amd64_edac: add ECC reporting initializers

Borislav:
- convert to the new {rd|wr}msr_on_cpus interfaces.
- convert pvt->old_mcgctl to a bitmask thus saving some bytes
- fix/cleanup comments
- fix function return value patterns
- add a proper bugfix found by Doug to amd64_check_ecc_enabled where we
  missed checking for the ECC enabled bit in NB CFG.
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 6f5d5d62cefc..e7aa760614ce 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -70,6 +70,7 @@
 #include <linux/slab.h>
 #include <linux/mmzone.h>
 #include <linux/edac.h>
+#include <asm/msr.h>
 #include "edac_core.h"
 
 #define amd64_printk(level, fmt, arg...) \
@@ -549,7 +550,7 @@ struct amd64_pvt {
 	/* Save old hw registers' values before we modified them */
 	u32 nbctl_mcgctl_saved;		/* When true, following 2 are valid */
 	u32 old_nbctl;
-	u32 *old_mcgctl;		/* per core on this node */
+	unsigned long old_mcgctl;	/* per core on this node */
 
 	/* MC Type Index value: socket F vs Family 10h */
 	u32 mc_type_index;