hw/virtio/vhost: Silence compiler warnings in vhost code when using -…

…Wshadow

Rename a variable in vhost_dev_sync_region() and remove a superfluous
declaration in vhost_commit() to make this code compilable with "-Wshadow".

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20231004114809.105672-1-thuth@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-By: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

hw/virtio/vhost.c

@@ -66,12 +66,12 @@ static void vhost_dev_sync_region(struct vhost_dev *dev,
                                   uint64_t mfirst, uint64_t mlast,
                                   uint64_t rfirst, uint64_t rlast)
 {
-    vhost_log_chunk_t *log = dev->log->log;
+    vhost_log_chunk_t *dev_log = dev->log->log;
 
     uint64_t start = MAX(mfirst, rfirst);
     uint64_t end = MIN(mlast, rlast);
-    vhost_log_chunk_t *from = log + start / VHOST_LOG_CHUNK;
-    vhost_log_chunk_t *to = log + end / VHOST_LOG_CHUNK + 1;
+    vhost_log_chunk_t *from = dev_log + start / VHOST_LOG_CHUNK;
+    vhost_log_chunk_t *to = dev_log + end / VHOST_LOG_CHUNK + 1;
     uint64_t addr = QEMU_ALIGN_DOWN(start, VHOST_LOG_CHUNK);
 
     if (end < start) {
@@ -549,7 +549,7 @@ static void vhost_commit(MemoryListener *listener)
         changed = true;
     } else {
         /* Same size, lets check the contents */
-        for (int i = 0; i < n_old_sections; i++) {
+        for (i = 0; i < n_old_sections; i++) {
             if (!MemoryRegionSection_eq(&old_sections[i],
                                         &dev->mem_sections[i])) {
                 changed = true;