devlink: print maximum number of snapshots if available

Recently the kernel gained ability to report the maximum number of
snapshots a region can have. Print this value out if it was reported.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David Ahern <dsahern@kernel.org>

diff --git a/devlink/devlink.c b/devlink/devlink.c
index 2f2142ed385666cde1d280fd0c792a35917853a1..07c4e08ab9d8b121ec2d4feeb69c7404f50f17a4 100644 (file)
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -7845,6 +7845,10 @@ static void pr_out_region(struct dl *dl, struct nlattr **tb)
        if (tb[DEVLINK_ATTR_REGION_SNAPSHOT_ID])
                pr_out_snapshot(dl, tb);
 
+       if (tb[DEVLINK_ATTR_REGION_MAX_SNAPSHOTS])
+               pr_out_u64(dl, "max",
+                          mnl_attr_get_u32(tb[DEVLINK_ATTR_REGION_MAX_SNAPSHOTS]));
+
        pr_out_region_handle_end(dl);
 }