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-rw-r--r--drivers/hv/connection.c4
-rw-r--r--drivers/hv/ring_buffer.c2
-rw-r--r--drivers/hv/vmbus_drv.c3
3 files changed, 6 insertions, 3 deletions
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 9dc27e5d367a..da51b50787df 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -409,6 +409,10 @@ void vmbus_disconnect(void)
*/
struct vmbus_channel *relid2channel(u32 relid)
{
+ if (vmbus_connection.channels == NULL) {
+ pr_warn_once("relid2channel: relid=%d: No channels mapped!\n", relid);
+ return NULL;
+ }
if (WARN_ON(relid >= MAX_CHANNEL_RELIDS))
return NULL;
return READ_ONCE(vmbus_connection.channels[relid]);
diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c
index c6692fd5ab15..2111e97c3b63 100644
--- a/drivers/hv/ring_buffer.c
+++ b/drivers/hv/ring_buffer.c
@@ -211,7 +211,7 @@ int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info,
ring_info->ring_buffer = (struct hv_ring_buffer *)
vmap_pfn(pfns_wraparound, page_cnt * 2 - 1,
- PAGE_KERNEL);
+ pgprot_decrypted(PAGE_KERNEL));
kfree(pfns_wraparound);
if (!ring_info->ring_buffer)
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 229353f1e9c2..734fff86c8dc 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -684,7 +684,7 @@ static const struct attribute_group vmbus_dev_group = {
__ATTRIBUTE_GROUPS(vmbus_dev);
/* Set up the attribute for /sys/bus/vmbus/hibernation */
-static ssize_t hibernation_show(struct bus_type *bus, char *buf)
+static ssize_t hibernation_show(const struct bus_type *bus, char *buf)
{
return sprintf(buf, "%d\n", !!hv_is_hibernation_supported());
}
@@ -2147,7 +2147,6 @@ void vmbus_device_unregister(struct hv_device *device_obj)
* VMBUS is an acpi enumerated device. Get the information we
* need from DSDT.
*/
-#define VTPM_BASE_ADDRESS 0xfed40000
static acpi_status vmbus_walk_resources(struct acpi_resource *res, void *ctx)
{
resource_size_t start = 0;