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s390/pci: Adding bus resource

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The current PCI implementation do not provide a bus resource.
This leads to a notice being print at boot.
Let's do it more nicely and provide the bus resource.

Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Pierre Morel 2020-03-23 12:29:37 +01:00 committed by Vasily Gorbik
parent f606b3ef47
commit 65e450a9f9
2 changed files with 6 additions and 0 deletions
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1
arch/s390/include/asm/pci.h
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@ -107,6 +107,7 @@ struct zpci_bus {
struct zpci_dev *function[ZPCI_FUNCTIONS_PER_BUS];
struct list_head resources;
struct list_head bus_next;
struct resource bus_resource;
int pchid;
int domain_nr;
enum pci_bus_speed max_bus_speed;

5
arch/s390/pci/pci_bus.c
View file

@ -99,6 +99,11 @@ static struct zpci_bus *zpci_bus_alloc(int pchid)
kref_init(&zbus->kref);
INIT_LIST_HEAD(&zbus->resources);
zbus->bus_resource.start = 0;
zbus->bus_resource.end = ZPCI_BUS_NR;
zbus->bus_resource.flags = IORESOURCE_BUS;
pci_add_resource(&zbus->resources, &zbus->bus_resource);
return zbus;
}