[PATCH v2] tools/tests: Make E2BIG non-fatal to xenstore unit test

[Kevin Stefanov <kevin.stefanov@xxxxxxxxxx>]

Xenstore's unit test fails on read and write of big numbers if
quota-maxsize is set to a lower number than those test cases use.

Output a special warning instead of a failure message in such cases
and make the error non-fatal to the unit test.

Signed-off-by: Kevin Stefanov <kevin.stefanov@xxxxxxxxxx>
---
CC: Ian Jackson <iwj@xxxxxxxxxxxxxx>
CC: Wei Liu <wl@xxxxxxx>
CC: Juergen Gross <jgross@xxxxxxxx>
CC: Julien Grall <julien@xxxxxxx>
CC: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

v2: Adhere to coding style, use E2BIG instead of 7, set ret to 0
---
 tools/tests/xenstore/test-xenstore.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/tools/tests/xenstore/test-xenstore.c 
b/tools/tests/xenstore/test-xenstore.c
index d3574b3fa2..f8423e568e 100644
--- a/tools/tests/xenstore/test-xenstore.c
+++ b/tools/tests/xenstore/test-xenstore.c
@@ -110,8 +110,17 @@ static int call_test(struct test *tst, int iters, bool 
no_clock)
             break;
     }
 
+    /* Make E2BIG non-fatal to the test */
     if ( ret )
-        printf("%-10s: failed (ret = %d, stage %s)\n", tst->name, ret, stage);
+    {
+       if ( ret == E2BIG )
+        {
+            printf("%-10s: Not run - argument list too long\n", tst->name);
+            ret = 0;
+        }
+        else      
+            printf("%-10s: failed (ret = %d, stage %s)\n", tst->name, ret, 
stage);
+    }
     else if ( !no_clock )
     {
         printf("%-10s:", tst->name);
-- 
2.25.1