Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanup patches from Ingo Molnar:
 "Misc smaller cleanups"

* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: ptrace.c only needs export.h and not the full module.h
  x86, apb_timer: remove unused variable percpu_timer
  um: don't compare a pointer to 0
  arch/x86/platform/uv: use ARRAY_SIZE where possible

arch/x86/kernel/apb_timer.c

@@ -311,7 +311,6 @@ void __init apbt_time_init(void)
 #ifdef CONFIG_SMP
 	int i;
 	struct sfi_timer_table_entry *p_mtmr;
-	unsigned int percpu_timer;
 	struct apbt_dev *adev;
 #endif
 
@@ -346,13 +345,10 @@ void __init apbt_time_init(void)
 		return;
 	}
 	pr_debug("%s: %d CPUs online\n", __func__, num_online_cpus());
-	if (num_possible_cpus() <= sfi_mtimer_num) {
-		percpu_timer = 1;
+	if (num_possible_cpus() <= sfi_mtimer_num)
 		apbt_num_timers_used = num_possible_cpus();
-	} else {
-		percpu_timer = 0;
+	else
 		apbt_num_timers_used = 1;
-	}
 	pr_debug("%s: %d APB timers used\n", __func__, apbt_num_timers_used);
 
 	/* here we set up per CPU timer data structure */

arch/x86/kernel/ptrace.c

@@ -22,7 +22,7 @@
 #include <linux/perf_event.h>
 #include <linux/hw_breakpoint.h>
 #include <linux/rcupdate.h>
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/context_tracking.h>
 
 #include <asm/uaccess.h>

arch/x86/platform/uv/tlb_uv.c

@@ -1467,7 +1467,7 @@ static ssize_t ptc_proc_write(struct file *file, const char __user *user,
 	}
 
 	if (input_arg == 0) {
-		elements = sizeof(stat_description)/sizeof(*stat_description);
+		elements = ARRAY_SIZE(stat_description);
 		printk(KERN_DEBUG "# cpu:      cpu number\n");
 		printk(KERN_DEBUG "Sender statistics:\n");
 		for (i = 0; i < elements; i++)
@@ -1508,7 +1508,7 @@ static int parse_tunables_write(struct bau_control *bcp, char *instr,
 	char *q;
 	int cnt = 0;
 	int val;
-	int e = sizeof(tunables) / sizeof(*tunables);
+	int e = ARRAY_SIZE(tunables);
 
 	p = instr + strspn(instr, WHITESPACE);
 	q = p;

arch/x86/um/fault.c

@@ -20,7 +20,7 @@ int arch_fixup(unsigned long address, struct uml_pt_regs *regs)
 	const struct exception_table_entry *fixup;
 
 	fixup = search_exception_tables(address);
-	if (fixup != 0) {
+	if (fixup) {
 		UPT_IP(regs) = fixup->fixup;
 		return 1;
 	}