Commit 5da0831c authored by Douglas Thompson's avatar Douglas Thompson Committed by Linus Torvalds
Browse files

drivers/edac: add edac_mc_find API 



This simple patch adds an important CORE API for EDAC that EDAC drivers can
use to find their edac_mc control structure by passing a mem_ctl_info
'instance' value

Needed for subsequent patches

Signed-off-by: default avatarDouglas Thompson <dougthompson@xmission.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 8ca47e00

drivers/edac/edac_mc.c

+28 −0
Original line number Diff line number Diff line
@@ -1456,6 +1456,34 @@ static void del_mc_from_global_list(struct mem_ctl_info *mci) 
	wait_for_completion(&mci->complete);

}



/**

 * edac_mc_find: Search for a mem_ctl_info structure whose index is 'idx'.

 *

 * If found, return a pointer to the structure.

 * Else return NULL.

 *

 * Caller must hold mem_ctls_mutex.

 */

struct mem_ctl_info * edac_mc_find(int idx)

{

	struct list_head *item;

	struct mem_ctl_info *mci;



	list_for_each(item, &mc_devices) {

		mci = list_entry(item, struct mem_ctl_info, link);



		if (mci->mc_idx >= idx) {

			if (mci->mc_idx == idx)

				return mci;



			break;

		}

	}



	return NULL;

}

EXPORT_SYMBOL(edac_mc_find);



/**

 * edac_mc_add_mc: Insert the 'mci' structure into the mci global list and

 *                 create sysfs entries associated with mci structure

drivers/edac/edac_mc.h

+1 −0
Original line number Diff line number Diff line
@@ -430,6 +430,7 @@ void edac_mc_dump_mci(struct mem_ctl_info *mci); 
void edac_mc_dump_csrow(struct csrow_info *csrow);

#endif  /* CONFIG_EDAC_DEBUG */



extern struct mem_ctl_info * edac_mc_find(int idx);

extern int edac_mc_add_mc(struct mem_ctl_info *mci,int mc_idx);

extern struct mem_ctl_info * edac_mc_del_mc(struct device *dev);

extern int edac_mc_find_csrow_by_page(struct mem_ctl_info *mci,

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