diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2017-03-28 01:37:07 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-03-28 18:24:04 -0400 |
| commit | 2ef59f28567f8a5d66dccc0e6a99a1bd655fd605 (patch) | |
| tree | fba9febbc2705f8f18e410f0f6018845a04f0fd2 | |
| parent | d597580d373774b1bdab84b3d26ff0b55162b916 (diff) | |
unicore32: get rid of zeroing and switch to RAW_COPY_USER
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | arch/unicore32/Kconfig | 1 | ||||
| -rw-r--r-- | arch/unicore32/include/asm/uaccess.h | 6 | ||||
| -rw-r--r-- | arch/unicore32/kernel/ksyms.c | 4 | ||||
| -rw-r--r-- | arch/unicore32/lib/copy_from_user.S | 16 | ||||
| -rw-r--r-- | arch/unicore32/lib/copy_to_user.S | 6 |
5 files changed, 16 insertions, 17 deletions
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig index 0769066929c6..319519eaed24 100644 --- a/arch/unicore32/Kconfig +++ b/arch/unicore32/Kconfig @@ -18,6 +18,7 @@ config UNICORE32 select ARCH_WANT_FRAME_POINTERS select GENERIC_IOMAP select MODULES_USE_ELF_REL + select ARCH_HAS_RAW_COPY_USER help UniCore-32 is 32-bit Instruction Set Architecture, including a series of low-power-consumption RISC chip diff --git a/arch/unicore32/include/asm/uaccess.h b/arch/unicore32/include/asm/uaccess.h index b2bcab69dfee..1d55f2f83759 100644 --- a/arch/unicore32/include/asm/uaccess.h +++ b/arch/unicore32/include/asm/uaccess.h @@ -24,15 +24,17 @@ #define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size))) extern 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); extern 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); extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n); extern unsigned long __must_check __strncpy_from_user(char *to, const char __user *from, unsigned long count); extern unsigned long __strnlen_user(const char __user *s, long n); +#define INLINE_COPY_FROM_USER +#define INLINE_COPY_TO_USER #include <asm-generic/uaccess.h> diff --git a/arch/unicore32/kernel/ksyms.c b/arch/unicore32/kernel/ksyms.c index 0323528a80fd..dcc72ee1fcdb 100644 --- a/arch/unicore32/kernel/ksyms.c +++ b/arch/unicore32/kernel/ksyms.c @@ -46,8 +46,8 @@ EXPORT_SYMBOL(__strncpy_from_user); EXPORT_SYMBOL(copy_page); -EXPORT_SYMBOL(__copy_from_user); -EXPORT_SYMBOL(__copy_to_user); +EXPORT_SYMBOL(raw_copy_from_user); +EXPORT_SYMBOL(raw_copy_to_user); EXPORT_SYMBOL(__clear_user); EXPORT_SYMBOL(__ashldi3); diff --git a/arch/unicore32/lib/copy_from_user.S b/arch/unicore32/lib/copy_from_user.S index ab0767ea5dbd..5f80fcbe8631 100644 --- a/arch/unicore32/lib/copy_from_user.S +++ b/arch/unicore32/lib/copy_from_user.S @@ -16,7 +16,7 @@ /* * Prototype: * - * size_t __copy_from_user(void *to, const void *from, size_t n) + * size_t raw_copy_from_user(void *to, const void *from, size_t n) * * Purpose: * @@ -87,22 +87,18 @@ .text -ENTRY(__copy_from_user) +ENTRY(raw_copy_from_user) #include "copy_template.S" -ENDPROC(__copy_from_user) +ENDPROC(raw_copy_from_user) .pushsection .fixup,"ax" .align 0 copy_abort_preamble - ldm.w (r1, r2), [sp]+ - sub r3, r0, r1 - rsub r2, r3, r2 - stw r2, [sp] - mov r1, #0 - b.l memset - ldw.w r0, [sp]+, #4 + ldm.w (r1, r2, r3), [sp]+ + sub r0, r0, r1 + rsub r0, r0, r2 copy_abort_end .popsection diff --git a/arch/unicore32/lib/copy_to_user.S b/arch/unicore32/lib/copy_to_user.S index 6e22151c840d..857c6816ffe7 100644 --- a/arch/unicore32/lib/copy_to_user.S +++ b/arch/unicore32/lib/copy_to_user.S @@ -16,7 +16,7 @@ /* * Prototype: * - * size_t __copy_to_user(void *to, const void *from, size_t n) + * size_t raw_copy_to_user(void *to, const void *from, size_t n) * * Purpose: * @@ -79,11 +79,11 @@ .text -WEAK(__copy_to_user) +WEAK(raw_copy_to_user) #include "copy_template.S" -ENDPROC(__copy_to_user) +ENDPROC(raw_copy_to_user) .pushsection .fixup,"ax" .align 0 |