The patch titled
bitops: introduce CONFIG_GENERIC_FIND_BIT_LE
has been added to the -mm tree. Its filename is
bitops-introduce-config_generic_find_bit_le.patch
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------------------------------------------------------
Subject: bitops: introduce CONFIG_GENERIC_FIND_BIT_LE
From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
This introduces CONFIG_GENERIC_FIND_BIT_LE to tell whether to use generic
implementation of find_*_bit_le() in lib/find_next_bit.c or not.
For now we select CONFIG_GENERIC_FIND_BIT_LE for all architectures which
enable CONFIG_GENERIC_FIND_NEXT_BIT.
But m68knommu wants to define own faster find_next_zero_bit_le() and
continues using generic find_next_{,zero_}bit().
(CONFIG_GENERIC_FIND_NEXT_BIT and !CONFIG_GENERIC_FIND_BIT_LE)
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Greg Ungerer <gerg@xxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/frv/Kconfig | 4 ++++
arch/h8300/Kconfig | 4 ++++
arch/m32r/Kconfig | 4 ++++
arch/m68knommu/Kconfig | 4 ++++
arch/microblaze/Kconfig | 3 +++
arch/mips/Kconfig | 4 ++++
arch/parisc/Kconfig | 4 ++++
arch/powerpc/Kconfig | 4 ++++
arch/sh/Kconfig | 3 +++
arch/sparc/Kconfig | 4 ++++
arch/xtensa/Kconfig | 3 +++
lib/Kconfig | 3 +++
lib/Makefile | 1 +
lib/find_next_bit.c | 3 +++
14 files changed, 48 insertions(+)
diff -puN arch/frv/Kconfig~bitops-introduce-config_generic_find_bit_le arch/frv/Kconfig
--- a/arch/frv/Kconfig~bitops-introduce-config_generic_find_bit_le
+++ a/arch/frv/Kconfig
@@ -23,6 +23,10 @@ config GENERIC_FIND_NEXT_BIT
bool
default y
+config GENERIC_FIND_BIT_LE
+ bool
+ default y
+
config GENERIC_HWEIGHT
bool
default y
diff -puN arch/h8300/Kconfig~bitops-introduce-config_generic_find_bit_le arch/h8300/Kconfig
--- a/arch/h8300/Kconfig~bitops-introduce-config_generic_find_bit_le
+++ a/arch/h8300/Kconfig
@@ -45,6 +45,10 @@ config GENERIC_FIND_NEXT_BIT
bool
default y
+config GENERIC_FIND_BIT_LE
+ bool
+ default y
+
config GENERIC_HWEIGHT
bool
default y
diff -puN arch/m32r/Kconfig~bitops-introduce-config_generic_find_bit_le arch/m32r/Kconfig
--- a/arch/m32r/Kconfig~bitops-introduce-config_generic_find_bit_le
+++ a/arch/m32r/Kconfig
@@ -260,6 +260,10 @@ config GENERIC_FIND_NEXT_BIT
bool
default y
+config GENERIC_FIND_BIT_LE
+ bool
+ default y
+
config GENERIC_HWEIGHT
bool
default y
diff -puN arch/m68knommu/Kconfig~bitops-introduce-config_generic_find_bit_le arch/m68knommu/Kconfig
--- a/arch/m68knommu/Kconfig~bitops-introduce-config_generic_find_bit_le
+++ a/arch/m68knommu/Kconfig
@@ -41,6 +41,10 @@ config GENERIC_FIND_NEXT_BIT
bool
default y
+config GENERIC_FIND_BIT_LE
+ bool
+ default y
+
config GENERIC_GPIO
bool
default n
diff -puN arch/microblaze/Kconfig~bitops-introduce-config_generic_find_bit_le arch/microblaze/Kconfig
--- a/arch/microblaze/Kconfig~bitops-introduce-config_generic_find_bit_le
+++ a/arch/microblaze/Kconfig
@@ -36,6 +36,9 @@ config ARCH_HAS_ILOG2_U64
config GENERIC_FIND_NEXT_BIT
def_bool y
+config GENERIC_FIND_BIT_LE
+ def_bool y
+
config GENERIC_HWEIGHT
def_bool y
diff -puN arch/mips/Kconfig~bitops-introduce-config_generic_find_bit_le arch/mips/Kconfig
--- a/arch/mips/Kconfig~bitops-introduce-config_generic_find_bit_le
+++ a/arch/mips/Kconfig
@@ -773,6 +773,10 @@ config GENERIC_FIND_NEXT_BIT
bool
default y
+config GENERIC_FIND_BIT_LE
+ bool
+ default y
+
config GENERIC_HWEIGHT
bool
default y
diff -puN arch/parisc/Kconfig~bitops-introduce-config_generic_find_bit_le arch/parisc/Kconfig
--- a/arch/parisc/Kconfig~bitops-introduce-config_generic_find_bit_le
+++ a/arch/parisc/Kconfig
@@ -52,6 +52,10 @@ config GENERIC_FIND_NEXT_BIT
bool
default y
+config GENERIC_FIND_BIT_LE
+ bool
+ default y
+
config GENERIC_BUG
bool
default y
diff -puN arch/powerpc/Kconfig~bitops-introduce-config_generic_find_bit_le arch/powerpc/Kconfig
--- a/arch/powerpc/Kconfig~bitops-introduce-config_generic_find_bit_le
+++ a/arch/powerpc/Kconfig
@@ -95,6 +95,10 @@ config GENERIC_FIND_NEXT_BIT
bool
default y
+config GENERIC_FIND_BIT_LE
+ bool
+ default y
+
config GENERIC_GPIO
bool
help
diff -puN arch/sh/Kconfig~bitops-introduce-config_generic_find_bit_le arch/sh/Kconfig
--- a/arch/sh/Kconfig~bitops-introduce-config_generic_find_bit_le
+++ a/arch/sh/Kconfig
@@ -75,6 +75,9 @@ config GENERIC_CSUM
config GENERIC_FIND_NEXT_BIT
def_bool y
+config GENERIC_FIND_BIT_LE
+ def_bool y
+
config GENERIC_HWEIGHT
def_bool y
diff -puN arch/sparc/Kconfig~bitops-introduce-config_generic_find_bit_le arch/sparc/Kconfig
--- a/arch/sparc/Kconfig~bitops-introduce-config_generic_find_bit_le
+++ a/arch/sparc/Kconfig
@@ -192,6 +192,10 @@ config GENERIC_FIND_NEXT_BIT
bool
default y
+config GENERIC_FIND_BIT_LE
+ bool
+ default y
+
config GENERIC_HWEIGHT
bool
default y if !ULTRA_HAS_POPULATION_COUNT
diff -puN arch/xtensa/Kconfig~bitops-introduce-config_generic_find_bit_le arch/xtensa/Kconfig
--- a/arch/xtensa/Kconfig~bitops-introduce-config_generic_find_bit_le
+++ a/arch/xtensa/Kconfig
@@ -21,6 +21,9 @@ config RWSEM_XCHGADD_ALGORITHM
config GENERIC_FIND_NEXT_BIT
def_bool y
+config GENERIC_FIND_BIT_LE
+ def_bool y
+
config GENERIC_HWEIGHT
def_bool y
diff -puN lib/Kconfig~bitops-introduce-config_generic_find_bit_le lib/Kconfig
--- a/lib/Kconfig~bitops-introduce-config_generic_find_bit_le
+++ a/lib/Kconfig
@@ -22,6 +22,9 @@ config GENERIC_FIND_FIRST_BIT
config GENERIC_FIND_NEXT_BIT
bool
+config GENERIC_FIND_BIT_LE
+ bool
+
config GENERIC_FIND_LAST_BIT
bool
default y
diff -puN lib/Makefile~bitops-introduce-config_generic_find_bit_le lib/Makefile
--- a/lib/Makefile~bitops-introduce-config_generic_find_bit_le
+++ a/lib/Makefile
@@ -38,6 +38,7 @@ lib-$(CONFIG_RWSEM_GENERIC_SPINLOCK) +=
lib-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem.o
lib-$(CONFIG_GENERIC_FIND_FIRST_BIT) += find_next_bit.o
lib-$(CONFIG_GENERIC_FIND_NEXT_BIT) += find_next_bit.o
+lib-$(CONFIG_GENERIC_FIND_BIT_LE) += find_next_bit.o
obj-$(CONFIG_GENERIC_FIND_LAST_BIT) += find_last_bit.o
CFLAGS_hweight.o = $(subst $(quote),,$(CONFIG_ARCH_HWEIGHT_CFLAGS))
diff -puN lib/find_next_bit.c~bitops-introduce-config_generic_find_bit_le lib/find_next_bit.c
--- a/lib/find_next_bit.c~bitops-introduce-config_generic_find_bit_le
+++ a/lib/find_next_bit.c
@@ -160,6 +160,7 @@ EXPORT_SYMBOL(find_first_zero_bit);
#endif /* CONFIG_GENERIC_FIND_FIRST_BIT */
#ifdef __BIG_ENDIAN
+#ifdef CONFIG_GENERIC_FIND_BIT_LE
/* include/linux/byteorder does not support "unsigned long" type */
static inline unsigned long ext2_swabp(const unsigned long * x)
@@ -273,4 +274,6 @@ found_middle_swap:
return result + __ffs(ext2_swab(tmp));
}
EXPORT_SYMBOL(find_next_bit_le);
+
+#endif /* CONFIG_GENERIC_FIND_BIT_LE */
#endif /* __BIG_ENDIAN */
_
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
smp-move-smp-setup-functions-to-kernel-smpc.patch
kvm-stop-including-asm-generic-bitops-leh-directly.patch
rds-stop-including-asm-generic-bitops-leh-directly.patch
bitops-merge-little-and-big-endian-definisions-in-asm-generic-bitops-leh.patch
asm-generic-rename-generic-little-endian-bitops-functions.patch
asm-generic-change-little-endian-bitops-to-take-any-pointer-types.patch
powerpc-introduce-little-endian-bitops.patch
s390-introduce-little-endian-bitops.patch
arm-introduce-little-endian-bitops.patch
m68k-introduce-little-endian-bitops.patch
bitops-introduce-config_generic_find_bit_le.patch
m68knommu-introduce-little-endian-bitops.patch
bitops-introduce-little-endian-bitops-for-most-architectures.patch
asm-generic-use-little-endian-bitops.patch
kvm-use-little-endian-bitops.patch
rds-use-little-endian-bitops.patch
ext3-use-little-endian-bitops.patch
ext4-use-little-endian-bitops.patch
ocfs2-use-little-endian-bitops.patch
nilfs2-use-little-endian-bitops.patch
reiserfs-use-little-endian-bitops.patch
udf-use-little-endian-bitops.patch
ufs-use-little-endian-bitops.patch
md-use-little-endian-bitops.patch
dm-use-little-endian-bitops.patch
bitops-remove-ext2-non-atomic-bitops-from-asm-bitopsh.patch
m68k-remove-inline-asm-from-minix_find_first_zero_bit.patch
bitops-remove-minix-bitops-from-asm-bitopsh.patch
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