NEED_SG_DMA_LENGTH
select VIRT_TO_BUS
select GENERIC_IRQ_PROBE
select AUTO_IRQ_AFFINITY if SMP
@@ -70,9 +71,6 @@
config NEED_DMA_MAP_STATE
def_bool y
-config NEED_SG_DMA_LENGTH
- def_bool y
-
config GENERIC_ISA_DMA
bool
default y
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 6bbf7b92..0d2930d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -118,9 +118,6 @@
select ARCH_HAS_SG_CHAIN
bool
-config NEED_SG_DMA_LENGTH
- bool
-
config ARM_DMA_USE_IOMMU
bool
select ARM_HAS_SG_CHAIN
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index a553deb..eab772a 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -132,6 +132,7 @@
select IRQ_FORCED_THREADING
select MODULES_USE_ELF_RELA
select MULTI_IRQ_HANDLER
+ select NEED_SG_DMA_LENGTH
select NO_BOOTMEM
select OF
select OF_EARLY_FLATTREE
@@ -242,9 +243,6 @@
config NEED_DMA_MAP_STATE
def_bool y
-config NEED_SG_DMA_LENGTH
- def_bool y
-
config SMP
def_bool y
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 76d2f20..37adb20 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -19,6 +19,7 @@
select GENERIC_IRQ_SHOW
select HAVE_ARCH_KGDB
select HAVE_ARCH_TRACEHOOK
+ select NEED_SG_DMA_LENGTH
select NO_IOPORT_MAP
select GENERIC_IOMAP
select GENERIC_SMP_IDLE_THREAD
@@ -63,9 +64,6 @@
config GENERIC_IRQ_PROBE
def_bool y
-config NEED_SG_DMA_LENGTH
- def_bool y
-
config RWSEM_GENERIC_SPINLOCK
def_bool n
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index ec2a397..5381e46 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -53,6 +53,7 @@
select MODULES_USE_ELF_RELA
select ARCH_USE_CMPXCHG_LOCKREF
select HAVE_ARCH_AUDITSYSCALL
+ select NEED_SG_DMA_LENGTH
default y
help
The Itanium Processor Family is Intel's 64-bit successor to
@@ -83,9 +84,6 @@
config NEED_DMA_MAP_STATE
def_bool y
-config NEED_SG_DMA_LENGTH
- def_bool y
-
config SWIOTLB
bool
diff --git a/arch/mips/cavium-octeon/Kconfig b/arch/mips/cavium-octeon/Kconfig
index 647ed15..5d73041 100644
--- a/arch/mips/cavium-octeon/Kconfig
+++ b/arch/mips/cavium-octeon/Kconfig
@@ -67,9 +67,6 @@
help
Lock the kernel's implementation of memcpy() into L2.
-config NEED_SG_DMA_LENGTH
- bool
-
config SWIOTLB
def_bool y
select DMA_DIRECT_OPS
diff --git a/arch/mips/loongson64/Kconfig b/arch/mips/loongson64/Kconfig
index 5efb2e6..641a147 100644
--- a/arch/mips/loongson64/Kconfig
+++ b/arch/mips/loongson64/Kconfig
@@ -130,9 +130,6 @@
default y
depends on EARLY_PRINTK || SERIAL_8250
-config NEED_SG_DMA_LENGTH
- bool
-
config SWIOTLB
bool "Soft IOMMU Support for All-Memory DMA"
default y
diff --git a/arch/mips/netlogic/Kconfig b/arch/mips/netlogic/Kconfig
index 5c5ee0e..412351c 100644
--- a/arch/mips/netlogic/Kconfig
+++ b/arch/mips/netlogic/Kconfig
@@ -83,7 +83,4 @@
config NLM_COMMON
bool
-config NEED_SG_DMA_LENGTH
- bool
-
endif
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index fc5a574..89caea8 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -51,6 +51,7 @@
select GENERIC_CLOCKEVENTS
select ARCH_NO_COHERENT_DMA_MMAP
select CPU_NO_EFFICIENT_FFS
+ select NEED_SG_DMA_LENGTH
help
The PA-RISC microprocessor is designed by Hewlett-Packard and used
@@ -114,9 +115,6 @@
config NEED_DMA_MAP_STATE
def_bool y
-config NEED_SG_DMA_LENGTH
- def_bool y
-
config ISA_DMA_API
bool
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index bd1cd84..fbb4d5d 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -226,6 +226,7 @@
select IRQ_DOMAIN
select IRQ_FORCED_THREADING
select MODULES_USE_ELF_RELA
+ select NEED_SG_DMA_LENGTH
select NO_BOOTMEM
select OF
select OF_EARLY_FLATTREE
@@ -909,9 +910,6 @@
config NEED_DMA_MAP_STATE
def_bool (PPC64 || NOT_COHERENT_CACHE)
-config NEED_SG_DMA_LENGTH
- def_bool y
-
config GENERIC_ISA_DMA
bool
depends on ISA_DMA_API
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 89c0c72..a36b4e4 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -710,6 +710,7 @@
select PCI_MSI
select IOMMU_HELPER
select IOMMU_SUPPORT
+ select NEED_SG_DMA_LENGTH
help
Enable PCI support.
@@ -734,9 +735,6 @@
config HAS_IOMEM
def_bool PCI
-config NEED_SG_DMA_LENGTH
- def_bool PCI
-
config NEED_DMA_MAP_STATE
def_bool PCI
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 61f4e2e..a0f1c4a 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -49,6 +49,8 @@
select HAVE_ARCH_AUDITSYSCALL
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_NMI
+ select NEED_SG_DMA_LENGTH
+
help
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast
@@ -162,9 +164,6 @@
config NEED_DMA_MAP_STATE
def_bool DMA_NONCOHERENT
-config NEED_SG_DMA_LENGTH
- def_bool y
-
config PGTABLE_LEVELS
default 3 if X2TLB
default 2
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 3c1740a..a2f4483 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -43,6 +43,7 @@
select ARCH_HAS_SG_CHAIN
select CPU_NO_EFFICIENT_FFS
select LOCKDEP_SMALL if LOCKDEP
+ select NEED_SG_DMA_LENGTH
config SPARC32
def_bool !64BIT
@@ -145,9 +146,6 @@
config NEED_DMA_MAP_STATE
def_bool y
-config NEED_SG_DMA_LENGTH
- def_bool y
-
config GENERIC_ISA_DMA
bool
default y if SPARC32
diff --git a/arch/unicore32/mm/Kconfig b/arch/unicore32/mm/Kconfig
index 3f105e0..1d9fed0 100644
--- a/arch/unicore32/mm/Kconfig
+++ b/arch/unicore32/mm/Kconfig
@@ -43,7 +43,4 @@
config SWIOTLB
def_bool y
select DMA_DIRECT_OPS
-
-config NEED_SG_DMA_LENGTH
- def_bool SWIOTLB
-
+ select NEED_SG_DMA_LENGTH
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4faa505..9cbadd6 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -183,6 +183,7 @@
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_USER_RETURN_NOTIFIER
select IRQ_FORCED_THREADING
+ select NEED_SG_DMA_LENGTH
select PCI_LOCKLESS_CONFIG
select PERF_EVENTS
select RTC_LIB
@@ -239,9 +240,6 @@
def_bool y
depends on X86_64 || INTEL_IOMMU || DMA_API_DEBUG || SWIOTLB
-config NEED_SG_DMA_LENGTH
- def_bool y
-
config GENERIC_ISA_DMA
def_bool y
depends on ISA_DMA_API
diff --git a/lib/Kconfig b/lib/Kconfig
index 2f69085..aeb7fae 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -429,6 +429,9 @@
bool
default n
+config NEED_SG_DMA_LENGTH
+ bool
+
config IOMMU_HELPER
bool