bitmap: find_last_bit()
Impact: New API
As the name suggests. For the moment everyone uses the generic one.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 024f2b0..6182913 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -134,9 +134,20 @@
*/
extern unsigned long find_first_zero_bit(const unsigned long *addr,
unsigned long size);
-
#endif /* CONFIG_GENERIC_FIND_FIRST_BIT */
+#ifdef CONFIG_GENERIC_FIND_LAST_BIT
+/**
+ * find_last_bit - find the last set bit in a memory region
+ * @addr: The address to start the search at
+ * @size: The maximum size to search
+ *
+ * Returns the bit number of the first set bit, or size.
+ */
+extern unsigned long find_last_bit(const unsigned long *addr,
+ unsigned long size);
+#endif /* CONFIG_GENERIC_FIND_LAST_BIT */
+
#ifdef CONFIG_GENERIC_FIND_NEXT_BIT
/**