leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

sh: switch to RAW_COPY_USER

Browse Source 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2017-03-21 14:43:13 -04:00
parent bcd541d9a2
commit f98f48ee7c
2 changed files with 5 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/sh/Kconfig
View File

@ -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

36
arch/sh/include/asm/uaccess.h
View File

@ -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)