change otg to host mode

hc

2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/drivers/isdn/mISDN/l1oip_core.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * l1oip.c  low level driver for tunneling layer 1 over IP
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@@ -5,21 +6,6 @@
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  * NOTE: It is not compatible with TDMoIP nor "ISDN over IP".
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  *
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  * Author	Andreas Eversberg (jolly@eversberg.eu)
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2, or (at your option)
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- * any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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- *
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  */
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10
 
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 /* module parameters:
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@@ -289,7 +275,7 @@
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 	p = frame;
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 	/* restart timer */
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-	if (time_before(hc->keep_tl.expires, jiffies + 5 * HZ))
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+	if (time_before(hc->keep_tl.expires, jiffies + 5 * HZ) && !hc->shutdown)
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 		mod_timer(&hc->keep_tl, jiffies + L1OIP_KEEPALIVE * HZ);
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 	else
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 		hc->keep_tl.expires = jiffies + L1OIP_KEEPALIVE * HZ;
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@@ -615,7 +601,9 @@
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 		goto multiframe;
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 	/* restart timer */
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-	if (time_before(hc->timeout_tl.expires, jiffies + 5 * HZ) || !hc->timeout_on) {
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+	if ((time_before(hc->timeout_tl.expires, jiffies + 5 * HZ) ||
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+	     !hc->timeout_on) &&
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+	    !hc->shutdown) {
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 		hc->timeout_on = 1;
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 		mod_timer(&hc->timeout_tl, jiffies + L1OIP_TIMEOUT * HZ);
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 	} else /* only adjust timer */
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@@ -718,8 +706,7 @@
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 		printk(KERN_DEBUG "%s: socket created and open\n",
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 		       __func__);
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 	while (!signal_pending(current)) {
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-		iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &iov, 1,
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-				recvbuf_size);
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+		iov_iter_kvec(&msg.msg_iter, READ, &iov, 1, recvbuf_size);
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 		recvlen = sock_recvmsg(socket, &msg, 0);
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 		if (recvlen > 0) {
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 			l1oip_socket_parse(hc, &sin_rx, recvbuf, recvlen);
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@@ -1247,11 +1234,10 @@
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 {
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 	int	ch;
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-	if (timer_pending(&hc->keep_tl))
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-		del_timer(&hc->keep_tl);
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+	hc->shutdown = true;
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-	if (timer_pending(&hc->timeout_tl))
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-		del_timer(&hc->timeout_tl);
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+	del_timer_sync(&hc->keep_tl);
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+	del_timer_sync(&hc->timeout_tl);
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 	cancel_work_sync(&hc->workq);
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@@ -1269,8 +1255,7 @@
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 			mISDN_freebchannel(hc->chan[ch].bch);
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 			kfree(hc->chan[ch].bch);
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 #ifdef REORDER_DEBUG
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-			if (hc->chan[ch].disorder_skb)
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-				dev_kfree_skb(hc->chan[ch].disorder_skb);
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+			dev_kfree_skb(hc->chan[ch].disorder_skb);
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 #endif
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 		}
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 	}