[PATCHv2 7/8] usb: gadget: f_rndis: OS Descriptors configfs support

[Andrzej Pietrasiewicz]

Added handling of OS Descriptors support for f_rndis.

Signed-off-by: Andrzej Pietrasiewicz <andrze...@samsung.com>
---
 drivers/usb/gadget/f_rndis.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c
index a7633d6..eed3ad8 100644
--- a/drivers/usb/gadget/f_rndis.c
+++ b/drivers/usb/gadget/f_rndis.c
@@ -27,6 +27,7 @@
 #include "u_ether_configfs.h"
 #include "u_rndis.h"
 #include "rndis.h"
+#include "configfs.h"
 
 /*
  * This function is an RNDIS Ethernet port -- a Microsoft protocol that's
@@ -895,12 +896,15 @@ static void rndis_free_inst(struct usb_function_instance 
*f)
                else
                        free_netdev(opts->net);
        }
+
+       kfree(opts->rndis_os_desc.group.default_groups); /* single VLA chunk */
        kfree(opts);
 }
 
 static struct usb_function_instance *rndis_alloc_inst(void)
 {
        struct f_rndis_opts *opts;
+       struct usb_os_desc *descs[1];
 
        opts = kzalloc(sizeof(*opts), GFP_KERNEL);
        if (!opts)
@@ -917,6 +921,9 @@ static struct usb_function_instance *rndis_alloc_inst(void)
        }
        INIT_LIST_HEAD(&opts->rndis_os_desc.ext_prop);
 
+       descs[0] = &opts->rndis_os_desc;
+       usb_os_desc_prepare_interf_dir(&opts->func_inst.group, 1, descs,
+                                      THIS_MODULE);
        config_group_init_type_name(&opts->func_inst.group, "",
                                    &rndis_func_type);
 
-- 
1.8.3.2

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