[PATCH v1 2/3] xen-livepatch: Print the header _after_ the first livepatch hypercall

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

That way we can print out the header if we are sure the
hypervisor has been compiled with Xen Livepatching.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 tools/misc/xen-livepatch.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/misc/xen-livepatch.c b/tools/misc/xen-livepatch.c
index 7512a98..2de04c0 100644
--- a/tools/misc/xen-livepatch.c
+++ b/tools/misc/xen-livepatch.c
@@ -91,8 +91,6 @@ static int list_func(int argc, char *argv[])
         return rc;
     }
 
-    fprintf(stdout," ID                                     | status\n"
-                   "----------------------------------------+------------\n");
     do {
         done = 0;
         /* The memset is done to catch errors. */
@@ -106,6 +104,10 @@ static int list_func(int argc, char *argv[])
                     idx, left, errno, strerror(errno));
             break;
         }
+        if ( !idx )
+            fprintf(stdout," ID                                     | status\n"
+                           "----------------------------------------+------------\n");
+
         for ( i = 0; i < done; i++ )
         {
             unsigned int j;
-- 
2.4.11


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
https://lists.xen.org/xen-devel