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mips: get rid of tail-zeroing in primitives

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2017-03-20 12:03:16 -04:00
parent ab0aca27c4
commit 1a4fded6d3
3 changed files with 3 additions and 96 deletions
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19
arch/mips/include/asm/uaccess.h
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@@ -841,9 +841,6 @@ extern size_t __copy_user(void *__to, const void *__from, size_t __n);
#define __invoke_copy_from_kernel(to, from, n) \
__invoke_copy_from(__copy_user, to, from, n)
#define __invoke_copy_from_kernel_inatomic(to, from, n) \
__invoke_copy_from(__copy_user_inatomic, to, from, n)
#define __invoke_copy_to_kernel(to, from, n) \
__invoke_copy_to(__copy_user, to, from, n)
@@ -854,9 +851,6 @@ extern size_t __copy_user(void *__to, const void *__from, size_t __n);
#define __invoke_copy_from_user(to, from, n) \
__invoke_copy_from(__copy_user, to, from, n)
#define __invoke_copy_from_user_inatomic(to, from, n) \
__invoke_copy_from(__copy_user_inatomic, to, from, n)
#define __invoke_copy_to_user(to, from, n) \
__invoke_copy_to(__copy_user, to, from, n)
@@ -867,8 +861,6 @@ extern size_t __copy_user(void *__to, const void *__from, size_t __n);
/* EVA specific functions */
extern size_t __copy_user_inatomic_eva(void *__to, const void *__from,
size_t __n);
extern size_t __copy_from_user_eva(void *__to, const void *__from,
size_t __n);
extern size_t __copy_to_user_eva(void *__to, const void *__from,
@@ -882,9 +874,6 @@ extern size_t __copy_in_user_eva(void *__to, const void *__from, size_t __n);
#define __invoke_copy_from_user(to, from, n) \
__invoke_copy_from(__copy_from_user_eva, to, from, n)
#define __invoke_copy_from_user_inatomic(to, from, n) \
__invoke_copy_from(__copy_user_inatomic_eva, to, from, n)
#define __invoke_copy_to_user(to, from, n) \
__invoke_copy_to(__copy_to_user_eva, to, from, n)
@@ -930,8 +919,6 @@ extern size_t __copy_in_user_eva(void *__to, const void *__from, size_t __n);
__cu_len; \
})
extern size_t __copy_user_inatomic(void *__to, const void *__from, size_t __n);
#define __copy_to_user_inatomic(to, from, n) \
({ \
void __user *__cu_to; \
@@ -966,12 +953,10 @@ extern size_t __copy_user_inatomic(void *__to, const void *__from, size_t __n);
check_object_size(__cu_to, __cu_len, false); \
\
if (eva_kernel_access()) \
__cu_len = __invoke_copy_from_kernel_inatomic(__cu_to, \
__cu_from,\
__cu_len = __invoke_copy_from_kernel(__cu_to, __cu_from,\
__cu_len);\
else \
__cu_len = __invoke_copy_from_user_inatomic(__cu_to, \
__cu_from, \
__cu_len = __invoke_copy_from_user(__cu_to, __cu_from, \
__cu_len); \
__cu_len; \
})