1 files changed, 12 insertions, 1 deletions

diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 94300fe46cce..a3b6b82108b9 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -27,11 +27,22 @@ extern unsigned long __sw_hweight64(__u64 w);
              (bit) = find_next_bit((addr), (size), (bit) + 1))
 
 /* same as for_each_set_bit() but use bit as value to start with */
-#define for_each_set_bit_cont(bit, addr, size) \
+#define for_each_set_bit_from(bit, addr, size) \
         for ((bit) = find_next_bit((addr), (size), (bit));      \
              (bit) < (size);                                    \
              (bit) = find_next_bit((addr), (size), (bit) + 1))
 
+#define for_each_clear_bit(bit, addr, size) \
+        for ((bit) = find_first_zero_bit((addr), (size));       \
+             (bit) < (size);                                    \
+             (bit) = find_next_zero_bit((addr), (size), (bit) + 1))
+
+/* same as for_each_clear_bit() but use bit as value to start with */
+#define for_each_clear_bit_from(bit, addr, size) \
+        for ((bit) = find_next_zero_bit((addr), (size), (bit)); \
+             (bit) < (size);                                    \
+             (bit) = find_next_zero_bit((addr), (size), (bit) + 1))
+
 static __inline__ int get_bitmask_order(unsigned int count)
 {
         int order;