[PATCH] ia64: fix static initializers

No need to explicitly zero out global variables.

arch/ia64/kernel/efi.c

@@ -46,7 +46,7 @@ static efi_runtime_services_t *runtime;
  * prior to creating their own entries under /proc/efi.
  */
 #ifdef CONFIG_PROC_FS
-struct proc_dir_entry *efi_dir = NULL;
+struct proc_dir_entry *efi_dir;
 #endif
 
 static unsigned long mem_limit = ~0UL;

arch/ia64/kernel/efivars.c

@@ -119,7 +119,7 @@ typedef struct _efivar_entry_t {
 */
 static spinlock_t efivars_lock = SPIN_LOCK_UNLOCKED;
 static LIST_HEAD(efivar_list);
-static struct proc_dir_entry *efi_vars_dir = NULL;
+static struct proc_dir_entry *efi_vars_dir;
 
 #define efivar_entry(n) list_entry(n, efivar_entry_t, list)