Commit 1dc9b70d authored by Harry Ciao's avatar Harry Ciao Committed by Linus Torvalds
Browse files

edac: add edac_device_alloc_index()



Add edac_device_alloc_index(), because for MAPLE platform 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.

[akpm@linux-foundation.org: cleanups]
Signed-off-by: default avatarHarry Ciao <qingtao.cao@windriver.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 2a9036af
......@@ -37,7 +37,6 @@
#define AMD8111_EDAC_MOD_STR "amd8111_edac"
#define PCI_DEVICE_ID_AMD_8111_PCI 0x7460
static int edac_dev_idx;
enum amd8111_edac_devs {
LPC_BRIDGE = 0,
......@@ -377,7 +376,7 @@ static int amd8111_dev_probe(struct pci_dev *dev,
* edac_device_ctl_info, but make use of existing
* one instead.
*/
dev_info->edac_idx = edac_dev_idx++;
dev_info->edac_idx = edac_device_alloc_index();
dev_info->edac_dev =
edac_device_alloc_ctl_info(0, dev_info->ctl_name, 1,
NULL, 0, 0,
......
......@@ -841,6 +841,7 @@ extern void edac_device_handle_ue(struct edac_device_ctl_info *edac_dev,
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
......
......@@ -490,6 +490,20 @@ void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev,
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)
{
static atomic_t device_indexes = ATOMIC_INIT(0);
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
......
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