X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Fidtree%2Fidtree.c;h=e10c17239cdfc407e40da7c77dfb4e5f57edc42a;hb=4c1266e86aa8accb64ce116887e9ce2ec66dd798;hp=5bd8882220868d02d4d172ded3967643f6507b17;hpb=fb33661a05d2e42b675f4d84718312b400ae52a4;p=ccan

diff --git a/ccan/idtree/idtree.c b/ccan/idtree/idtree.c
index 5bd88822..e10c1723 100644
--- a/ccan/idtree/idtree.c
+++ b/ccan/idtree/idtree.c
@@ -42,9 +42,9 @@
 #define MAX_LEVEL (MAX_ID_SHIFT + IDTREE_BITS - 1) / IDTREE_BITS
 #define IDTREE_FREE_MAX MAX_LEVEL + MAX_LEVEL
 
-#define set_bit(bit, v) (v) |= (1<<(bit))
-#define clear_bit(bit, v) (v) &= ~(1<<(bit))
-#define test_bit(bit, v) ((v) & (1<<(bit)))
+#define set_bit(bit, v) (v) |= (1U<<(bit))
+#define clear_bit(bit, v) (v) &= ~(1U<<(bit))
+#define test_bit(bit, v) ((v) & (1U<<(bit)))
 
 struct idtree_layer {
 	uint32_t		 bitmap;
@@ -122,7 +122,7 @@ restart:
 			/* no space available go back to previous layer. */
 			l++;
 			oid = id;
-			id = (id | ((1 << (IDTREE_BITS*l))-1)) + 1;
+			id = (id | ((1U << (IDTREE_BITS*l))-1)) + 1;
 
 			/* if already at the top layer, we need to grow */
 			if (!(p = pa[l])) {
@@ -278,7 +278,7 @@ void *idtree_lookup(const struct idtree *idp, int id)
 	 * present.  If so, tain't one of ours!
 	 */
 	if (n + IDTREE_BITS < 31 &&
-	    (id & ~(~0 << MAX_ID_SHIFT)) >> (n + IDTREE_BITS))
+	    (id & ~(~0U << MAX_ID_SHIFT)) >> (n + IDTREE_BITS))
 	     return NULL;
 
 	/* Mask off upper bits we don't use for the search. */