mk-rootfs.sh

hc

2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376

 kernel/drivers/pnp/isapnp/core.c
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@@ -1,21 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *  ISA Plug & Play support
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  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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- *
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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
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- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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  *
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  *  Changelog:
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  *  2000-01-01	Added quirks handling for buggy hardware
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@@ -761,34 +747,12 @@
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 }
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 /*
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- *  Compute ISA PnP checksum for first eight bytes.
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- */
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-static unsigned char __init isapnp_checksum(unsigned char *data)
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-{
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-	int i, j;
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-	unsigned char checksum = 0x6a, bit, b;
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-
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-	for (i = 0; i < 8; i++) {
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-		b = data[i];
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-		for (j = 0; j < 8; j++) {
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-			bit = 0;
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-			if (b & (1 << j))
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-				bit = 1;
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-			checksum =
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-			    ((((checksum ^ (checksum >> 1)) & 0x01) ^ bit) << 7)
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-			    | (checksum >> 1);
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-		}
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-	}
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-	return checksum;
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-}
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-
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-/*
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  *  Build device list for all present ISA PnP devices.
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  */
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 static int __init isapnp_build_device_list(void)
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 {
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 	int csn;
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-	unsigned char header[9], checksum;
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+	unsigned char header[9];
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 	struct pnp_card *card;
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 	u32 eisa_id;
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 	char id[8];
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@@ -798,7 +762,6 @@
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 	for (csn = 1; csn <= isapnp_csn_count; csn++) {
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 		isapnp_wake(csn);
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 		isapnp_peek(header, 9);
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-		checksum = isapnp_checksum(header);
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 		eisa_id = header[0] | header[1] << 8 |
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 			  header[2] << 16 | header[3] << 24;
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 		pnp_eisa_id_to_string(eisa_id, id);