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Commit 7e67b914 authored by ChandanaKishori Chiluveru's avatar ChandanaKishori Chiluveru Committed by Gerrit - the friendly Code Review server
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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>
Signed-off-by: default avatarAjay Agarwal <ajaya@codeaurora.org>
parent 432006ed

drivers/usb/gadget/function/f_rmnet.c

+4 −2
Original line number Diff line number Diff line
@@ -332,7 +332,8 @@ int name_to_prot(struct f_rmnet *dev, const char *name) 
}



static struct usb_request *

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

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

		gfp_t flags)

{

	struct usb_request *req;
@@ -340,7 +341,7 @@ frmnet_alloc_req(struct usb_ep *ep, unsigned int 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);
@@ -1014,6 +1015,7 @@ static int ipa_update_function_bind_params(struct f_rmnet *dev, 
		ep->driver_data = cdev;

		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",