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Merge branch 'stable/platform-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

* 'stable/platform-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen-platform: Fix compile errors if CONFIG_PCI is not enabled.
  xen: rename platform-pci module to xen-platform-pci.
  xen-platform: use PCI interfaces to request IO and MEM resources.
Linus Torvalds 14 anni fa
parent
commit
2c0076d8c7
3 ha cambiato i file con 10 aggiunte e 16 eliminazioni
  1. 1 1
      drivers/xen/Kconfig
  2. 2 1
      drivers/xen/Makefile
  3. 7 14
      drivers/xen/platform-pci.c

+ 1 - 1
drivers/xen/Kconfig

@@ -75,7 +75,7 @@ config XEN_XENBUS_FRONTEND
 
 
 config XEN_PLATFORM_PCI
 config XEN_PLATFORM_PCI
 	tristate "xen platform pci device driver"
 	tristate "xen platform pci device driver"
-	depends on XEN_PVHVM
+	depends on XEN_PVHVM && PCI
 	default m
 	default m
 	help
 	help
 	  Driver for the Xen PCI Platform device: it is responsible for
 	  Driver for the Xen PCI Platform device: it is responsible for

+ 2 - 1
drivers/xen/Makefile

@@ -11,9 +11,10 @@ obj-$(CONFIG_XEN_BALLOON)	+= balloon.o
 obj-$(CONFIG_XEN_DEV_EVTCHN)	+= xen-evtchn.o
 obj-$(CONFIG_XEN_DEV_EVTCHN)	+= xen-evtchn.o
 obj-$(CONFIG_XENFS)		+= xenfs/
 obj-$(CONFIG_XENFS)		+= xenfs/
 obj-$(CONFIG_XEN_SYS_HYPERVISOR)	+= sys-hypervisor.o
 obj-$(CONFIG_XEN_SYS_HYPERVISOR)	+= sys-hypervisor.o
-obj-$(CONFIG_XEN_PLATFORM_PCI)	+= platform-pci.o
+obj-$(CONFIG_XEN_PLATFORM_PCI)	+= xen-platform-pci.o
 obj-$(CONFIG_SWIOTLB_XEN)	+= swiotlb-xen.o
 obj-$(CONFIG_SWIOTLB_XEN)	+= swiotlb-xen.o
 obj-$(CONFIG_XEN_DOM0)		+= pci.o
 obj-$(CONFIG_XEN_DOM0)		+= pci.o
 
 
 xen-evtchn-y			:= evtchn.o
 xen-evtchn-y			:= evtchn.o
 
 
+xen-platform-pci-y		:= platform-pci.o

+ 7 - 14
drivers/xen/platform-pci.c

@@ -105,7 +105,7 @@ static int __devinit platform_pci_init(struct pci_dev *pdev,
 				       const struct pci_device_id *ent)
 				       const struct pci_device_id *ent)
 {
 {
 	int i, ret;
 	int i, ret;
-	long ioaddr, iolen;
+	long ioaddr;
 	long mmio_addr, mmio_len;
 	long mmio_addr, mmio_len;
 	unsigned int max_nr_gframes;
 	unsigned int max_nr_gframes;
 
 
@@ -114,7 +114,6 @@ static int __devinit platform_pci_init(struct pci_dev *pdev,
 		return i;
 		return i;
 
 
 	ioaddr = pci_resource_start(pdev, 0);
 	ioaddr = pci_resource_start(pdev, 0);
-	iolen = pci_resource_len(pdev, 0);
 
 
 	mmio_addr = pci_resource_start(pdev, 1);
 	mmio_addr = pci_resource_start(pdev, 1);
 	mmio_len = pci_resource_len(pdev, 1);
 	mmio_len = pci_resource_len(pdev, 1);
@@ -125,19 +124,13 @@ static int __devinit platform_pci_init(struct pci_dev *pdev,
 		goto pci_out;
 		goto pci_out;
 	}
 	}
 
 
-	if (request_mem_region(mmio_addr, mmio_len, DRV_NAME) == NULL) {
-		dev_err(&pdev->dev, "MEM I/O resource 0x%lx @ 0x%lx busy\n",
-		       mmio_addr, mmio_len);
-		ret = -EBUSY;
+	ret = pci_request_region(pdev, 1, DRV_NAME);
+	if (ret < 0)
 		goto pci_out;
 		goto pci_out;
-	}
 
 
-	if (request_region(ioaddr, iolen, DRV_NAME) == NULL) {
-		dev_err(&pdev->dev, "I/O resource 0x%lx @ 0x%lx busy\n",
-		       iolen, ioaddr);
-		ret = -EBUSY;
+	ret = pci_request_region(pdev, 0, DRV_NAME);
+	if (ret < 0)
 		goto mem_out;
 		goto mem_out;
-	}
 
 
 	platform_mmio = mmio_addr;
 	platform_mmio = mmio_addr;
 	platform_mmiolen = mmio_len;
 	platform_mmiolen = mmio_len;
@@ -169,9 +162,9 @@ static int __devinit platform_pci_init(struct pci_dev *pdev,
 	return 0;
 	return 0;
 
 
 out:
 out:
-	release_region(ioaddr, iolen);
+	pci_release_region(pdev, 0);
 mem_out:
 mem_out:
-	release_mem_region(mmio_addr, mmio_len);
+	pci_release_region(pdev, 1);
 pci_out:
 pci_out:
 	pci_disable_device(pdev);
 	pci_disable_device(pdev);
 	return ret;
 	return ret;