kernel/sysctl.c: use DECLARE_SYSCTL_BASE()

Use DECLARE_SYSCTL_BASE() so that if we end up moving all
sysctls from one domain to their respective codebase they can
simply later just move their respective register_sysctl_base()
call. This will make the change easier to read and understand.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 2888e2b..1ca3a0d 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -2838,33 +2838,18 @@ static struct ctl_table dev_table[] = {
 	{ }
 };
 
-static struct ctl_table sysctl_base_table[] = {
-	{
-		.procname	= "kernel",
-		.mode		= 0555,
-		.child		= kern_table,
-	},
-	{
-		.procname	= "vm",
-		.mode		= 0555,
-		.child		= vm_table,
-	},
-	{
-		.procname	= "debug",
-		.mode		= 0555,
-		.child		= debug_table,
-	},
-	{
-		.procname	= "dev",
-		.mode		= 0555,
-		.child		= dev_table,
-	},
-	{ }
-};
+DECLARE_SYSCTL_BASE(kernel, kern_table);
+DECLARE_SYSCTL_BASE(vm, vm_table);
+DECLARE_SYSCTL_BASE(debug, debug_table);
+DECLARE_SYSCTL_BASE(dev, dev_table);
 
 int __init sysctl_init(void)
 {
-	register_sysctl_base(sysctl);
+	register_sysctl_base(kernel);
+	register_sysctl_base(vm);
+	register_sysctl_base(debug);
+	register_sysctl_base(dev);
+
 	return 0;
 }
 #endif /* CONFIG_SYSCTL */