4 files changed, 15 insertions, 5 deletions
diff --git a/include/cutils/bitops.h b/include/cutils/bitops.h
index c26dc54..045830d 100644
--- a/include/cutils/bitops.h
+++ b/include/cutils/bitops.h
@@ -59,7 +59,7 @@ static inline void bitmask_init(unsigned int *bitmask, int num_bits)
 static inline int bitmask_ffz(unsigned int *bitmask, int num_bits)
 {
     int bit, result;
-    unsigned int i;
+    size_t i;
 
     for (i = 0; i < BITS_TO_WORDS(num_bits); i++) {
         bit = ffs(~bitmask[i]);
@@ -77,7 +77,7 @@ static inline int bitmask_ffz(unsigned int *bitmask, int num_bits)
 
 static inline int bitmask_weight(unsigned int *bitmask, int num_bits)
 {
-    int i;
+    size_t i;
     int weight = 0;
 
     for (i = 0; i < BITS_TO_WORDS(num_bits); i++)
diff --git a/include/cutils/fs.h b/include/cutils/fs.h
index d1d4cf2..70f0b92 100644
--- a/include/cutils/fs.h
+++ b/include/cutils/fs.h
@@ -18,6 +18,7 @@
 #define __CUTILS_FS_H
 
 #include <sys/types.h>
+#include <unistd.h>
 
 /*
  * TEMP_FAILURE_RETRY is defined by some, but not all, versions of
diff --git a/include/cutils/list.h b/include/cutils/list.h
index 945729a..4ba2cfd 100644
--- a/include/cutils/list.h
+++ b/include/cutils/list.h
@@ -44,10 +44,10 @@ struct listnode
 #define list_for_each_reverse(node, list) \
     for (node = (list)->prev; node != (list); node = node->prev)
 
-#define list_for_each_safe(node, next, list) \
-    for (node = (list)->next, next = node->next; \
+#define list_for_each_safe(node, n, list) \
+    for (node = (list)->next, n = node->next; \
          node != (list); \
-         node = next, next = node->next)
+         node = n, n = node->next)
 
 static inline void list_init(struct listnode *node)
 {
@@ -63,6 +63,14 @@ static inline void list_add_tail(struct listnode *head, struct listnode *item)
     head->prev = item;
 }
 
+static inline void list_add_head(struct listnode *head, struct listnode *item)
+{
+    item->next = head->next;
+    item->prev = head;
+    head->next->prev = item;
+    head->next = item;
+}
+
 static inline void list_remove(struct listnode *item)
 {
     item->next->prev = item->prev;
diff --git a/include/cutils/trace.h b/include/cutils/trace.h
index 62a4e9f..fd9bc6a 100644
--- a/include/cutils/trace.h
+++ b/include/cutils/trace.h
@@ -20,6 +20,7 @@
 #include <inttypes.h>
 #include <stdbool.h>
 #include <stdint.h>
+#include <stdio.h>
 #include <sys/cdefs.h>
 #include <sys/types.h>
 #include <unistd.h>