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authorAl Viro <viro@zeniv.linux.org.uk>2017-03-28 00:36:07 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2017-03-28 18:23:26 -0400
commit50e9ab915a79b3f51f6de8ef9bbdae8279e8fa46 (patch)
tree0d54d77b5b285078494440e38706c62555a78776 /arch
parent72d6f65dd7895276f929b48c8397575e272efcca (diff)
downloadlinux-50e9ab915a79b3f51f6de8ef9bbdae8279e8fa46.tar.bz2
bfin: switch to RAW_COPY_USER
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/blackfin/Kconfig1
-rw-r--r--arch/blackfin/include/asm/uaccess.h26
2 files changed, 5 insertions, 22 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 3c1bd640042a..919dad1436f7 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -41,6 +41,7 @@ config BLACKFIN
select MODULES_USE_ELF_RELA
select HAVE_DEBUG_STACKOVERFLOW
select HAVE_NMI
+ select ARCH_HAS_RAW_COPY_USER
config GENERIC_CSUM
def_bool y
diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h
index 9019cccf2aea..f54a34f31cea 100644
--- a/arch/blackfin/include/asm/uaccess.h
+++ b/arch/blackfin/include/asm/uaccess.h
@@ -144,41 +144,23 @@ static inline int bad_user_access_length(void)
: "a" (__ptr(ptr))); \
})
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
-
static inline 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)
{
memcpy(to, (const void __force *)from, n);
return 0;
}
static 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)
{
memcpy((void __force *)to, from, n);
SSYNC();
return 0;
}
-static inline unsigned long __must_check
-copy_from_user(void *to, const void __user *from, unsigned long n)
-{
- if (likely(access_ok(VERIFY_READ, from, n)))
- return __copy_from_user(to, from, n);
- memset(to, 0, n);
- return n;
-}
-
-static inline unsigned long __must_check
-copy_to_user(void __user *to, const void *from, unsigned long n)
-{
- if (likely(access_ok(VERIFY_WRITE, to, n)))
- return __copy_to_user(to, from, n);
- return n;
-}
-
+#define INLINE_COPY_FROM_USER
+#define INLINE_COPY_TO_USER
/*
* Copy a null terminated string from userspace.
*/