passt: Address gcc 11 warnings

A mix of unchecked return values, a missing permission mask for
open(2) with O_CREAT, and some false positives from
-Wstringop-overflow and -Wmaybe-uninitialized.

Reported-by: Martin Hauke <mardnh@gmx.de>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/siphash.c b/siphash.c
index b7a7861..88f8bd2 100644
--- a/siphash.c
+++ b/siphash.c
@@ -146,6 +146,9 @@ uint32_t siphash_12b(const uint8_t *in, const uint64_t *k)
  *
  * Return: the 64-bit hash output
  */
+#if SIPHASH_20B_NOINLINE
+__attribute__((__noinline__))	/* See comment in Makefile */
+#endif
 uint64_t siphash_20b(const uint8_t *in, const uint64_t *k)
 {
 	uint32_t *in32 = (uint32_t *)in;