x86: mce: Move per bank data in a single datastructure

This addresses one of the leftover review comments.

Move the per bank data into a single structure. This avoids
several separate variables and also separate allocation of sysfs objects.

I didn't move the CMCI ownership information so far because
that would have needed some non trivial changes in the algorithms.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

arch/x86/kernel/cpu/mcheck/mce-internal.h

@@ -1,3 +1,4 @@
+#include <linux/sysdev.h>
 #include <asm/mce.h>
 
 enum severity_level {
@@ -10,6 +11,19 @@ enum severity_level {
 	MCE_PANIC_SEVERITY,
 };
 
+#define ATTR_LEN		16
+
+/* One object for each MCE bank, shared by all CPUs */
+struct mce_bank {
+	u64			ctl;			/* subevents to enable */
+	unsigned char init;				/* initialise bank? */
+	struct sysdev_attribute attr;			/* sysdev attribute */
+	char			attrname[ATTR_LEN];	/* attribute name */
+};
+
 int mce_severity(struct mce *a, int tolerant, char **msg);
 
 extern int mce_ser;
+
+extern struct mce_bank *mce_banks;
+