diff options
author | Jonas Bonn <jonas@southpole.se> | 2012-05-27 04:25:47 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-28 00:00:32 -0400 |
commit | b48b2c3e50433ff6f7e46186daa7f986bd960215 (patch) | |
tree | 9a10b2130582f99df5ae7eae0b959425e791118c /arch/openrisc/lib | |
parent | 1629372caaaf7ef744d3b983be56b99468a68ff8 (diff) |
openrisc: use generic strnlen_user() function
The generic version is both easier to support and more correct.
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/openrisc/lib')
-rw-r--r-- | arch/openrisc/lib/string.S | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/arch/openrisc/lib/string.S b/arch/openrisc/lib/string.S index 8ceb11ebafb9..c09fee7dec14 100644 --- a/arch/openrisc/lib/string.S +++ b/arch/openrisc/lib/string.S | |||
@@ -103,50 +103,3 @@ __clear_user: | |||
103 | .section __ex_table, "a" | 103 | .section __ex_table, "a" |
104 | .long 9b, 99b // write fault | 104 | .long 9b, 99b // write fault |
105 | .previous | 105 | .previous |
106 | |||
107 | |||
108 | /* | ||
109 | * extern int __strnlen_user(const char *str, long len, unsigned long top); | ||
110 | * | ||
111 | * | ||
112 | * RTRN: - length of a string including NUL termination character | ||
113 | * - on page fault 0 | ||
114 | */ | ||
115 | |||
116 | .global __strnlen_user | ||
117 | __strnlen_user: | ||
118 | l.addi r1,r1,-8 | ||
119 | l.sw 0(r1),r6 | ||
120 | l.sw 4(r1),r3 | ||
121 | |||
122 | l.addi r11,r0,0 | ||
123 | 2: l.sfeq r11,r4 | ||
124 | l.bf 1f | ||
125 | l.addi r11,r11,1 | ||
126 | 8: l.lbz r6,0(r3) | ||
127 | l.sfeq r6,r0 | ||
128 | l.bf 1f | ||
129 | l.sfgeu r3,r5 // are we over the top ? | ||
130 | l.bf 99f | ||
131 | l.j 2b | ||
132 | l.addi r3,r3,1 | ||
133 | |||
134 | 1: | ||
135 | l.lwz r6,0(r1) | ||
136 | l.lwz r3,4(r1) | ||
137 | l.jr r9 | ||
138 | l.addi r1,r1,8 | ||
139 | |||
140 | .section .fixup, "ax" | ||
141 | 99: | ||
142 | l.addi r11,r0,0 | ||
143 | |||
144 | l.lwz r6,0(r1) | ||
145 | l.lwz r3,4(r1) | ||
146 | l.jr r9 | ||
147 | l.addi r1,r1,8 | ||
148 | .previous | ||
149 | |||
150 | .section __ex_table, "a" | ||
151 | .long 8b, 99b // read fault | ||
152 | .previous | ||