unicore32: get rid of zeroing and switch to RAW_COPY_USER
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 0769066..319519e 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -18,6 +18,7 @@
select ARCH_WANT_FRAME_POINTERS
select GENERIC_IOMAP
select MODULES_USE_ELF_REL
+ select ARCH_HAS_RAW_COPY_USER
help
UniCore-32 is 32-bit Instruction Set Architecture,
including a series of low-power-consumption RISC chip
diff --git a/arch/unicore32/include/asm/uaccess.h b/arch/unicore32/include/asm/uaccess.h
index b2bcab6..1d55f2f 100644
--- a/arch/unicore32/include/asm/uaccess.h
+++ b/arch/unicore32/include/asm/uaccess.h
@@ -24,15 +24,17 @@
#define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size)))
extern unsigned long __must_check
-__copy_from_user(void *to, const void __user *from, unsigned long n);
+raw_copy_from_user(void *to, const void __user *from, unsigned long n);
extern unsigned long __must_check
-__copy_to_user(void __user *to, const void *from, unsigned long n);
+raw_copy_to_user(void __user *to, const void *from, unsigned long n);
extern unsigned long __must_check
__clear_user(void __user *addr, unsigned long n);
extern unsigned long __must_check
__strncpy_from_user(char *to, const char __user *from, unsigned long count);
extern unsigned long
__strnlen_user(const char __user *s, long n);
+#define INLINE_COPY_FROM_USER
+#define INLINE_COPY_TO_USER
#include <asm-generic/uaccess.h>
diff --git a/arch/unicore32/kernel/ksyms.c b/arch/unicore32/kernel/ksyms.c
index 0323528..dcc72ee 100644
--- a/arch/unicore32/kernel/ksyms.c
+++ b/arch/unicore32/kernel/ksyms.c
@@ -46,8 +46,8 @@ EXPORT_SYMBOL(__strncpy_from_user);
EXPORT_SYMBOL(copy_page);
-EXPORT_SYMBOL(__copy_from_user);
-EXPORT_SYMBOL(__copy_to_user);
+EXPORT_SYMBOL(raw_copy_from_user);
+EXPORT_SYMBOL(raw_copy_to_user);
EXPORT_SYMBOL(__clear_user);
EXPORT_SYMBOL(__ashldi3);
diff --git a/arch/unicore32/lib/copy_from_user.S b/arch/unicore32/lib/copy_from_user.S
index ab0767ea..5f80fcb 100644
--- a/arch/unicore32/lib/copy_from_user.S
+++ b/arch/unicore32/lib/copy_from_user.S
@@ -16,7 +16,7 @@
/*
* Prototype:
*
- * size_t __copy_from_user(void *to, const void *from, size_t n)
+ * size_t raw_copy_from_user(void *to, const void *from, size_t n)
*
* Purpose:
*
@@ -87,22 +87,18 @@
.text
-ENTRY(__copy_from_user)
+ENTRY(raw_copy_from_user)
#include "copy_template.S"
-ENDPROC(__copy_from_user)
+ENDPROC(raw_copy_from_user)
.pushsection .fixup,"ax"
.align 0
copy_abort_preamble
- ldm.w (r1, r2), [sp]+
- sub r3, r0, r1
- rsub r2, r3, r2
- stw r2, [sp]
- mov r1, #0
- b.l memset
- ldw.w r0, [sp]+, #4
+ ldm.w (r1, r2, r3), [sp]+
+ sub r0, r0, r1
+ rsub r0, r0, r2
copy_abort_end
.popsection
diff --git a/arch/unicore32/lib/copy_to_user.S b/arch/unicore32/lib/copy_to_user.S
index 6e22151..857c681 100644
--- a/arch/unicore32/lib/copy_to_user.S
+++ b/arch/unicore32/lib/copy_to_user.S
@@ -16,7 +16,7 @@
/*
* Prototype:
*
- * size_t __copy_to_user(void *to, const void *from, size_t n)
+ * size_t raw_copy_to_user(void *to, const void *from, size_t n)
*
* Purpose:
*
@@ -79,11 +79,11 @@
.text
-WEAK(__copy_to_user)
+WEAK(raw_copy_to_user)
#include "copy_template.S"
-ENDPROC(__copy_to_user)
+ENDPROC(raw_copy_to_user)
.pushsection .fixup,"ax"
.align 0