-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.

Use the `DEFINE_RAW_FLEX()` helper for an on-stack definition of
a flexible structure where the size of the flexible-array member
is known at compile-time, and refactor the rest of the code,
accordingly.

So, with these changes, fix the following warning:

drivers/gpu/drm/nouveau/nvif/conn.c:34:38: warning: structure containing a 
flexible array member is not at the end of another structure 
[-Wflex-array-member-not-at-end]

Signed-off-by: Gustavo A. R. Silva <gustavo...@kernel.org>
---
 drivers/gpu/drm/nouveau/nvif/conn.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvif/conn.c 
b/drivers/gpu/drm/nouveau/nvif/conn.c
index 9ee18cb99264..5a1a83c62a2a 100644
--- a/drivers/gpu/drm/nouveau/nvif/conn.c
+++ b/drivers/gpu/drm/nouveau/nvif/conn.c
@@ -30,17 +30,17 @@ int
 nvif_conn_event_ctor(struct nvif_conn *conn, const char *name, nvif_event_func 
func, u8 types,
                     struct nvif_event *event)
 {
-       struct {
-               struct nvif_event_v0 base;
-               struct nvif_conn_event_v0 conn;
-       } args;
+       DEFINE_RAW_FLEX(struct nvif_event_v0, args, data,
+                       sizeof(struct nvif_conn_event_v0));
+       struct nvif_conn_event_v0 *args_conn =
+                               (struct nvif_conn_event_v0 *)args->data;
        int ret;
 
-       args.conn.version = 0;
-       args.conn.types = types;
+       args_conn->version = 0;
+       args_conn->types = types;
 
        ret = nvif_event_ctor_(&conn->object, name ?: "nvifConnHpd", 
nvif_conn_id(conn),
-                              func, true, &args.base, sizeof(args), false, 
event);
+                              func, true, args, __struct_size(args), false, 
event);
        NVIF_DEBUG(&conn->object, "[NEW EVENT:HPD types:%02x]", types);
        return ret;
 }
-- 
2.43.0

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