X-Git-Url: http://git.archive.openwrt.org/?p=project%2Flibubox.git;a=blobdiff_plain;f=utils.h;h=9688a6a42e4f53906f959d9743ae6576ec9a56bf;hp=5323c6f9619fa4c96664dabc261d7adda325424e;hb=9203927e585d3fec720c9f654e3e263e350bb02c;hpb=31b3893a72493c849c67aa1cd8c7c4c457ca360c

diff --git a/utils.h b/utils.h
index 5323c6f..9688a6a 100644
--- a/utils.h
+++ b/utils.h
@@ -167,6 +167,8 @@ static inline uint16_t __u_bswap16(uint16_t val)
 #define BITS_PER_LONG (8 * sizeof(unsigned long))
 #endif
 
+#define BITFIELD_SIZE(_n) (((_n) + (BITS_PER_LONG - 1)) / BITS_PER_LONG)
+
 static inline void bitfield_set(unsigned long *bits, int bit)
 {
 	bits[bit / BITS_PER_LONG] |= (1UL << (bit % BITS_PER_LONG));