[PATCH v2] telemetry: use portable syntax to initialize array

[Tyler Retzlaff]

Use of ranges in designated initialization are a non-standard gcc
extension. Use loops to initialize permitted characters on first use.

Signed-off-by: Tyler Retzlaff <roret...@linux.microsoft.com>
---
 lib/telemetry/telemetry_data.c | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/lib/telemetry/telemetry_data.c b/lib/telemetry/telemetry_data.c
index 2bac2de..d845186 100644
--- a/lib/telemetry/telemetry_data.c
+++ b/lib/telemetry/telemetry_data.c
@@ -152,13 +152,21 @@
 static bool
 valid_name(const char *name)
 {
-       char allowed[128] = {
-                       ['0' ... '9'] = 1,
-                       ['A' ... 'Z'] = 1,
-                       ['a' ... 'z'] = 1,
-                       ['_'] = 1,
-                       ['/'] = 1,
-       };
+       static bool initialized;
+       static char allowed[128];
+
+       if (!initialized) {
+               int index;
+               for (index = '0'; index <= '9'; index++)
+                       allowed[index] = 1;
+               for (index = 'A'; index <= 'Z'; index++)
+                       allowed[index] = 1;
+               for (index = 'a'; index <= 'Z'; index++)
+                       allowed[index] = 1;
+               allowed[(int)'_'] = allowed[(int)'/'] = 1;
+               initialized = true;
+       }
+
        while (*name != '\0') {
                if ((size_t)*name >= RTE_DIM(allowed) || allowed[(int)*name] == 
0)
                        return false;
-- 
1.8.3.1