[LLC]: Fix sparse warnings

Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

include/net/llc.h

···
 	atomic_inc(&sap->refcnt);
 }
 
+extern void llc_sap_close(struct llc_sap *sap);
+
 static inline void llc_sap_put(struct llc_sap *sap)
 {
-	extern void llc_sap_close(struct llc_sap *sap);
-
 	if (atomic_dec_and_test(&sap->refcnt))
 		llc_sap_close(sap);
 }
···
 
 extern int llc_build_and_send_ui_pkt(struct llc_sap *sap, struct sk_buff *skb,
 				     unsigned char *dmac, unsigned char dsap);
+
+extern void llc_sap_handler(struct llc_sap *sap, struct sk_buff *skb);
+extern void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb);
 
 extern int llc_station_init(void);
 extern void llc_station_exit(void);
···
 #ifdef CONFIG_SYSCTL
 extern int llc_sysctl_init(void);
 extern void llc_sysctl_exit(void);
+
+extern int sysctl_llc2_ack_timeout;
+extern int sysctl_llc2_busy_timeout;
+extern int sysctl_llc2_p_timeout;
+extern int sysctl_llc2_rej_timeout;
+extern int sysctl_llc_station_ack_timeout;
 #else
 #define llc_sysctl_init() (0)
 #define llc_sysctl_exit() do { } while(0)

include/net/llc_conn.h

···
 	return skb->cb[sizeof(skb->cb) - 1];
 }
 
-extern struct sock *llc_sk_alloc(int family, int priority, struct proto *prot);
+extern struct sock *llc_sk_alloc(int family, unsigned int __nocast priority,
+				 struct proto *prot);
 extern void llc_sk_free(struct sock *sk);
 
 extern void llc_sk_reset(struct sock *sk);

net/llc/af_llc.c

···
 	return rc;
 }
 
-int llc_wait_data(struct sock *sk, long timeo)
+static int llc_wait_data(struct sock *sk, long timeo)
 {
 	int rc;
 
···
 	.mmap	     = sock_no_mmap,
 	.sendpage    = sock_no_sendpage,
 };
-
-extern void llc_sap_handler(struct llc_sap *sap, struct sk_buff *skb);
-extern void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb);
 
 static char llc_proc_err_msg[] __initdata =
         KERN_CRIT "LLC: Unable to register the proc_fs entries\n";

net/llc/llc_c_ac.c

···
 	return 0;
 }
 
-int llc_conn_ac_inc_vs_by_1(struct sock *sk, struct sk_buff *skb)
+static int llc_conn_ac_inc_vs_by_1(struct sock *sk, struct sk_buff *skb)
 {
 	llc_sk(sk)->vS = (llc_sk(sk)->vS + 1) % 128;
 	return 0;

net/llc/llc_conn.c

···
  *	Allocates a LLC sock and initializes it. Returns the new LLC sock
  *	or %NULL if there's no memory available for one
  */
-struct sock *llc_sk_alloc(int family, int priority, struct proto *prot)
+struct sock *llc_sk_alloc(int family, unsigned int __nocast priority,
+			 struct proto *prot)
 {
 	struct sock *sk = sk_alloc(family, priority, prot, 1);
 

net/llc/llc_core.c

···
 	write_unlock_bh(&llc_sap_list_lock);
 }
 
-struct llc_sap *__llc_sap_find(unsigned char sap_value)
+static struct llc_sap *__llc_sap_find(unsigned char sap_value)
 {
 	struct llc_sap* sap;
 

net/llc/sysctl_net_llc.c

···
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/sysctl.h>
+#include <net/llc.h>
 
 #ifndef CONFIG_SYSCTL
 #error This file should not be compiled without CONFIG_SYSCTL defined
 #endif
-
-extern int sysctl_llc2_ack_timeout;
-extern int sysctl_llc2_busy_timeout;
-extern int sysctl_llc2_p_timeout;
-extern int sysctl_llc2_rej_timeout;
-extern int sysctl_llc_station_ack_timeout;
 
 static struct ctl_table llc2_timeout_table[] = {
 	{