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authorDmitry Torokhov <dtor_core@ameritech.net>2006-04-02 00:08:05 -0500
committerDmitry Torokhov <dtor_core@ameritech.net>2006-04-02 00:08:05 -0500
commit95d465fd750897ab32462a6702fbfe1b122cbbc0 (patch)
tree65c38b2f11c51bb6932e44dd6c92f15b0091abfe /include/asm-generic/bitops/ffz.h
parent642fde17dceceb56c7ba2762733ac688666ae657 (diff)
parent683aa4012f53b2ada0f430487e05d37b0d94e90a (diff)
Manual merge with Linus.
Conflicts: arch/powerpc/kernel/setup-common.c drivers/input/keyboard/hil_kbd.c drivers/input/mouse/hil_ptr.c
Diffstat (limited to 'include/asm-generic/bitops/ffz.h')
-rw-r--r--include/asm-generic/bitops/ffz.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-generic/bitops/ffz.h b/include/asm-generic/bitops/ffz.h
new file mode 100644
index 00000000000..6744bd4cdf4
--- /dev/null
+++ b/include/asm-generic/bitops/ffz.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_GENERIC_BITOPS_FFZ_H_
+#define _ASM_GENERIC_BITOPS_FFZ_H_
+
+/*
+ * ffz - find first zero in word.
+ * @word: The word to search
+ *
+ * Undefined if no zero exists, so code should check against ~0UL first.
+ */
+#define ffz(x) __ffs(~(x))
+
+#endif /* _ASM_GENERIC_BITOPS_FFZ_H_ */