seqlock: Get rid of SEQLOCK_UNLOCKED

All static seqlock should be initialized with the lockdep friendly
__SEQLOCK_UNLOCKED() macro.

Remove legacy SEQLOCK_UNLOCKED() macro.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>
Link: http://lkml.kernel.org/r/%3C1306238888.3026.31.camel%40edumazet-laptop%3E
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

arch/ia64/kernel/time.c

@@ -36,7 +36,7 @@
 static cycle_t itc_get_cycles(struct clocksource *cs);
 
 struct fsyscall_gtod_data_t fsyscall_gtod_data = {
-	.lock = SEQLOCK_UNLOCKED,
+	.lock = __SEQLOCK_UNLOCKED(fsyscall_gtod_data.lock),
 };
 
 struct itc_jitter_data_t itc_jitter_data;

arch/x86/kernel/vsyscall_64.c

@@ -59,7 +59,7 @@ int __vgetcpu_mode __section_vgetcpu_mode;
 
 struct vsyscall_gtod_data __vsyscall_gtod_data __section_vsyscall_gtod_data =
 {
-	.lock = SEQLOCK_UNLOCKED,
+	.lock = __SEQLOCK_UNLOCKED(__vsyscall_gtod_data.lock),
 	.sysctl_enabled = 1,
 };
 

include/linux/seqlock.h

@@ -41,9 +41,6 @@ typedef struct {
 #define __SEQLOCK_UNLOCKED(lockname) \
 		 { 0, __SPIN_LOCK_UNLOCKED(lockname) }
 
-#define SEQLOCK_UNLOCKED \
-		 __SEQLOCK_UNLOCKED(old_style_seqlock_init)
-
 #define seqlock_init(x)					\
 	do {						\
 		(x)->sequence = 0;			\

net/ipv4/inet_connection_sock.c

@@ -33,7 +33,7 @@ EXPORT_SYMBOL(inet_csk_timer_bug_msg);
  * This struct holds the first and last local port number.
  */
 struct local_ports sysctl_local_ports __read_mostly = {
-	.lock = SEQLOCK_UNLOCKED,
+	.lock = __SEQLOCK_UNLOCKED(sysctl_local_ports.lock),
 	.range = { 32768, 61000 },
 };