From: Harry Ciao <[email protected]>
Add edac_device_alloc_index(), because for some platforms there may
exist several EDAC driver modules that could make use of
edac_device_ctl_info structure at the same time. The index allocation
for these structures should be taken care of by EDAC core.
Signed-off-by: Harry Ciao <[email protected]>
Signed-off-by: Doug Thompson <[email protected]>
---
edac_core.h | 1 +
edac_device.c | 13 +++++++++++++
2 files changed, 14 insertions(+)
Index: linux-2.6.29/drivers/edac/edac_core.h
===================================================================
--- linux-2.6.29.orig/drivers/edac/edac_core.h
+++ linux-2.6.29/drivers/edac/edac_core.h
@@ -840,6 +840,7 @@ extern void edac_device_handle_ue(struct
int inst_nr, int block_nr, const char *msg);
extern void edac_device_handle_ce(struct edac_device_ctl_info *edac_dev,
int inst_nr, int block_nr, const char *msg);
+extern int edac_device_alloc_index(void);
/*
* edac_pci APIs
Index: linux-2.6.29/drivers/edac/edac_device.c
===================================================================
--- linux-2.6.29.orig/drivers/edac/edac_device.c
+++ linux-2.6.29/drivers/edac/edac_device.c
@@ -37,6 +37,7 @@
*/
static DEFINE_MUTEX(device_ctls_mutex);
static LIST_HEAD(edac_device_list);
+static atomic_t device_indexes = ATOMIC_INIT(0);
#ifdef CONFIG_EDAC_DEBUG
static void edac_device_dump_device(struct edac_device_ctl_info *edac_dev)
@@ -491,6 +492,18 @@ void edac_device_reset_delay_period(stru
mutex_unlock(&device_ctls_mutex);
}
+/*
+ * edac_device_alloc_index: Allocate a unique device index number
+ *
+ * Return:
+ * allocated index number
+ */
+int edac_device_alloc_index(void)
+{
+ return atomic_inc_return(&device_indexes) - 1;
+}
+EXPORT_SYMBOL_GPL(edac_device_alloc_index);
+
/**
* edac_device_add_device: Insert the 'edac_dev' structure into the
* edac_device global list and create sysfs entries associated with