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Subject[PATCH 10/11] lib: consolidate the GENERIC_HWEIGHT symbol
Date
Introduce a new ARCH_HAS_HWEIGHT symbol for alpha and ia64, and just
default to the generic version otherwise.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
arch/alpha/Kconfig | 5 +----
arch/arc/Kconfig | 3 ---
arch/arm/Kconfig | 4 ----
arch/arm64/Kconfig | 3 ---
arch/c6x/Kconfig | 3 ---
arch/csky/Kconfig | 3 ---
arch/h8300/Kconfig | 3 ---
arch/hexagon/Kconfig | 3 ---
arch/ia64/Kconfig | 1 +
arch/m68k/Kconfig | 4 ----
arch/microblaze/Kconfig | 3 ---
arch/mips/Kconfig | 4 ----
arch/nds32/Kconfig | 3 ---
arch/nios2/Kconfig | 3 ---
arch/openrisc/Kconfig | 3 ---
arch/parisc/Kconfig | 4 ----
arch/powerpc/Kconfig | 4 ----
arch/riscv/Kconfig | 3 ---
arch/s390/Kconfig | 3 ---
arch/sh/Kconfig | 3 ---
arch/sparc/Kconfig | 4 ----
arch/unicore32/Kconfig | 3 ---
arch/x86/Kconfig | 3 ---
arch/x86/um/Kconfig | 3 ---
arch/xtensa/Kconfig | 3 ---
lib/Kconfig | 7 +++++++
26 files changed, 9 insertions(+), 79 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 65b5514e5a7f..a549c53563e8 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -2,6 +2,7 @@
config ALPHA
bool
default y
+ select ARCH_HAS_HWEIGHT if ALPHA_EV67
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select ARCH_NO_PREEMPT
@@ -446,10 +447,6 @@ config ALPHA_IRONGATE
depends on ALPHA_NAUTILUS
default y

-config GENERIC_HWEIGHT
- bool
- default y if !ALPHA_EV67
-
config ALPHA_AVANTI
bool
depends on ALPHA_XL || ALPHA_AVANTI_CH
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 6476404b98b8..8bf4c0f7cc1d 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -72,9 +72,6 @@ config MMU
config NO_IOPORT_MAP
def_bool y

-config GENERIC_HWEIGHT
- def_bool y
-
config HAVE_ARCH_TRANSPARENT_HUGEPAGE
def_bool y
depends on ARC_MMU_V4
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c230fb1e09ba..b47825767e3d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -182,10 +182,6 @@ config ARCH_HAS_BANDGAP
config FIX_EARLYCON_MEM
def_bool y if MMU

-config GENERIC_HWEIGHT
- bool
- default y
-
config ARCH_MAY_HAVE_PC_FDC
bool

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 7cc3334aba29..98c3776ccf6b 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -237,9 +237,6 @@ config ILLEGAL_POINTER_VALUE
hex
default 0xdead000000000000

-config GENERIC_HWEIGHT
- def_bool y
-
config ZONE_DMA32
def_bool y

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 19b145ef7d92..c439d2f46af0 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -28,9 +28,6 @@ config MMU
config FPU
def_bool n

-config GENERIC_HWEIGHT
- def_bool y
-
config C6X_BIG_KERNEL
bool "Build a big kernel"
help
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig
index c0a49cbd3df0..14a9905e99a4 100644
--- a/arch/csky/Kconfig
+++ b/arch/csky/Kconfig
@@ -84,9 +84,6 @@ config CPU_NO_USER_BKPT
instruction exception.
In kernel we parse the *regs->pc to determine whether to send SIGTRAP or not.

-config GENERIC_HWEIGHT
- def_bool y
-
config MMU
def_bool y

diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 4f5a1efab822..77ce104bb42e 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -27,9 +27,6 @@ config H8300
config CPU_BIG_ENDIAN
def_bool y

-config GENERIC_HWEIGHT
- def_bool y
-
config NO_IOPORT_MAP
def_bool y

diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 7a01f4c5a4f6..fb2996063d5a 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -61,9 +61,6 @@ config MMU
config GENERIC_IRQ_PROBE
def_bool y

-config GENERIC_HWEIGHT
- def_bool y
-
menu "Machine selection"

choice
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index fc44c046953e..c9eb106b1f4c 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -8,6 +8,7 @@ menu "Processor type and features"

config IA64
bool
+ select ARCH_HAS_HWEIGHT
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select ACPI if (!IA64_HP_SIM)
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 1bf6abaea604..91b150b6572c 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -38,10 +38,6 @@ config ARCH_HAS_ILOG2_U32
config ARCH_HAS_ILOG2_U64
bool

-config GENERIC_HWEIGHT
- bool
- default y
-
config TIME_LOW_RES
bool
default y
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index d8907d6f969c..0185ac1f0268 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -71,9 +71,6 @@ config ARCH_HAS_ILOG2_U32
config ARCH_HAS_ILOG2_U64
def_bool n

-config GENERIC_HWEIGHT
- def_bool y
-
source "arch/microblaze/Kconfig.platform"

menu "Processor type and features"
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index bd0c9be7e7cf..04e041cac595 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1042,10 +1042,6 @@ source "arch/mips/paravirt/Kconfig"

endmenu

-config GENERIC_HWEIGHT
- bool
- default y
-
config SCHED_OMIT_FRAME_POINTER
bool
default y
diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index 7b3a36705aa8..979661f0ab51 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -50,9 +50,6 @@ config NDS32
help
Andes(nds32) Linux support.

-config GENERIC_HWEIGHT
- def_bool y
-
config GENERIC_LOCKBREAK
def_bool y
depends on PREEMPT
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 11ef63217ebe..a0485f5f0db0 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -27,9 +27,6 @@ config NIOS2
select CPU_NO_EFFICIENT_FFS
select ARCH_DISCARD_MEMBLOCK

-config GENERIC_HWEIGHT
- def_bool y
-
config NO_IOPORT_MAP
def_bool y

diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 15d7df402c19..dc026973e6f6 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -46,9 +46,6 @@ config CPU_BIG_ENDIAN
config MMU
def_bool y

-config GENERIC_HWEIGHT
- def_bool y
-
config NO_IOPORT_MAP
def_bool y

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 42282b8e086d..7d5ded83c180 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -86,10 +86,6 @@ config ARCH_HAS_ILOG2_U64
bool
default n

-config GENERIC_HWEIGHT
- bool
- default y
-
config TIME_LOW_RES
bool
depends on SMP
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a0e9207893c8..8dd4d2b24fdb 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -96,10 +96,6 @@ config GENERIC_LOCKBREAK
default y
depends on SMP && PREEMPT

-config GENERIC_HWEIGHT
- bool
- default y
-
config ARCH_HAS_DMA_SET_COHERENT_MASK
bool

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 2b173a48bdbc..0acdd7aaaaea 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -69,9 +69,6 @@ config PAGE_OFFSET
default 0xffffffff80000000 if 64BIT && MAXPHYSMEM_2GB
default 0xffffffe000000000 if 64BIT && MAXPHYSMEM_128GB

-config GENERIC_HWEIGHT
- def_bool y
-
config PGTABLE_LEVELS
int
default 3 if 64BIT
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 2a5c12be633e..9a25e19364f5 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -14,9 +14,6 @@ config ARCH_HAS_ILOG2_U32
config ARCH_HAS_ILOG2_U64
def_bool n

-config GENERIC_HWEIGHT
- def_bool y
-
config GENERIC_LOCKBREAK
def_bool y if SMP && PREEMPT

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 3d0bd7fbe11a..af6a40af1702 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -94,9 +94,6 @@ config ARCH_DEFCONFIG
default "arch/sh/configs/shx3_defconfig" if SUPERH32
default "arch/sh/configs/cayman_defconfig" if SUPERH64

-config GENERIC_HWEIGHT
- def_bool y
-
config GENERIC_LOCKBREAK
def_bool y
depends on SMP && PREEMPT
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 58270c021b01..78135ac357ed 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -187,10 +187,6 @@ config NR_CPUS

source "kernel/Kconfig.hz"

-config GENERIC_HWEIGHT
- bool
- default y
-
config ARCH_MAY_HAVE_PC_FDC
bool
default y
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 9de1d983a99a..e69a8c3232e1 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -38,9 +38,6 @@ config ARCH_HAS_ILOG2_U32
config ARCH_HAS_ILOG2_U64
bool

-config GENERIC_HWEIGHT
- def_bool y
-
config ARCH_MAY_HAVE_PC_FDC
bool

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f4cb31174e1b..7a9347c7448e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -255,9 +255,6 @@ config GENERIC_ISA_DMA
def_bool y
depends on ISA_DMA_API

-config GENERIC_HWEIGHT
- def_bool y
-
config ARCH_MAY_HAVE_PC_FDC
def_bool y
depends on ISA_DMA_API
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index f5a8cded3ca4..1628a54af003 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -49,6 +49,3 @@ config ARCH_HAS_SC_SIGNALS

config ARCH_REUSE_HOST_VSYSCALL_AREA
def_bool !64BIT
-
-config GENERIC_HWEIGHT
- def_bool y
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index d02c25184ca0..ff57afdeda04 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -47,9 +47,6 @@ config XTENSA
with reasonable minimum requirements. The Xtensa Linux project has
a home page at <http://www.linux-xtensa.org/>.

-config GENERIC_HWEIGHT
- def_bool y
-
config ARCH_HAS_ILOG2_U32
def_bool n

diff --git a/lib/Kconfig b/lib/Kconfig
index bd2e7e74c321..91019f26d0a8 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -35,6 +35,13 @@ config RATIONAL
config GENERIC_CSUM
bool

+config ARCH_HAS_HWEIGHT
+ bool
+
+config GENERIC_HWEIGHT
+ default y if !ARCH_HAS_HWEIGHT
+ bool
+
config GENERIC_STRNCPY_FROM_USER
bool

--
2.20.1
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