test: fix build with GCC 11

GCC 11 complains that 'a' is uninitialized.

../dpdk/app/test/test_prefetch.c: In function 'test_prefetch':
../dpdk/app/test/test_prefetch.c:25:9:
error: 'a' may be used uninitialized [-Werror=maybe-uninitialized]
   25 |         rte_prefetch0(&a);
      |         ^~~~~~~~~~~~~~~~~

Fix by initializing 'a'.

Bugzilla ID: 714
Fixes: af75078fece3 ("first public release")
Cc: stable@dpdk.org
Reported-by: Ali Alnubani <alialnu@nvidia.com>
Signed-off-by: Kevin Traynor <ktraynor@redhat.com>
Tested-by: Ali Alnubani <alialnu@nvidia.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>

diff --git a/app/test/test_prefetch.c b/app/test/test_prefetch.c
index 5489885..7b4a8e4 100644 (file)
--- a/app/test/test_prefetch.c
+++ b/app/test/test_prefetch.c
@@ -20,7 +20,7 @@
 static int
 test_prefetch(void)
 {
-       int a;
+       int a = 0;
 
        rte_prefetch0(&a);
        rte_prefetch1(&a);