add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/firewire/nosy.c
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@@ -1,20 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * nosy - Snoop mode driver for TI PCILynx 1394 controllers
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  * Copyright (C) 2002-2007 Kristian Høgsberg
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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 of the License, or
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- * (at your option) 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 Foundation,
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- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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  */
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 #include <linux/device.h>
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@@ -65,7 +52,7 @@
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 struct packet {
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 	unsigned int length;
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-	char data[0];
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+	char data[];
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 };
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 struct packet_buffer {
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@@ -303,7 +290,7 @@
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 	file->private_data = client;
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-	return nonseekable_open(inode, file);
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+	return stream_open(inode, file);
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 fail:
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 	kfree(client);
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 	lynx_put(lynx);
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@@ -569,7 +556,7 @@
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 	INIT_LIST_HEAD(&lynx->client_list);
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 	kref_init(&lynx->kref);
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-	lynx->registers = ioremap_nocache(pci_resource_start(dev, 0),
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+	lynx->registers = ioremap(pci_resource_start(dev, 0),
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 					  PCILYNX_MAX_REGISTER);
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 	if (lynx->registers == NULL) {
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 		dev_err(&dev->dev, "Failed to map registers\n");