1 files changed, 0 insertions, 82 deletions
diff --git a/arch/x86/lib/copy_mc.c b/arch/x86/lib/copy_mc.c
deleted file mode 100644
index 2633635530b7..000000000000
--- a/arch/x86/lib/copy_mc.c
+++ /dev/null
@@ -1,82 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/* Copyright(c) 2016-2020 Intel Corporation. All rights reserved. */
-
-#include <linux/jump_label.h>
-#include <linux/uaccess.h>
-#include <linux/export.h>
-#include <linux/string.h>
-#include <linux/types.h>
-
-#include <asm/mce.h>
-
-#ifdef CONFIG_X86_MCE
-/*
- * See COPY_MC_TEST for self-test of the copy_mc_fragile()
- * implementation.
- */
-static DEFINE_STATIC_KEY_FALSE(copy_mc_fragile_key);
-
-void enable_copy_mc_fragile(void)
-{
-	static_branch_inc(&copy_mc_fragile_key);
-}
-#define copy_mc_fragile_enabled (static_branch_unlikely(&copy_mc_fragile_key))
-
-/*
- * Similar to copy_user_handle_tail, probe for the write fault point, or
- * source exception point.
- */
-__visible notrace unsigned long
-copy_mc_fragile_handle_tail(char *to, char *from, unsigned len)
-{
-	for (; len; --len, to++, from++)
-		if (copy_mc_fragile(to, from, 1))
-			break;
-	return len;
-}
-#else
-/*
- * No point in doing careful copying, or consulting a static key when
- * there is no #MC handler in the CONFIG_X86_MCE=n case.
- */
-void enable_copy_mc_fragile(void)
-{
-}
-#define copy_mc_fragile_enabled (0)
-#endif
-
-/**
- * copy_mc_to_kernel - memory copy that handles source exceptions
- *
- * @dst:	destination address
- * @src:	source address
- * @len:	number of bytes to copy
- *
- * Call into the 'fragile' version on systems that have trouble
- * actually do machine check recovery. Everyone else can just
- * use memcpy().
- *
- * Return 0 for success, or number of bytes not copied if there was an
- * exception.
- */
-unsigned long __must_check copy_mc_to_kernel(void *dst, const void *src, unsigned len)
-{
-	if (copy_mc_fragile_enabled)
-		return copy_mc_fragile(dst, src, len);
-	memcpy(dst, src, len);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(copy_mc_to_kernel);
-
-unsigned long __must_check copy_mc_to_user(void *dst, const void *src, unsigned len)
-{
-	unsigned long ret;
-
-	if (!copy_mc_fragile_enabled)
-		return copy_user_generic(dst, src, len);
-
-	__uaccess_begin();
-	ret = copy_mc_fragile(dst, src, len);
-	__uaccess_end();
-	return ret;
-}