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nexedi
linux
Commits
f98f48ee
Commit
f98f48ee
authored
Mar 21, 2017
by
Al Viro
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sh: switch to RAW_COPY_USER
Signed-off-by:
Al Viro
<
viro@zeniv.linux.org.uk
>
parent
bcd541d9
Changes
2
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2 changed files
with
5 additions
and
32 deletions
+5
-32
arch/sh/Kconfig
arch/sh/Kconfig
+1
-0
arch/sh/include/asm/uaccess.h
arch/sh/include/asm/uaccess.h
+4
-32
No files found.
arch/sh/Kconfig
View file @
f98f48ee
...
...
@@ -48,6 +48,7 @@ config SUPERH
select HAVE_ARCH_AUDITSYSCALL
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_NMI
select ARCH_HAS_RAW_COPY_USER
help
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast
...
...
arch/sh/include/asm/uaccess.h
View file @
f98f48ee
...
...
@@ -108,19 +108,18 @@ extern __must_check long strnlen_user(const char __user *str, long n);
__kernel_size_t
__copy_user
(
void
*
to
,
const
void
*
from
,
__kernel_size_t
n
);
static
__always_inline
unsigned
long
_
_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
)
{
return
__copy_user
(
to
,
(
__force
void
*
)
from
,
n
);
}
static
__always_inline
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
)
{
return
__copy_user
((
__force
void
*
)
to
,
from
,
n
);
}
#define __copy_to_user_inatomic __copy_to_user
#define __copy_from_user_inatomic __copy_from_user
#define INLINE_COPY_FROM_USER
#define INLINE_COPY_TO_USER
/*
* Clear the area and return remaining number of bytes
...
...
@@ -140,33 +139,6 @@ __kernel_size_t __clear_user(void *addr, __kernel_size_t size);
__cl_size; \
})
static
inline
unsigned
long
copy_from_user
(
void
*
to
,
const
void
__user
*
from
,
unsigned
long
n
)
{
unsigned
long
__copy_from
=
(
unsigned
long
)
from
;
__kernel_size_t
__copy_size
=
(
__kernel_size_t
)
n
;
if
(
__copy_size
&&
__access_ok
(
__copy_from
,
__copy_size
))
__copy_size
=
__copy_user
(
to
,
from
,
__copy_size
);
if
(
unlikely
(
__copy_size
))
memset
(
to
+
(
n
-
__copy_size
),
0
,
__copy_size
);
return
__copy_size
;
}
static
inline
unsigned
long
copy_to_user
(
void
__user
*
to
,
const
void
*
from
,
unsigned
long
n
)
{
unsigned
long
__copy_to
=
(
unsigned
long
)
to
;
__kernel_size_t
__copy_size
=
(
__kernel_size_t
)
n
;
if
(
__copy_size
&&
__access_ok
(
__copy_to
,
__copy_size
))
return
__copy_user
(
to
,
from
,
__copy_size
);
return
__copy_size
;
}
extern
void
*
set_exception_table_vec
(
unsigned
int
vec
,
void
*
handler
);
static
inline
void
*
set_exception_table_evt
(
unsigned
int
evt
,
void
*
handler
)
...
...
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