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Diffstat (limited to 'arch/m68k/include/asm/bitops_no.h')
-rw-r--r--arch/m68k/include/asm/bitops_no.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/bitops_no.h b/arch/m68k/include/asm/bitops_no.h
index 6b0e2d349f0..b816299816a 100644
--- a/arch/m68k/include/asm/bitops_no.h
+++ b/arch/m68k/include/asm/bitops_no.h
@@ -320,6 +320,50 @@ found_middle:
return result + ffz(__swab32(tmp));
}
+static inline unsigned long find_next_bit_le(const void *addr, unsigned
+ long size, unsigned long offset)
+{
+ const unsigned long *p = addr;
+ unsigned long result = offset & ~(BITS_PER_LONG - 1);
+ unsigned long tmp;
+
+ if (offset >= size)
+ return size;
+ p += offset / BITS_PER_LONG;
+ size -= result;
+ offset &= (BITS_PER_LONG - 1UL);
+ if (offset) {
+ tmp = __swab32(*(p++));
+ tmp &= (~0UL << offset);
+ if (size < BITS_PER_LONG)
+ goto found_first;
+ if (tmp)
+ goto found_middle;
+ size -= BITS_PER_LONG;
+ result += BITS_PER_LONG;
+ }
+
+ while (size & ~(BITS_PER_LONG - 1)) {
+ tmp = *(p++);
+ if (tmp)
+ goto found_middle_swap;
+ result += BITS_PER_LONG;
+ size -= BITS_PER_LONG;
+ }
+ if (!size)
+ return result;
+ tmp = __swab32(*p);
+found_first:
+ tmp &= (~0UL >> (BITS_PER_LONG - size));
+ if (tmp == 0UL) /* Are any bits set? */
+ return result + size; /* Nope. */
+found_middle:
+ return result + __ffs(tmp);
+
+found_middle_swap:
+ return result + __ffs(__swab32(tmp));
+}
+
#endif /* __KERNEL__ */
#include <asm-generic/bitops/fls.h>