[PATCH v2 4/4] xhci: Convert to use list_count()

[Andy Shevchenko]

The list API now provides the list_count() to help with counting
existing nodes in the list. Uilise it.

Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
---
v2: no change
 drivers/usb/host/xhci-ring.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index ad81e9a508b1..817c31e3b0c8 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2532,7 +2532,6 @@ static int handle_tx_event(struct xhci_hcd *xhci,
        union xhci_trb *ep_trb;
        int status = -EINPROGRESS;
        struct xhci_ep_ctx *ep_ctx;
-       struct list_head *tmp;
        u32 trb_comp_code;
        int td_num = 0;
        bool handling_skipped_tds = false;
@@ -2580,10 +2579,8 @@ static int handle_tx_event(struct xhci_hcd *xhci,
        }
 
        /* Count current td numbers if ep->skip is set */
-       if (ep->skip) {
-               list_for_each(tmp, &ep_ring->td_list)
-                       td_num++;
-       }
+       if (ep->skip)
+               td_num += list_count(&ep_ring->td_list);
 
        /* Look for common error cases */
        switch (trb_comp_code) {
-- 
2.35.1