filter: fix va_list build error
This patch fixes the following build error.
In file included from include/linux/filter.h:52:0,
from arch/arm/net/bpf_jit_32.c:14:
include/linux/printk.h:54:2: error: unknown type name ‘va_list’
include/linux/printk.h:105:21: error: unknown type name ‘va_list’
include/linux/printk.h:108:30: error: unknown type name ‘va_list’
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/filter.h b/include/linux/filter.h
index d1248f40..c050dcc 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -48,6 +48,7 @@
extern int sk_get_filter(struct sock *sk, struct sock_filter __user *filter, unsigned len);
#ifdef CONFIG_BPF_JIT
+#include <stdarg.h>
#include <linux/linkage.h>
#include <linux/printk.h>