<linux/filter.h> needs <linux/types.h>, and it's not automatically included.

This fixes build errors on, for example, a Red Hat system with a 2.6.9
kernel.

diff --git a/bpf/net/bpf_filter.c b/bpf/net/bpf_filter.c
index 47e91ced50c9a5c8d8ce025ac9f1f5c139e0a697..ffe04ce358fccb353503c14774061c2833a1ec43 100644 (file)
--- a/bpf/net/bpf_filter.c
+++ b/bpf/net/bpf_filter.c
@@ -196,6 +196,7 @@ m_xhalf(m, k, err)
 #endif
 
 #ifdef __linux__
+#include <linux/types.h>
 #include <linux/if_packet.h>
 #include <linux/filter.h>
 #endif