page_reporting_order used to fall back to default
value (passed as parameter or MAX_PAGE_ORDER) if
the driver wishes to not provide it.

The way the driver used to do this was by passing
the order as zero.

Now that zero is a valid order that can be passed by
a driver to page reporting, we use -1 to signal
default value to be used.

Signed-off-by: Yuvraj Sakshith <[email protected]>
---
 drivers/hv/hv_balloon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index 2b4080e51..e33d6e3b2 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -1663,7 +1663,7 @@ static void enable_page_reporting(void)
         * We let the page_reporting_order parameter decide the order
         * in the page_reporting code
         */
-       dm_device.pr_dev_info.order = 0;
+       dm_device.pr_dev_info.order = -1;
        ret = page_reporting_register(&dm_device.pr_dev_info);
        if (ret < 0) {
                dm_device.pr_dev_info.report = NULL;
-- 
2.34.1


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