linux-kernel - [PATCH v2] staging: emxx_udc: Remove nbu2ss_drv_set_dp

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Message-Id: <1422661545-24260-1-git-send-email-chris@rorvick.com>
Date:	Fri, 30 Jan 2015 17:45:45 -0600
From:	Chris Rorvick <chris@...vick.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Vincenzo Scotti <vinc94@...il.com>
Cc:	Chris Rorvick <chris@...vick.com>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Roberta Dobrescu <roberta.dobrescu@...il.com>,
	Sachin Kamat <sachin.kamat@...sung.com>,
	Simon Horman <horms+renesas@...ge.net.au>,
	Ebru Akagunduz <ebru.akagunduz@...il.com>,
	Magnus Damm <damm+renesas@...nsource.se>,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] staging: emxx_udc: Remove nbu2ss_drv_set_dp_info()

This function is an awkward helper for nbu2ss_drv_ep_init().  Most of
its logic is devoted to determining if the current endpoint is ep0,
something the caller can easily do in a single line.  And there is not
a lot going on beyond that.

Move this logic up into nbu2ss_drv_ep_init().  The result is much easier
to understand and the resulting function is still viewable within a
single screen.

Signed-off-by: Chris Rorvick <chris@...vick.com>
---
As made obvious by the previous version of this patch: compile tested
only.

Regards,

Chris

 drivers/staging/emxx_udc/emxx_udc.c | 52 ++++++++++---------------------------
 1 file changed, 14 insertions(+), 38 deletions(-)

diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index eb178fc..82c492f 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -3249,42 +3249,6 @@ static const char *gp_ep_name[NUM_ENDPOINTS] = {
 };
 
 /*-------------------------------------------------------------------------*/
-static void __init nbu2ss_drv_set_ep_info(
-	struct nbu2ss_udc	*udc,
-	struct nbu2ss_ep	*ep,
-	const char *name)
-{
-	ep->udc = udc;
-	ep->desc = NULL;
-
-	ep->ep.driver_data = NULL;
-	ep->ep.name = name;
-	ep->ep.ops = &nbu2ss_ep_ops;
-
-	if (isdigit(name[2])) {
-
-		long	num;
-		int	res;
-		char	tempbuf[2];
-
-		tempbuf[0] = name[2];
-		tempbuf[1] = '\0';
-		res = kstrtol(tempbuf, 16, &num);
-
-		if (num == 0)
-			ep->ep.maxpacket = EP0_PACKETSIZE;
-		else
-			ep->ep.maxpacket = EP_PACKETSIZE;
-
-	} else {
-		ep->ep.maxpacket = EP_PACKETSIZE;
-	}
-
-	list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
-	INIT_LIST_HEAD(&ep->queue);
-}
-
-/*-------------------------------------------------------------------------*/
 static void __init nbu2ss_drv_ep_init(struct nbu2ss_udc *udc)
 {
 	int	i;
@@ -3292,9 +3256,21 @@ static void __init nbu2ss_drv_ep_init(struct nbu2ss_udc *udc)
 	INIT_LIST_HEAD(&udc->gadget.ep_list);
 	udc->gadget.ep0 = &udc->ep[0].ep;
 
+	for (i = 0; i < NUM_ENDPOINTS; i++) {
+		struct nbu2ss_ep *ep = &udc->ep[i];
 
-	for (i = 0; i < NUM_ENDPOINTS; i++)
-		nbu2ss_drv_set_ep_info(udc, &udc->ep[i], gp_ep_name[i]);
+		ep->udc = udc;
+		ep->desc = NULL;
+
+		ep->ep.driver_data = NULL;
+		ep->ep.name = gp_ep_name[i];
+		ep->ep.ops = &nbu2ss_ep_ops;
+
+		ep->ep.maxpacket = (i == 0 ? EP0_PACKETSIZE : EP_PACKETSIZE);
+
+		list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
+		INIT_LIST_HEAD(&ep->queue);
+	}
 
 	list_del_init(&udc->ep[0].ep.ep_list);
 }
-- 
2.1.0

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