contrib/vhost-user-gpu: Fix compiler warning when compiling with -Wshadow

Rename some variables to avoid compiler warnings when compiling
with -Wshadow=local.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20231009083726.30301-1-thuth@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
diff --git a/contrib/vhost-user-gpu/vhost-user-gpu.c b/contrib/vhost-user-gpu/vhost-user-gpu.c
index aa30447..bb41758 100644
--- a/contrib/vhost-user-gpu/vhost-user-gpu.c
+++ b/contrib/vhost-user-gpu/vhost-user-gpu.c
@@ -834,7 +834,7 @@
                 .width = width,
                 .height = height,
             };
-            pixman_image_t *i =
+            pixman_image_t *img =
                 pixman_image_create_bits(pixman_image_get_format(res->image),
                                          msg->payload.update.width,
                                          msg->payload.update.height,
@@ -842,11 +842,11 @@
                                                       payload.update.data),
                                          width * bpp);
             pixman_image_composite(PIXMAN_OP_SRC,
-                                   res->image, NULL, i,
+                                   res->image, NULL, img,
                                    extents->x1, extents->y1,
                                    0, 0, 0, 0,
                                    width, height);
-            pixman_image_unref(i);
+            pixman_image_unref(img);
             vg_send_msg(g, msg, -1);
             g_free(msg);
         }
diff --git a/contrib/vhost-user-gpu/vugpu.h b/contrib/vhost-user-gpu/vugpu.h
index 509b679..654c392 100644
--- a/contrib/vhost-user-gpu/vugpu.h
+++ b/contrib/vhost-user-gpu/vugpu.h
@@ -164,12 +164,12 @@
 };
 
 #define VUGPU_FILL_CMD(out) do {                                \
-        size_t s;                                               \
-        s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, 0,  \
+        size_t vugpufillcmd_s_ =                                \
+            iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, 0,  \
                        &out, sizeof(out));                      \
-        if (s != sizeof(out)) {                                 \
+        if (vugpufillcmd_s_ != sizeof(out)) {                   \
             g_critical("%s: command size incorrect %zu vs %zu", \
-                       __func__, s, sizeof(out));               \
+                       __func__, vugpufillcmd_s_, sizeof(out)); \
             return;                                             \
         }                                                       \
     } while (0)