diff options
Diffstat (limited to 'arch/arm/lib/strncpy_from_user.S')
-rw-r--r-- | arch/arm/lib/strncpy_from_user.S | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/arch/arm/lib/strncpy_from_user.S b/arch/arm/lib/strncpy_from_user.S deleted file mode 100644 index f202d7bd1647..000000000000 --- a/arch/arm/lib/strncpy_from_user.S +++ /dev/null | |||
@@ -1,43 +0,0 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/lib/strncpy_from_user.S | ||
3 | * | ||
4 | * Copyright (C) 1995-2000 Russell King | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | */ | ||
10 | #include <linux/linkage.h> | ||
11 | #include <asm/assembler.h> | ||
12 | #include <asm/errno.h> | ||
13 | |||
14 | .text | ||
15 | .align 5 | ||
16 | |||
17 | /* | ||
18 | * Copy a string from user space to kernel space. | ||
19 | * r0 = dst, r1 = src, r2 = byte length | ||
20 | * returns the number of characters copied (strlen of copied string), | ||
21 | * -EFAULT on exception, or "len" if we fill the whole buffer | ||
22 | */ | ||
23 | ENTRY(__strncpy_from_user) | ||
24 | mov ip, r1 | ||
25 | 1: subs r2, r2, #1 | ||
26 | ldrusr r3, r1, 1, pl | ||
27 | bmi 2f | ||
28 | strb r3, [r0], #1 | ||
29 | teq r3, #0 | ||
30 | bne 1b | ||
31 | sub r1, r1, #1 @ take NUL character out of count | ||
32 | 2: sub r0, r1, ip | ||
33 | mov pc, lr | ||
34 | ENDPROC(__strncpy_from_user) | ||
35 | |||
36 | .pushsection .fixup,"ax" | ||
37 | .align 0 | ||
38 | 9001: mov r3, #0 | ||
39 | strb r3, [r0, #0] @ null terminate | ||
40 | mov r0, #-EFAULT | ||
41 | mov pc, lr | ||
42 | .popsection | ||
43 | |||