include/linux: printk is needed in filter.h when CONFIG_BPF_JIT is defined
for make V=1 EXTRA_CFLAGS=-W ARCH=arm allmodconfig
printk is need when CONFIG_BPF_JIT is defined
or it will report pr_err and print_hex_dump are implicit declaration
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/filter.h b/include/linux/filter.h
index d7d2508..d1248f40 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -48,6 +48,9 @@
extern int sk_get_filter(struct sock *sk, struct sock_filter __user *filter, unsigned len);
#ifdef CONFIG_BPF_JIT
+#include <linux/linkage.h>
+#include <linux/printk.h>
+
extern void bpf_jit_compile(struct sk_filter *fp);
extern void bpf_jit_free(struct sk_filter *fp);