[PATCH 07/11] app/testpmd: fix build with clang 15

[David Marchand]

This variable is used to create some artificial load.

Fixes: 3c156061b938 ("app/testpmd: add noisy neighbour forwarding mode")
Cc: sta...@dpdk.org

Signed-off-by: David Marchand <david.march...@redhat.com>
---
 app/test-pmd/noisy_vnf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/test-pmd/noisy_vnf.c b/app/test-pmd/noisy_vnf.c
index b17a1febd3..c65ec6f06a 100644
--- a/app/test-pmd/noisy_vnf.c
+++ b/app/test-pmd/noisy_vnf.c
@@ -57,8 +57,8 @@ do_write(char *vnf_mem)
 static inline void
 do_read(char *vnf_mem)
 {
+       uint64_t r __rte_unused;
        uint64_t i = rte_rand();
-       uint64_t r;
 
        r = vnf_mem[i % ((noisy_lkup_mem_sz * 1024 * 1024) /
                        RTE_CACHE_LINE_SIZE)];
-- 
2.38.1