提交 0573fed9 编写于 作者: L Linus Torvalds

Merge tag 'for-linus-4.16a-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "Five minor fixes for Xen-specific drivers"

* tag 'for-linus-4.16a-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  pvcalls-front: 64-bit align flags
  x86/xen: add tty0 and hvc0 as preferred consoles for dom0
  xen-netfront: Fix hang on device removal
  xen/pirq: fix error path cleanup when binding MSIs
  xen/pvcalls: fix null pointer dereference on map->sock
......@@ -1376,8 +1376,6 @@ asmlinkage __visible void __init xen_start_kernel(void)
if (!xen_initial_domain()) {
add_preferred_console("xenboot", 0, NULL);
add_preferred_console("tty", 0, NULL);
add_preferred_console("hvc", 0, NULL);
if (pci_xen)
x86_init.pci.arch_init = pci_xen_init;
} else {
......@@ -1410,6 +1408,10 @@ asmlinkage __visible void __init xen_start_kernel(void)
xen_boot_params_init_edd();
}
add_preferred_console("tty", 0, NULL);
add_preferred_console("hvc", 0, NULL);
#ifdef CONFIG_PCI
/* PCI BIOS service won't work from a PV guest. */
pci_probe &= ~PCI_PROBE_BIOS;
......
......@@ -2005,7 +2005,10 @@ static void netback_changed(struct xenbus_device *dev,
case XenbusStateInitialised:
case XenbusStateReconfiguring:
case XenbusStateReconfigured:
break;
case XenbusStateUnknown:
wake_up_all(&module_unload_q);
break;
case XenbusStateInitWait:
......@@ -2136,7 +2139,9 @@ static int xennet_remove(struct xenbus_device *dev)
xenbus_switch_state(dev, XenbusStateClosing);
wait_event(module_unload_q,
xenbus_read_driver_state(dev->otherend) ==
XenbusStateClosing);
XenbusStateClosing ||
xenbus_read_driver_state(dev->otherend) ==
XenbusStateUnknown);
xenbus_switch_state(dev, XenbusStateClosed);
wait_event(module_unload_q,
......
......@@ -755,8 +755,8 @@ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc,
mutex_unlock(&irq_mapping_update_lock);
return irq;
error_irq:
for (; i >= 0; i--)
__unbind_from_irq(irq + i);
while (nvec--)
__unbind_from_irq(irq + nvec);
mutex_unlock(&irq_mapping_update_lock);
return ret;
}
......
......@@ -416,7 +416,7 @@ static int pvcalls_back_connect(struct xenbus_device *dev,
sock);
if (!map) {
ret = -EFAULT;
sock_release(map->sock);
sock_release(sock);
}
out:
......
......@@ -73,20 +73,25 @@ struct sock_mapping {
wait_queue_head_t inflight_conn_req;
} active;
struct {
/* Socket status */
/*
* Socket status, needs to be 64-bit aligned due to the
* test_and_* functions which have this requirement on arm64.
*/
#define PVCALLS_STATUS_UNINITALIZED 0
#define PVCALLS_STATUS_BIND 1
#define PVCALLS_STATUS_LISTEN 2
uint8_t status;
uint8_t status __attribute__((aligned(8)));
/*
* Internal state-machine flags.
* Only one accept operation can be inflight for a socket.
* Only one poll operation can be inflight for a given socket.
* flags needs to be 64-bit aligned due to the test_and_*
* functions which have this requirement on arm64.
*/
#define PVCALLS_FLAG_ACCEPT_INFLIGHT 0
#define PVCALLS_FLAG_POLL_INFLIGHT 1
#define PVCALLS_FLAG_POLL_RET 2
uint8_t flags;
uint8_t flags __attribute__((aligned(8)));
uint32_t inflight_req_id;
struct sock_mapping *accept_map;
wait_queue_head_t inflight_accept_req;
......
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