[PATCH rdma-core 1/3] Fix compilation warnings when NDEBUG is set

[Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>]

From: Alaa Hleihel <alaa-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>

When NDEBUG is set (-DCMAKE_BUILD_TYPE=Release) and CFLAGS is set to
-Werorr, we get some compilation errors as the following:

rdma-core/libibverbs/neigh.c:378:13: error: variable 'rc' set but not used [-Werror=unused-but-set-variable]
     ssize_t rc;

Signed-off-by: Alaa Hleihel <alaa-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Signed-off-by: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
 libibverbs/neigh.c  | 2 +-
 librdmacm/rsocket.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/libibverbs/neigh.c b/libibverbs/neigh.c
index 3e9ee926..21177db0 100644
--- a/libibverbs/neigh.c
+++ b/libibverbs/neigh.c
@@ -375,7 +375,7 @@ static struct nl_addr *process_get_neigh_mac(
 
 			if (FD_ISSET(timer_fd, &fdset)) {
 				uint64_t read_val;
-				ssize_t rc;
+				ssize_t __attribute__((unused)) rc;
 
 				rc =
 				    read(timer_fd, &read_val, sizeof(read_val));
diff --git a/librdmacm/rsocket.c b/librdmacm/rsocket.c
index 693d9eb5..2ce71627 100644
--- a/librdmacm/rsocket.c
+++ b/librdmacm/rsocket.c
@@ -408,14 +408,14 @@ struct ds_udp_header {
 static void write_all(int fd, const void *msg, size_t len)
 {
 	// FIXME: if fd is a socket this really needs to handle EINTR and other conditions.
-	ssize_t rc = write(fd, msg, len);
+	ssize_t __attribute__((unused)) rc = write(fd, msg, len);
 	assert(rc == len);
 }
 
 static void read_all(int fd, void *msg, size_t len)
 {
 	// FIXME: if fd is a socket this really needs to handle EINTR and other conditions.
-	ssize_t rc = read(fd, msg, len);
+	ssize_t __attribute__((unused)) rc = read(fd, msg, len);
 	assert(rc == len);
 }
 
-- 
2.15.0

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