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edac: Add edac_pci_alloc_index()

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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: Harry Ciao <[email protected]>
Cc: Doug Thompson <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Harry Ciao 2009-04-02 16:58:47 -07:00 • committed by Linus Torvalds
commit 8641a3845d
2 changed files with 15 additions and 0 deletions
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1
drivers/edac/edac_core.h
View file

@ -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);

14
drivers/edac/edac_pci.c
View file

@ -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