Support Linux 6.11

To align with the virtio subsystem changes introduced in Linux kernel
v6.11 API, this commit updates the virtqueue setup logic to use
`struct virtqueue_info` and the new `virtio_find_vqs()` interface.

The old `virtio_find_vqs()` interface has been reworked and renamed to
use `struct virtqueue_info` starting from Linux 6.11, replacing the
legacy helpers entirely.

Since the original code uses `virtio_find_vqs()` (which internally
passes `NULL` for ctx), `ctx` is conservatively set to `false`.

ref:
Introduce struct virtqueue_info and find_vqs_info() config op
torvalds/linux@c502eb8

Rename virtio_find_vqs_info() to virtio_find_vqs
torvalds/linux@6c85d6b

Remove legacy virtio_find_vqs() and virtio_find_vqs_ctx() helpers
torvalds/linux@3e8d51c

Author: horseface1110

vwifi.c

@@ -3167,8 +3167,23 @@ static int vwifi_virtio_init_vqs(struct virtio_device *vdev)
         [VWIFI_VQ_TX] = "tx",
     };
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 11, 0)
+    struct virtqueue_info vqs_info[VWIFI_NUM_VQS];
+    /* Set ctx to false to maintain compatibility with legacy
+     * virtio_find_vqs() behavior, which implicitly passed NULL for ctx.
+     */
+    for (int i = 0; i < VWIFI_NUM_VQS; i++) {
+        vqs_info[i].callback = callbacks[i];
+        vqs_info[i].name = names[i];
+        vqs_info[i].ctx = false;
+    }
+
+    return virtio_find_vqs(vdev, VWIFI_NUM_VQS, vwifi_vqs, vqs_info, NULL);
+
+#else
     return virtio_find_vqs(vdev, VWIFI_NUM_VQS, vwifi_vqs, callbacks, names,
                            NULL);
+#endif
 }
 
 static void vwifi_virtio_fill_vq(struct virtqueue *vq, u8 vnet_hdr_len)