Commit a4a264f1 authored by Stephen Rothwell's avatar Stephen Rothwell
Browse files

ppc64: use usercopy_64.c from powerpc/lib



since it is identical to usercopy.c from ppc64/lib.
Signed-off-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
parent a2b0ca84
......@@ -4,13 +4,13 @@
ifeq ($(CONFIG_PPC_MERGE),y)
obj-y := string.o
obj-$(CONFIG_PPC64) += usercopy_64.o mem_64.o
obj-$(CONFIG_PPC64) += mem_64.o
endif
obj-y += strcase.o
obj-$(CONFIG_PPC32) += div64.o copy_32.o checksum_32.o
obj-$(CONFIG_PPC64) += checksum_64.o copypage_64.o copyuser_64.o \
memcpy_64.o
memcpy_64.o usercopy_64.o
obj-$(CONFIG_PPC_ISERIES) += e2a.o
ifeq ($(CONFIG_PPC64),y)
obj-$(CONFIG_SMP) += locks.o
......
......@@ -3,4 +3,3 @@
#
lib-y := string.o
lib-y += usercopy.o
/*
* Functions which are too large to be inlined.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/module.h>
#include <asm/uaccess.h>
unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
{
if (likely(access_ok(VERIFY_READ, from, n)))
n = __copy_from_user(to, from, n);
else
memset(to, 0, n);
return n;
}
unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
{
if (likely(access_ok(VERIFY_WRITE, to, n)))
n = __copy_to_user(to, from, n);
return n;
}
unsigned long copy_in_user(void __user *to, const void __user *from,
unsigned long n)
{
might_sleep();
if (likely(access_ok(VERIFY_READ, from, n) &&
access_ok(VERIFY_WRITE, to, n)))
n =__copy_tofrom_user(to, from, n);
return n;
}
EXPORT_SYMBOL(copy_from_user);
EXPORT_SYMBOL(copy_to_user);
EXPORT_SYMBOL(copy_in_user);
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