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authorAlexander van Heukelum <heukelum@mailshack.com>2008-04-01 11:46:19 +0200
committerIngo Molnar <mingo@elte.hu>2008-04-26 19:21:16 +0200
commit77b9bd9c49442407804c37bcc82021a35277f83c (patch)
tree251900d95c6c9c5371542d5dda7d89cb31cd0801 /arch/x86
parentd57594c203b1e7b54373080a797f0cbfa4aade68 (diff)
downloadop-kernel-dev-77b9bd9c49442407804c37bcc82021a35277f83c.zip
op-kernel-dev-77b9bd9c49442407804c37bcc82021a35277f83c.tar.gz
x86: generic versions of find_first_(zero_)bit, convert i386
Generic versions of __find_first_bit and __find_first_zero_bit are introduced as simplified versions of __find_next_bit and __find_next_zero_bit. Their compilation and use are guarded by a new config variable GENERIC_FIND_FIRST_BIT. The generic versions of find_first_bit and find_first_zero_bit are implemented in terms of the newly introduced __find_first_bit and __find_first_zero_bit. This patch does not remove the i386-specific implementation, but it does switch i386 to use the generic functions by setting GENERIC_FIND_FIRST_BIT=y for X86_32. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/Kconfig3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5639de4..1a69b68 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -77,6 +77,9 @@ config GENERIC_BUG
def_bool y
depends on BUG
+config GENERIC_FIND_FIRST_BIT
+ def_bool X86_32
+
config GENERIC_FIND_NEXT_BIT
def_bool y
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