Commit 8641a384 authored by Harry Ciao's avatar Harry Ciao Committed by Linus Torvalds
Browse files

edac: Add edac_pci_alloc_index() 



Add edac_pci_alloc_index(), because for MAPLE platform there may exist
several EDAC driver modules that could make use of edac_pci_ctl_info
structure at the same time.  The index allocation for these structures
should be taken care of by EDAC core.

Signed-off-by: default avatarHarry Ciao <qingtao.cao@windriver.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 697dab64

drivers/edac/edac_core.h

+1 −0
Original line number Diff line number Diff line
@@ -844,6 +844,7 @@ extern void edac_pci_free_ctl_info(struct edac_pci_ctl_info *pci); 
extern void edac_pci_reset_delay_period(struct edac_pci_ctl_info *pci,

				unsigned long value);



extern int edac_pci_alloc_index(void);

extern int edac_pci_add_device(struct edac_pci_ctl_info *pci, int edac_idx);

extern struct edac_pci_ctl_info *edac_pci_del_device(struct device *dev);

drivers/edac/edac_pci.c

+14 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 


static DEFINE_MUTEX(edac_pci_ctls_mutex);

static LIST_HEAD(edac_pci_list);

static atomic_t pci_indexes = ATOMIC_INIT(0);



/*

 * edac_pci_alloc_ctl_info
@@ -317,6 +318,19 @@ void edac_pci_reset_delay_period(struct edac_pci_ctl_info *pci, 
}

EXPORT_SYMBOL_GPL(edac_pci_reset_delay_period);



/*

 * edac_pci_alloc_index: Allocate a unique PCI index number

 *

 * Return:

 *      allocated index number

 *

 */

int edac_pci_alloc_index(void)

{

	return atomic_inc_return(&pci_indexes) - 1;

}

EXPORT_SYMBOL_GPL(edac_pci_alloc_index);



/*

 * edac_pci_add_device: Insert the 'edac_dev' structure into the

 * edac_pci global list and create sysfs entries associated with

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