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xen: events: drop XEN_ALLOC_IRQ flag to xen_allocate_pirq_msi 

All callers pass this flag so it is pointless.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Ian Campbell 2011-02-18 16:43:28 +00:00 committed by Konrad Rzeszutek Wilk
parent ae1635b05f
commit bb5d079aef
3 changed files with 9 additions and 14 deletions
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6
arch/x86/pci/xen.c
View File

@ -101,7 +101,7 @@ static int xen_hvm_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
((msg.address_lo >> MSI_ADDR_DEST_ID_SHIFT) & 0xff);
if (xen_irq_from_pirq(pirq) >= 0 && msg.data == XEN_PIRQ_MSI_DATA) {
xen_allocate_pirq_msi((type == PCI_CAP_ID_MSIX) ?
"msi-x" : "msi", &irq, &pirq, XEN_ALLOC_IRQ);
"msi-x" : "msi", &irq, &pirq, 0);
if (irq < 0)
goto error;
ret = set_irq_msi(irq, msidesc);
@ -112,7 +112,7 @@ static int xen_hvm_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
return 0;
}
xen_allocate_pirq_msi((type == PCI_CAP_ID_MSIX) ?
"msi-x" : "msi", &irq, &pirq, (XEN_ALLOC_IRQ | XEN_ALLOC_PIRQ));
"msi-x" : "msi", &irq, &pirq, 1);
if (irq < 0 || pirq < 0)
goto error;
printk(KERN_DEBUG "xen: msi --> irq=%d, pirq=%d\n", irq, pirq);
@ -160,7 +160,7 @@ static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
xen_allocate_pirq_msi(
(type == PCI_CAP_ID_MSIX) ?
"pcifront-msi-x" : "pcifront-msi",
&irq, &v[i], XEN_ALLOC_IRQ);
&irq, &v[i], 0);
if (irq < 0) {
ret = -1;
goto free;

12
drivers/xen/events.c
View File

@ -664,17 +664,15 @@ static int find_unbound_pirq(int type)
return -1;
}
void xen_allocate_pirq_msi(char *name, int *irq, int *pirq, int alloc)
void xen_allocate_pirq_msi(char *name, int *irq, int *pirq, int alloc_pirq)
{
spin_lock(&irq_mapping_update_lock);
if (alloc & XEN_ALLOC_IRQ) {
*irq = xen_allocate_irq_dynamic();
if (*irq == -1)
goto out;
}
*irq = xen_allocate_irq_dynamic();
if (*irq == -1)
goto out;
if (alloc & XEN_ALLOC_PIRQ) {
if (alloc_pirq) {
*pirq = find_unbound_pirq(MAP_PIRQ_TYPE_MSI);
if (*pirq == -1) {
xen_free_irq(*irq);

5
include/xen/events.h
View File

@ -75,10 +75,7 @@ int xen_allocate_pirq(unsigned gsi, int shareable, char *name);
int xen_map_pirq_gsi(unsigned pirq, unsigned gsi, int shareable, char *name);
#ifdef CONFIG_PCI_MSI
/* Allocate an irq and a pirq to be used with MSIs. */
#define XEN_ALLOC_PIRQ (1 << 0)
#define XEN_ALLOC_IRQ (1 << 1)
void xen_allocate_pirq_msi(char *name, int *irq, int *pirq, int alloc_mask);
void xen_allocate_pirq_msi(char *name, int *irq, int *pirq, int alloc_pirq);
int xen_create_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, int type);
#endif