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features and fixes for 4.11 rc1

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Merge tag 'for-linus-4.11-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fix and cleanup from Juergen Gross:
 "This contains one fix for MSIX handling under Xen and a trivial
  cleanup patch"

* tag 'for-linus-4.11-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xenbus: Remove duplicate inclusion of linux/init.h
  xen: do not re-use pirq number cached in pci device msi msg data
This commit is contained in:
Linus Torvalds 2017-03-09 12:23:30 -08:00
commit cb2113cb98
2 changed files with 7 additions and 17 deletions
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23
arch/x86/pci/xen.c
View file

@ -234,23 +234,14 @@ static int xen_hvm_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
return 1;
for_each_pci_msi_entry(msidesc, dev) {
__pci_read_msi_msg(msidesc, &msg);
pirq = MSI_ADDR_EXT_DEST_ID(msg.address_hi) |
((msg.address_lo >> MSI_ADDR_DEST_ID_SHIFT) & 0xff);
if (msg.data != XEN_PIRQ_MSI_DATA ||
xen_irq_from_pirq(pirq) < 0) {
pirq = xen_allocate_pirq_msi(dev, msidesc);
if (pirq < 0) {
irq = -ENODEV;
goto error;
}
xen_msi_compose_msg(dev, pirq, &msg);
__pci_write_msi_msg(msidesc, &msg);
dev_dbg(&dev->dev, "xen: msi bound to pirq=%d\n", pirq);
} else {
dev_dbg(&dev->dev,
"xen: msi already bound to pirq=%d\n", pirq);
pirq = xen_allocate_pirq_msi(dev, msidesc);
if (pirq < 0) {
irq = -ENODEV;
goto error;
}
xen_msi_compose_msg(dev, pirq, &msg);
__pci_write_msi_msg(msidesc, &msg);
dev_dbg(&dev->dev, "xen: msi bound to pirq=%d\n", pirq);
irq = xen_bind_pirq_msi_to_irq(dev, msidesc, pirq,
(type == PCI_CAP_ID_MSI) ? nvec : 1,
(type == PCI_CAP_ID_MSIX) ?

1
drivers/xen/xenbus/xenbus_dev_frontend.c
View file

@ -55,7 +55,6 @@
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/miscdevice.h>
#include <linux/init.h>
#include <xen/xenbus.h>
#include <xen/xen.h>