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xen: fixes for 4.19-rc2

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Merge tag 'for-linus-4.19b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - minor cleanup avoiding a warning when building with new gcc

 - a patch to add a new sysfs node for Xen frontend/backend drivers to
   make it easier to obtain the state of a pv device

 - two fixes for 32-bit pv-guests to avoid intermediate L1TF vulnerable
   PTEs

* tag 'for-linus-4.19b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/xen: remove redundant variable save_pud
  xen: export device state to sysfs
  x86/pae: use 64 bit atomic xchg function in native_ptep_get_and_clear
  x86/xen: don't write ptes directly in 32-bit PV guests
This commit is contained in:
Linus Torvalds 2018-08-31 08:45:16 -07:00
commit 4290d5b9ca
4 changed files with 24 additions and 10 deletions
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9
drivers/xen/xenbus/xenbus_probe.c
View file

@ -402,10 +402,19 @@ static ssize_t modalias_show(struct device *dev,
}
static DEVICE_ATTR_RO(modalias);
static ssize_t state_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "%s\n",
xenbus_strstate(to_xenbus_device(dev)->state));
}
static DEVICE_ATTR_RO(state);
static struct attribute *xenbus_dev_attrs[] = {
&dev_attr_nodename.attr,
&dev_attr_devtype.attr,
&dev_attr_modalias.attr,
&dev_attr_state.attr,
NULL,
};