linux-kernel - [PATCH 5/9] usb: xhci: use list_for_each

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Message-Id: <0fbea26fdbcb76e24188fc0800d425f927f45b6f.1450455485.git.geliangtang@163.com>
Date:	Sat, 19 Dec 2015 00:34:30 +0800
From:	Geliang Tang <geliangtang@....com>
To:	Mathias Nyman <mathias.nyman@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Geliang Tang <geliangtang@....com>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 5/9] usb: xhci: use list_for_each_entry

Use list_for_each_entry() instead of list_for_each() to simplify
the code.

Signed-off-by: Geliang Tang <geliangtang@....com>
---
 drivers/usb/host/xhci-ring.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index f1c21c4..4ed15c0 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -640,7 +640,6 @@ static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci, int slot_id,
 	unsigned int ep_index;
 	struct xhci_ring *ep_ring;
 	struct xhci_virt_ep *ep;
-	struct list_head *entry;
 	struct xhci_td *cur_td = NULL;
 	struct xhci_td *last_unlinked_td;
 
@@ -670,8 +669,7 @@ static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci, int slot_id,
 	 * it.  We're also in the event handler, so we can't get re-interrupted
 	 * if another Stop Endpoint command completes
 	 */
-	list_for_each(entry, &ep->cancelled_td_list) {
-		cur_td = list_entry(entry, struct xhci_td, cancelled_td_list);
+	list_for_each_entry(cur_td, &ep->cancelled_td_list, cancelled_td_list) {
 		xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
 				"Removing canceled TD starting at 0x%llx (dma).",
 				(unsigned long long)xhci_trb_virt_to_dma(
-- 
2.5.0


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