diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2012-05-25 13:02:48 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2012-06-13 10:28:16 +0900 |
| commit | 0e100e11bd73be4e28e457cf5ad49a6892d5d1fe (patch) | |
| tree | 55e193c2f37f458bd51d363bac78e20897c86b49 /arch/sh/include/asm/uaccess_32.h | |
| parent | 94fa83c424321189ca24fb6cb4c0d224cdedc72d (diff) | |
sh: switch to generic strncpy_from_user().
This kills off the special sh32/64 versions and adopts the generic
version. It should be possible to optimize this for SH-4A unaligned
loads, but this is a corner case that can be supported incrementally.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include/asm/uaccess_32.h')
| -rw-r--r-- | arch/sh/include/asm/uaccess_32.h | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/arch/sh/include/asm/uaccess_32.h b/arch/sh/include/asm/uaccess_32.h index ae0d24f6653f..ef44d05bb631 100644 --- a/arch/sh/include/asm/uaccess_32.h +++ b/arch/sh/include/asm/uaccess_32.h @@ -170,45 +170,6 @@ __asm__ __volatile__( \ extern void __put_user_unknown(void); -static inline int -__strncpy_from_user(unsigned long __dest, unsigned long __user __src, int __count) -{ - __kernel_size_t res; - unsigned long __dummy, _d, _s, _c; - - __asm__ __volatile__( - "9:\n" - "mov.b @%2+, %1\n\t" - "cmp/eq #0, %1\n\t" - "bt/s 2f\n" - "1:\n" - "mov.b %1, @%3\n\t" - "dt %4\n\t" - "bf/s 9b\n\t" - " add #1, %3\n\t" - "2:\n\t" - "sub %4, %0\n" - "3:\n" - ".section .fixup,\"ax\"\n" - "4:\n\t" - "mov.l 5f, %1\n\t" - "jmp @%1\n\t" - " mov %9, %0\n\t" - ".balign 4\n" - "5: .long 3b\n" - ".previous\n" - ".section __ex_table,\"a\"\n" - " .balign 4\n" - " .long 9b,4b\n" - ".previous" - : "=r" (res), "=&z" (__dummy), "=r" (_s), "=r" (_d), "=r"(_c) - : "0" (__count), "2" (__src), "3" (__dest), "4" (__count), - "i" (-EFAULT) - : "memory", "t"); - - return res; -} - /* * Return the size of a string (including the ending 0 even when we have * exceeded the maximum string length). |