linux-kernel - [PATCH v1 3/4] usb: gadget: udc: bcm63xx: Convert to use list

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Message-Id: <20221114112842.38565-3-andriy.shevchenko@linux.intel.com>
Date:   Mon, 14 Nov 2022 13:28:41 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Jakob Koschel <jakobkoschel@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mathias Nyman <mathias.nyman@...ux.intel.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Kevin Cernekee <cernekee@...il.com>,
        Mathias Nyman <mathias.nyman@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH v1 3/4] usb: gadget: udc: bcm63xx: Convert to use list_count()

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.shevchenko@...ux.intel.com>
---
 drivers/usb/gadget/udc/bcm63xx_udc.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/gadget/udc/bcm63xx_udc.c b/drivers/usb/gadget/udc/bcm63xx_udc.c
index 2cdb07905bde..0762e49e85f8 100644
--- a/drivers/usb/gadget/udc/bcm63xx_udc.c
+++ b/drivers/usb/gadget/udc/bcm63xx_udc.c
@@ -2172,7 +2172,6 @@ static int bcm63xx_iudma_dbg_show(struct seq_file *s, void *p)
 
 	for (ch_idx = 0; ch_idx < BCM63XX_NUM_IUDMA; ch_idx++) {
 		struct iudma_ch *iudma = &udc->iudma[ch_idx];
-		struct list_head *pos;
 
 		seq_printf(s, "IUDMA channel %d -- ", ch_idx);
 		switch (iudma_defaults[ch_idx].ep_type) {
@@ -2205,14 +2204,10 @@ static int bcm63xx_iudma_dbg_show(struct seq_file *s, void *p)
 		seq_printf(s, "  desc: %d/%d used", iudma->n_bds_used,
 			   iudma->n_bds);
 
-		if (iudma->bep) {
-			i = 0;
-			list_for_each(pos, &iudma->bep->queue)
-				i++;
-			seq_printf(s, "; %d queued\n", i);
-		} else {
+		if (iudma->bep)
+			seq_printf(s, "; %zu queued\n", list_count(&iudma->bep->queue));
+		else
 			seq_printf(s, "\n");
-		}
 
 		for (i = 0; i < iudma->n_bds; i++) {
 			struct bcm_enet_desc *d = &iudma->bd_ring[i];
-- 
2.35.1