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c6x: switch to RAW_COPY_USER

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2017-03-28 01:11:14 -04:00
parent dcecd9369e
commit 86944ee158
2 changed files with 7 additions and 6 deletions
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1
arch/c6x/Kconfig
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@ -18,6 +18,7 @@ config C6X
select GENERIC_CLOCKEVENTS
select MODULES_USE_ELF_RELA
select ARCH_NO_COHERENT_DMA_MMAP
select ARCH_HAS_RAW_COPY_USER
config MMU
def_bool n

12
arch/c6x/include/asm/uaccess.h
View File

@ -14,12 +14,10 @@
#include <linux/string.h>
/*
* __copy_from_user/copy_to_user are based on ones in asm-generic/uaccess.h
*
* C6X supports unaligned 32 and 64 bit loads and stores.
*/
static inline __must_check long __copy_from_user(void *to,
const void __user *from, unsigned long n)
static inline __must_check unsigned long
raw_copy_from_user(void *to, const void __user *from, unsigned long n)
{
u32 tmp32;
u64 tmp64;
@ -54,8 +52,8 @@ static inline __must_check long __copy_from_user(void *to,
return 0;
}
static inline __must_check long __copy_to_user(void __user *to,
const void *from, unsigned long n)
static inline __must_check unsigned long
raw_copy_to_user(void __user *to, const void *from, unsigned long n)
{
u32 tmp32;
u64 tmp64;
@ -89,6 +87,8 @@ static inline __must_check long __copy_to_user(void __user *to,
memcpy((void __force *)to, from, n);
return 0;
}
#define INLINE_COPY_FROM_USER
#define INLINE_COPY_TO_USER
extern int _access_ok(unsigned long addr, unsigned long size);
#ifdef CONFIG_ACCESS_CHECK