[PATCH 06/52] migration/rdma: Clean up two more harmless signed vs. unsigned issues

[Markus Armbruster]

qemu_rdma_exchange_get_response() compares int parameter @expecting
with uint32_t head->type.  Actual arguments are non-negative
enumeration constants, RDMAControlHeader uint32_t member type, or
qemu_rdma_exchange_recv() int parameter expecting.  Actual arguments
for the latter are non-negative enumeration constants.  Change both
parameters to uint32_t.

In qio_channel_rdma_readv(), loop control variable @i is ssize_t, and
counts from 0 up to @niov, which is size_t.  Change @i to size_t.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 migration/rdma.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/migration/rdma.c b/migration/rdma.c
index 4328610a4c..e3b8d0506c 100644
--- a/migration/rdma.c
+++ b/migration/rdma.c
@@ -1801,7 +1801,7 @@ static int qemu_rdma_post_recv_control(RDMAContext *rdma, 
int idx)
  * Block and wait for a RECV control channel message to arrive.
  */
 static int qemu_rdma_exchange_get_response(RDMAContext *rdma,
-                RDMAControlHeader *head, int expecting, int idx)
+                RDMAControlHeader *head, uint32_t expecting, int idx)
 {
     uint32_t byte_len;
     int ret = qemu_rdma_block_for_wrid(rdma, RDMA_WRID_RECV_CONTROL + idx,
@@ -1959,7 +1959,7 @@ static int qemu_rdma_exchange_send(RDMAContext *rdma, 
RDMAControlHeader *head,
  * control-channel message.
  */
 static int qemu_rdma_exchange_recv(RDMAContext *rdma, RDMAControlHeader *head,
-                                int expecting)
+                                   uint32_t expecting)
 {
     RDMAControlHeader ready = {
                                 .len = 0,
@@ -2851,7 +2851,7 @@ static ssize_t qio_channel_rdma_readv(QIOChannel *ioc,
     RDMAContext *rdma;
     RDMAControlHeader head;
     int ret = 0;
-    ssize_t i;
+    size_t i;
     size_t done = 0;
 
     RCU_READ_LOCK_GUARD();
-- 
2.41.0