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c52801a774
Remove the arc implemenation of strncpy/strnlen and instead use the generic versions. The arc version is fairly slow because it always does byte accesses even for aligned data, and its checks for user_addr_max() differ from the generic code. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
35 lines
659 B
C
35 lines
659 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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*
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* Borrowed heavily from MIPS
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*/
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#include <linux/export.h>
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#include <linux/extable.h>
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#include <linux/uaccess.h>
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int fixup_exception(struct pt_regs *regs)
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{
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const struct exception_table_entry *fixup;
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fixup = search_exception_tables(instruction_pointer(regs));
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if (fixup) {
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regs->ret = fixup->fixup;
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return 1;
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}
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return 0;
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}
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#ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
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unsigned long arc_clear_user_noinline(void __user *to,
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unsigned long n)
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{
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return __arc_clear_user(to, n);
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}
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EXPORT_SYMBOL(arc_clear_user_noinline);
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#endif
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