[PATCH v3 1/2] PCI: return resource_entry in pci_add_resource helpers

From: Jeffy Chen
Date: Thu Mar 23 2017 - 21:51:52 EST


Signed-off-by: Jeffy Chen <jeffy.chen@xxxxxxxxxxxxxx>
---

Changes in v3: None
Changes in v2: None

drivers/pci/bus.c | 13 ++++++++-----
include/linux/pci.h | 8 +++++---
2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index bc56cf1..36a1861 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -17,25 +17,28 @@

#include "pci.h"

-void pci_add_resource_offset(struct list_head *resources, struct resource *res,
- resource_size_t offset)
+struct resource_entry *pci_add_resource_offset(struct list_head *resources,
+ struct resource *res,
+ resource_size_t offset)
{
struct resource_entry *entry;

entry = resource_list_create_entry(res, 0);
if (!entry) {
printk(KERN_ERR "PCI: can't add host bridge window %pR\n", res);
- return;
+ return NULL;
}

entry->offset = offset;
resource_list_add_tail(entry, resources);
+ return entry;
}
EXPORT_SYMBOL(pci_add_resource_offset);

-void pci_add_resource(struct list_head *resources, struct resource *res)
+struct resource_entry *pci_add_resource(struct list_head *resources,
+ struct resource *res)
{
- pci_add_resource_offset(resources, res, 0);
+ return pci_add_resource_offset(resources, res, 0);
}
EXPORT_SYMBOL(pci_add_resource);

diff --git a/include/linux/pci.h b/include/linux/pci.h
index eb3da1a..ab16abe 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1167,9 +1167,11 @@ void pci_release_selected_regions(struct pci_dev *, int);
/* drivers/pci/bus.c */
struct pci_bus *pci_bus_get(struct pci_bus *bus);
void pci_bus_put(struct pci_bus *bus);
-void pci_add_resource(struct list_head *resources, struct resource *res);
-void pci_add_resource_offset(struct list_head *resources, struct resource *res,
- resource_size_t offset);
+struct resource_entry *pci_add_resource(struct list_head *resources,
+ struct resource *res);
+struct resource_entry *pci_add_resource_offset(struct list_head *resources,
+ struct resource *res,
+ resource_size_t offset);
void pci_free_resource_list(struct list_head *resources);
void pci_bus_add_resource(struct pci_bus *bus, struct resource *res,
unsigned int flags);
--
2.1.4