diff --git a/include/linux/filter.h b/include/linux/filter.h
index 741956fa5bfdcc371ab712ade0210fe5de69fe69..8eeb205f298b078ccbaa714b2d171a50da40096d 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -155,7 +155,7 @@ extern unsigned int sk_run_filter(const struct sk_buff *skb,
 				  const struct sock_filter *filter);
 extern int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk);
 extern int sk_detach_filter(struct sock *sk);
-extern int sk_chk_filter(struct sock_filter *filter, int flen);
+extern int sk_chk_filter(struct sock_filter *filter, unsigned int flen);
 
 #ifdef CONFIG_BPF_JIT
 extern void bpf_jit_compile(struct sk_filter *fp);
diff --git a/net/core/filter.c b/net/core/filter.c
index 8fcc2d776e096164e134db9256cba2ac17dc4a92..5dea452792155fffa062a59641c1862e26f19fe0 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -436,7 +436,7 @@ static int check_load_and_stores(struct sock_filter *filter, int flen)
  *
  * Returns 0 if the rule set is legal or -EINVAL if not.
  */
-int sk_chk_filter(struct sock_filter *filter, int flen)
+int sk_chk_filter(struct sock_filter *filter, unsigned int flen)
 {
 	/*
 	 * Valid instructions are initialized to non-0.