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Commit bb5d079a authored by Ian Campbell's avatar Ian Campbell Committed by Konrad Rzeszutek Wilk
Browse files

xen: events: drop XEN_ALLOC_IRQ flag to xen_allocate_pirq_msi 



All callers pass this flag so it is pointless.

Signed-off-by: default avatarIan Campbell <ian.campbell@citrix.com>
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent ae1635b0

arch/x86/pci/xen.c

+3 −3
Original line number Diff line number Diff line
@@ -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;

drivers/xen/events.c

+5 −7
Original line number Diff line number Diff line
@@ -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;

	}



	if (alloc & XEN_ALLOC_PIRQ) {

	if (alloc_pirq) {

		*pirq = find_unbound_pirq(MAP_PIRQ_TYPE_MSI);

		if (*pirq == -1) {

			xen_free_irq(*irq);

include/xen/events.h

+1 −4
Original line number Diff line number Diff line
@@ -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