diff options
Diffstat (limited to 'drivers/xen/pcpu.c')
| -rw-r--r-- | drivers/xen/pcpu.c | 41 |
1 files changed, 3 insertions, 38 deletions
diff --git a/drivers/xen/pcpu.c b/drivers/xen/pcpu.c index cdc6daa7a9f6..47aa3a1ccaf5 100644 --- a/drivers/xen/pcpu.c +++ b/drivers/xen/pcpu.c @@ -92,7 +92,7 @@ static int xen_pcpu_up(uint32_t cpu_id) return HYPERVISOR_platform_op(&op); } -static ssize_t show_online(struct device *dev, +static ssize_t online_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -101,7 +101,7 @@ static ssize_t show_online(struct device *dev, return sprintf(buf, "%u\n", !!(cpu->flags & XEN_PCPU_FLAGS_ONLINE)); } -static ssize_t __ref store_online(struct device *dev, +static ssize_t __ref online_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { @@ -130,7 +130,7 @@ static ssize_t __ref store_online(struct device *dev, ret = count; return ret; } -static DEVICE_ATTR(online, S_IRUGO | S_IWUSR, show_online, store_online); +static DEVICE_ATTR_RW(online); static struct attribute *pcpu_dev_attrs[] = { &dev_attr_online.attr, @@ -345,41 +345,6 @@ static irqreturn_t xen_pcpu_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -/* Sync with Xen hypervisor after cpu hotadded */ -void xen_pcpu_hotplug_sync(void) -{ - schedule_work(&xen_pcpu_work); -} -EXPORT_SYMBOL_GPL(xen_pcpu_hotplug_sync); - -/* - * For hypervisor presented cpu, return logic cpu id; - * For hypervisor non-presented cpu, return -ENODEV. - */ -int xen_pcpu_id(uint32_t acpi_id) -{ - int cpu_id = 0, max_id = 0; - struct xen_platform_op op; - - op.cmd = XENPF_get_cpuinfo; - while (cpu_id <= max_id) { - op.u.pcpu_info.xen_cpuid = cpu_id; - if (HYPERVISOR_platform_op(&op)) { - cpu_id++; - continue; - } - - if (acpi_id == op.u.pcpu_info.acpi_id) - return cpu_id; - if (op.u.pcpu_info.max_present > max_id) - max_id = op.u.pcpu_info.max_present; - cpu_id++; - } - - return -ENODEV; -} -EXPORT_SYMBOL_GPL(xen_pcpu_id); - static int __init xen_pcpu_init(void) { int irq, ret; |