change otg to host mode

hc

2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/arch/parisc/lib/checksum.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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  * INET		An implementation of the TCP/IP protocol suite for the LINUX
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  *		operating system.  INET is implemented using the  BSD Socket
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@@ -8,11 +9,6 @@
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  * Authors:	Ralf Baechle, <ralf@waldorf-gmbh.de>
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  *		Lots of code moved from tcp.c and ip.c; see those files
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  *		for more names.
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- *
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- *		This program is free software; you can redistribute it and/or
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- *		modify it under the terms of the GNU General Public License
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- *		as published by the Free Software Foundation; either version
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- *		2 of the License, or (at your option) any later version.
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  */
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 #include <linux/module.h>
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 #include <linux/types.h>
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@@ -110,40 +106,3 @@
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 }
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 EXPORT_SYMBOL(csum_partial);
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-
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-/*
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- * copy while checksumming, otherwise like csum_partial
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- */
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-__wsum csum_partial_copy_nocheck(const void *src, void *dst,
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-				       int len, __wsum sum)
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-{
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-	/*
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-	 * It's 2:30 am and I don't feel like doing it real ...
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-	 * This is lots slower than the real thing (tm)
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-	 */
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-	sum = csum_partial(src, len, sum);
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-	memcpy(dst, src, len);
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-
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-	return sum;
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-}
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-EXPORT_SYMBOL(csum_partial_copy_nocheck);
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-
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-/*
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- * Copy from userspace and compute checksum.  If we catch an exception
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- * then zero the rest of the buffer.
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- */
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-__wsum csum_partial_copy_from_user(const void __user *src,
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-					void *dst, int len,
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-					__wsum sum, int *err_ptr)
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-{
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-	int missing;
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-
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-	missing = copy_from_user(dst, src, len);
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-	if (missing) {
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-		memset(dst + len - missing, 0, missing);
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-		*err_ptr = -EFAULT;
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-	}
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-		
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-	return csum_partial(dst, len, sum);
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-}
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-EXPORT_SYMBOL(csum_partial_copy_from_user);