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Commit f6629052 authored by ChandanaKishori Chiluveru's avatar ChandanaKishori Chiluveru
Browse files

USB: f_rmnet: Increase the IN endpoint buffer allocation 



Some UDC may require allocation of some extra bytes for
TX buffer due to hardware requirement. Add necessary
changes for the same.

Change-Id: Ie572b5222f7bdc66774db86efac64e697dcdcdd2
Signed-off-by: default avatarSujeet Kumar <ksujeet@codeaurora.org>
Signed-off-by: default avatarChandanaKishori Chiluveru <cchilu@codeaurora.org>
parent 2c82dc59

drivers/usb/gadget/function/f_rmnet.c

+4 −2
Original line number Diff line number Diff line
@@ -253,7 +253,8 @@ static inline struct f_rmnet *port_to_rmnet(struct grmnet *r) 
}



static struct usb_request *

frmnet_alloc_req(struct usb_ep *ep, unsigned len, gfp_t flags)

frmnet_alloc_req(struct usb_ep *ep, unsigned len, size_t extra_buf_alloc,

		gfp_t flags)

{

	struct usb_request *req;
@@ -261,7 +262,7 @@ frmnet_alloc_req(struct usb_ep *ep, unsigned len, gfp_t flags) 
	if (!req)

		return ERR_PTR(-ENOMEM);



	req->buf = kmalloc(len, flags);

	req->buf = kmalloc(len + extra_buf_alloc, flags);

	if (!req->buf) {

		usb_ep_free_request(ep, req);

		return ERR_PTR(-ENOMEM);
@@ -1175,6 +1176,7 @@ static int frmnet_bind(struct usb_configuration *c, struct usb_function *f) 


	dev->notify_req = frmnet_alloc_req(ep,

				sizeof(struct usb_cdc_notification),

				cdev->gadget->extra_buf_alloc,

				GFP_KERNEL);

	if (IS_ERR(dev->notify_req)) {

		pr_err("%s: unable to allocate memory for notify req\n",