x86: corruption-check: some post-move cleanups

Impact: cleanup

now that the code is moved and converted to a work queue,
there's some minor cleanups that can be done.
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86/kernel/Makefile

@@ -35,7 +35,6 @@ obj-y			+= bootflag.o e820.o
 obj-y			+= pci-dma.o quirks.o i8237.o topology.o kdebugfs.o
 obj-y			+= alternative.o i8253.o pci-nommu.o
 obj-y			+= tsc.o io_delay.o rtc.o
-obj-y			+= check.o
 
 obj-$(CONFIG_X86_TRAMPOLINE)	+= trampoline.o
 obj-y				+= process.o
@@ -105,6 +104,8 @@ microcode-$(CONFIG_MICROCODE_INTEL)	+= microcode_intel.o
 microcode-$(CONFIG_MICROCODE_AMD)	+= microcode_amd.o
 obj-$(CONFIG_MICROCODE)			+= microcode.o
 
+obj-$(CONFIG_X86_CHECK_BIOS_CORRUPTION) += check.o
+
 ###
 # 64 bit specific files
 ifeq ($(CONFIG_X86_64),y)

arch/x86/kernel/check.c

@@ -11,7 +11,6 @@
  * remaining free memory in that area and fill it with a distinct
  * pattern.
  */
-#ifdef CONFIG_X86_CHECK_BIOS_CORRUPTION
 #define MAX_SCAN_AREAS	8
 
 static int __read_mostly memory_corruption_check = -1;
@@ -23,7 +22,7 @@ static struct e820entry scan_areas[MAX_SCAN_AREAS];
 static int num_scan_areas;
 
 
-static int set_corruption_check(char *arg)
+static __init int set_corruption_check(char *arg)
 {
 	char *end;
 
@@ -33,7 +32,7 @@ static int set_corruption_check(char *arg)
 }
 early_param("memory_corruption_check", set_corruption_check);
 
-static int set_corruption_check_period(char *arg)
+static __init int set_corruption_check_period(char *arg)
 {
 	char *end;
 
@@ -43,7 +42,7 @@ static int set_corruption_check_period(char *arg)
 }
 early_param("memory_corruption_check_period", set_corruption_check_period);
 
-static int set_corruption_check_size(char *arg)
+static __init int set_corruption_check_size(char *arg)
 {
 	char *end;
 	unsigned size;
@@ -115,8 +114,6 @@ void check_for_bios_corruption(void)
 	int i;
 	int corruption = 0;
 
-	printk("dot\n");
-
 	if (!memory_corruption_check)
 		return;
 
@@ -134,7 +131,7 @@ void check_for_bios_corruption(void)
 		}
 	}
 
-	WARN(corruption, KERN_ERR "Memory corruption detected in low memory\n");
+	WARN_ONCE(corruption, KERN_ERR "Memory corruption detected in low memory\n");
 }
 
 static void check_corruption(struct work_struct *dummy);
@@ -161,5 +158,4 @@ static int start_periodic_check_for_corruption(void)
 }
 
 module_init(start_periodic_check_for_corruption);
-#endif