Mark unused functions for cppcheck

We have a couple of functions that are unused (for now) by design.
Although at least one has a flag so that gcc doesn't warn, cppcheck has its
own warnings about this.  Add specific inline suppressions for these rather
than a blanket suppression in the Makefile.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/siphash.c b/siphash.c
index ec38848..37a6d73 100644
--- a/siphash.c
+++ b/siphash.c
@@ -177,6 +177,7 @@ uint64_t siphash_20b(const uint8_t *in, const uint64_t *k)
  *
  * Return: the 64-bit hash output
  */
+/* cppcheck-suppress unusedFunction */
 uint32_t siphash_32b(const uint8_t *in, const uint64_t *k)
 {
 	uint64_t *in64 = (uint64_t *)in;