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PCI: endpoint: Add an API to get matching "pci_epf_device_id"

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Add an API to get "pci_epf_device_id" matching the EPF name. This can be
used by the EPF driver to get the driver data corresponding to the EPF
device name.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
[bhelgaas: folded in "while" loop termination fix from Colin Ian King
<colin.king@canonical.com>]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Kishon Vijay Abraham I 2017-08-18 20:27:54 +05:30 committed by Bjorn Helgaas
parent 64c1a02aec
commit f01f969e25
2 changed files with 18 additions and 0 deletions
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16
drivers/pci/endpoint/pci-epf-core.c
View File

@ -267,6 +267,22 @@ err_ret:
}
EXPORT_SYMBOL_GPL(pci_epf_create);
const struct pci_epf_device_id *
pci_epf_match_device(const struct pci_epf_device_id *id, struct pci_epf *epf)
{
if (!id || !epf)
return NULL;
while (*id->name) {
if (strcmp(epf->name, id->name) == 0)
return id;
id++;
}
return NULL;
}
EXPORT_SYMBOL_GPL(pci_epf_match_device);
static void pci_epf_dev_release(struct device *dev)
{
struct pci_epf *epf = to_pci_epf(dev);

2
include/linux/pci-epf.h
View File

@ -149,6 +149,8 @@ static inline void *epf_get_drvdata(struct pci_epf *epf)
return dev_get_drvdata(&epf->dev);
}
const struct pci_epf_device_id *
pci_epf_match_device(const struct pci_epf_device_id *id, struct pci_epf *epf);
struct pci_epf *pci_epf_create(const char *name);
void pci_epf_destroy(struct pci_epf *epf);
int __pci_epf_register_driver(struct pci_epf_driver *driver,