OPTIM: buffer: remove one jump in buffer_count()

We can help gcc build an expression not involving a jump. This function
is used a lot when parsing chunks.

diff --git a/include/common/buffer.h b/include/common/buffer.h
index d46495c883f2f8e5bce16e78b781403c5dc66c68..18ced917b2849c48de1a3a1ea76ba0f237e66399 100644 (file)
--- a/include/common/buffer.h
+++ b/include/common/buffer.h
@@ -272,8 +272,8 @@ static inline const char *buffer_pointer(const struct buffer *buf, const char *p
 static inline int buffer_count(const struct buffer *buf, const char *from, const char *to)
 {
        int count = to - from;
-       if (count < 0)
-               count += buf->size;
+
+       count += count < 0 ? buf->size : 0;
        return count;
 }