drivers/edac: add edac_device class

This patch adds the new 'class' of object to be managed, named: 'edac_device'.

As a peer of the 'edac_mc' class of object, it provides a non-memory centric
view of an ERROR DETECTING device in hardware. It provides a sysfs interface
and an abstraction for varioius EDAC type devices.

Multiple 'instances' within the class are possible, with each 'instance'
able to have multiple 'blocks', and each 'block' having 'attributes'.

At the 'block' level there are the 'ce_count' and 'ue_count' fields
which the device driver can update and/or call edac_device_handle_XX()
functions. At each higher level are additional 'total' count fields,
which are a summation of counts below that level.

This 'edac_device' has been used to capture and present ECC errors
which are found in a a L1 and L2 system on a per CORE/CPU basis.

Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 3be5b7fe79cd..1f22d8cad6f7 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -88,7 +88,7 @@ static void edac_mc_dump_mci(struct mem_ctl_info *mci)
  * If 'size' is a constant, the compiler will optimize this whole function
  * down to either a no-op or the addition of a constant to the value of 'ptr'.
  */
-static inline char * align_ptr(void *ptr, unsigned size)
+char * edac_align_ptr(void *ptr, unsigned size)
 {
         unsigned align, r;
 
@@ -147,10 +147,10 @@ struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt, unsigned nr_csrows,
          * hardcode everything into a single struct.
          */
         mci = (struct mem_ctl_info *) 0;
-        csi = (struct csrow_info *)align_ptr(&mci[1], sizeof(*csi));
+        csi = (struct csrow_info *)edac_align_ptr(&mci[1], sizeof(*csi));
         chi = (struct channel_info *)
-                        align_ptr(&csi[nr_csrows], sizeof(*chi));
-        pvt = align_ptr(&chi[nr_chans * nr_csrows], sz_pvt);
+                        edac_align_ptr(&csi[nr_csrows], sizeof(*chi));
+        pvt = edac_align_ptr(&chi[nr_chans * nr_csrows], sz_pvt);
         size = ((unsigned long) pvt) + sz_pvt;
 
         if ((mci = kmalloc(size, GFP_KERNEL)) == NULL)