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-rw-r--r--arch/mips/include/asm/uaccess.h44
-rw-r--r--arch/mips/lib/Makefile2
-rw-r--r--arch/mips/lib/strlen_user.S65
3 files changed, 1 insertions, 110 deletions
diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
index 99e629a590a5..846628eee108 100644
--- a/arch/mips/include/asm/uaccess.h
+++ b/arch/mips/include/asm/uaccess.h
@@ -1073,50 +1073,6 @@ strncpy_from_user(char *__to, const char __user *__from, long __len)
return res;
}
-extern long __strlen_kernel_asm(const char __user *s);
-extern long __strlen_user_asm(const char __user *s);
-
-/*
- * strlen_user: - Get the size of a string in user space.
- * @str: The string to measure.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * Get the size of a NUL-terminated string in user space.
- *
- * Returns the size of the string INCLUDING the terminating NUL.
- * On exception, returns 0.
- *
- * If there is a limit on the length of a valid string, you may wish to
- * consider using strnlen_user() instead.
- */
-static inline long strlen_user(const char __user *s)
-{
- long res;
-
- if (eva_kernel_access()) {
- __asm__ __volatile__(
- "move\t$4, %1\n\t"
- __MODULE_JAL(__strlen_kernel_asm)
- "move\t%0, $2"
- : "=r" (res)
- : "r" (s)
- : "$2", "$4", __UA_t0, "$31");
- } else {
- might_fault();
- __asm__ __volatile__(
- "move\t$4, %1\n\t"
- __MODULE_JAL(__strlen_user_asm)
- "move\t%0, $2"
- : "=r" (res)
- : "r" (s)
- : "$2", "$4", __UA_t0, "$31");
- }
-
- return res;
-}
-
extern long __strnlen_kernel_nocheck_asm(const char __user *s, long n);
extern long __strnlen_user_nocheck_asm(const char __user *s, long n);
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
index 0344e575f522..a37fe3d1ee2f 100644
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/lib/Makefile
@@ -3,7 +3,7 @@
#
lib-y += bitops.o csum_partial.o delay.o memcpy.o memset.o \
- mips-atomic.o strlen_user.o strncpy_user.o \
+ mips-atomic.o strncpy_user.o \
strnlen_user.o uncached.o
obj-y += iomap.o
diff --git a/arch/mips/lib/strlen_user.S b/arch/mips/lib/strlen_user.S
deleted file mode 100644
index 40be22625bc5..000000000000
--- a/arch/mips/lib/strlen_user.S
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1996, 1998, 1999, 2004 by Ralf Baechle
- * Copyright (C) 1999 Silicon Graphics, Inc.
- * Copyright (C) 2011 MIPS Technologies, Inc.
- */
-#include <asm/asm.h>
-#include <asm/asm-offsets.h>
-#include <asm/export.h>
-#include <asm/regdef.h>
-
-#define EX(insn,reg,addr,handler) \
-9: insn reg, addr; \
- .section __ex_table,"a"; \
- PTR 9b, handler; \
- .previous
-
-/*
- * Return the size of a string (including the ending 0)
- *
- * Return 0 for error
- */
- .macro __BUILD_STRLEN_ASM func
-LEAF(__strlen_\func\()_asm)
- LONG_L v0, TI_ADDR_LIMIT($28) # pointer ok?
- and v0, a0
- bnez v0, .Lfault\@
-
- move v0, a0
-.ifeqs "\func", "kernel"
-1: EX(lbu, v1, (v0), .Lfault\@)
-.else
-1: EX(lbue, v1, (v0), .Lfault\@)
-.endif
- PTR_ADDIU v0, 1
- bnez v1, 1b
- PTR_SUBU v0, a0
- jr ra
- END(__strlen_\func\()_asm)
-
-.Lfault\@: move v0, zero
- jr ra
- .endm
-
-#ifndef CONFIG_EVA
- /* Set aliases */
- .global __strlen_user_asm
- .set __strlen_user_asm, __strlen_kernel_asm
-EXPORT_SYMBOL(__strlen_user_asm)
-#endif
-
-__BUILD_STRLEN_ASM kernel
-EXPORT_SYMBOL(__strlen_kernel_asm)
-
-#ifdef CONFIG_EVA
-
- .set push
- .set eva
-__BUILD_STRLEN_ASM user
- .set pop
-EXPORT_SYMBOL(__strlen_user_asm)
-#endif