get rid of unused __strncpy_from_user() instances

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/cris/include/asm/uaccess.h

@@ -172,12 +172,6 @@ extern unsigned long __copy_user(void __user *to, const void *from, unsigned lon
 extern unsigned long __copy_user_in(void *to, const void __user *from, unsigned long n);
 extern unsigned long __do_clear_user(void __user *to, unsigned long n);
 
-static inline long
-__strncpy_from_user(char *dst, const char __user *src, long count)
-{
-	return __do_strncpy_from_user(dst, src, count);
-}
-
 static inline long
 strncpy_from_user(char *dst, const char __user *src, long count)
 {

arch/m32r/include/asm/uaccess.h

@@ -482,8 +482,6 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n)
 
 long __must_check strncpy_from_user(char *dst, const char __user *src,
 				long count);
-long __must_check __strncpy_from_user(char *dst,
-				const char __user *src, long count);
 
 /**
  * __clear_user: - Zero a block of memory in user space, with less checking.

arch/m32r/kernel/m32r_ksyms.c

@@ -23,7 +23,6 @@ EXPORT_SYMBOL(__ioremap);
 EXPORT_SYMBOL(iounmap);
 
 EXPORT_SYMBOL(strncpy_from_user);
-EXPORT_SYMBOL(__strncpy_from_user);
 EXPORT_SYMBOL(clear_user);
 EXPORT_SYMBOL(__clear_user);
 EXPORT_SYMBOL(strnlen_user);

arch/m32r/lib/usercopy.c

@@ -88,14 +88,6 @@ do {									\
 
 #endif /* CONFIG_ISA_DUAL_ISSUE */
 
-long
-__strncpy_from_user(char *dst, const char __user *src, long count)
-{
-	long res;
-	__do_strncpy_from_user(dst, src, count, res);
-	return res;
-}
-
 long
 strncpy_from_user(char *dst, const char __user *src, long count)
 {

arch/microblaze/include/asm/uaccess.h

@@ -355,14 +355,12 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n)
  */
 extern int __strncpy_user(char *to, const char __user *from, int len);
 
-#define __strncpy_from_user	__strncpy_user
-
 static inline long
 strncpy_from_user(char *dst, const char __user *src, long count)
 {
 	if (!access_ok(VERIFY_READ, src, 1))
 		return -EFAULT;
-	return __strncpy_from_user(dst, src, count);
+	return __strncpy_user(dst, src, count);
 }
 
 /*

arch/mips/include/asm/uaccess.h

@@ -967,60 +967,6 @@ __clear_user(void __user *addr, __kernel_size_t size)
 	__cl_size;							\
 })
 
-extern long __strncpy_from_kernel_nocheck_asm(char *__to, const char __user *__from, long __len);
-extern long __strncpy_from_user_nocheck_asm(char *__to, const char __user *__from, long __len);
-
-/*
- * __strncpy_from_user: - Copy a NUL terminated string from userspace, with less checking.
- * @dst:   Destination address, in kernel space.  This buffer must be at
- *	   least @count bytes long.
- * @src:   Source address, in user space.
- * @count: Maximum number of bytes to copy, including the trailing NUL.
- *
- * Copies a NUL-terminated string from userspace to kernel space.
- * Caller must check the specified block with access_ok() before calling
- * this function.
- *
- * On success, returns the length of the string (not including the trailing
- * NUL).
- *
- * If access to userspace fails, returns -EFAULT (some data may have been
- * copied).
- *
- * If @count is smaller than the length of the string, copies @count bytes
- * and returns @count.
- */
-static inline long
-__strncpy_from_user(char *__to, const char __user *__from, long __len)
-{
-	long res;
-
-	if (eva_kernel_access()) {
-		__asm__ __volatile__(
-			"move\t$4, %1\n\t"
-			"move\t$5, %2\n\t"
-			"move\t$6, %3\n\t"
-			__MODULE_JAL(__strncpy_from_kernel_nocheck_asm)
-			"move\t%0, $2"
-			: "=r" (res)
-			: "r" (__to), "r" (__from), "r" (__len)
-			: "$2", "$3", "$4", "$5", "$6", __UA_t0, "$31", "memory");
-	} else {
-		might_fault();
-		__asm__ __volatile__(
-			"move\t$4, %1\n\t"
-			"move\t$5, %2\n\t"
-			"move\t$6, %3\n\t"
-			__MODULE_JAL(__strncpy_from_user_nocheck_asm)
-			"move\t%0, $2"
-			: "=r" (res)
-			: "r" (__to), "r" (__from), "r" (__len)
-			: "$2", "$3", "$4", "$5", "$6", __UA_t0, "$31", "memory");
-	}
-
-	return res;
-}
-
 extern long __strncpy_from_kernel_asm(char *__to, const char __user *__from, long __len);
 extern long __strncpy_from_user_asm(char *__to, const char __user *__from, long __len);
 

arch/mips/lib/strncpy_user.S

@@ -35,7 +35,6 @@ LEAF(__strncpy_from_\func\()_asm)
 	and		v0, a1
 	bnez		v0, .Lfault\@
 
-FEXPORT(__strncpy_from_\func\()_nocheck_asm)
 	move		t0, zero
 	move		v1, a1
 .ifeqs "\func","kernel"
@@ -70,16 +69,12 @@ FEXPORT(__strncpy_from_\func\()_nocheck_asm)
 #ifndef CONFIG_EVA
 	/* Set aliases */
 	.global __strncpy_from_user_asm
-	.global __strncpy_from_user_nocheck_asm
 	.set __strncpy_from_user_asm, __strncpy_from_kernel_asm
-	.set __strncpy_from_user_nocheck_asm, __strncpy_from_kernel_nocheck_asm
 EXPORT_SYMBOL(__strncpy_from_user_asm)
-EXPORT_SYMBOL(__strncpy_from_user_nocheck_asm)
 #endif
 
 __BUILD_STRNCPY_ASM kernel
 EXPORT_SYMBOL(__strncpy_from_kernel_asm)
-EXPORT_SYMBOL(__strncpy_from_kernel_nocheck_asm)
 
 #ifdef CONFIG_EVA
 	.set push
@@ -87,5 +82,4 @@ EXPORT_SYMBOL(__strncpy_from_kernel_nocheck_asm)
 __BUILD_STRNCPY_ASM user
 	.set pop
 EXPORT_SYMBOL(__strncpy_from_user_asm)
-EXPORT_SYMBOL(__strncpy_from_user_nocheck_asm)
 #endif

arch/mn10300/include/asm/uaccess.h

@@ -290,7 +290,6 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n)
 }
 
 extern long strncpy_from_user(char *dst, const char __user *src, long count);
-extern long __strncpy_from_user(char *dst, const char __user *src, long count);
 extern long strnlen_user(const char __user *str, long n);
 extern unsigned long clear_user(void __user *mem, unsigned long len);
 extern unsigned long __clear_user(void __user *mem, unsigned long len);

arch/mn10300/kernel/mn10300_ksyms.c

@@ -23,7 +23,6 @@ EXPORT_SYMBOL(memmove);
 EXPORT_SYMBOL(memset);
 
 EXPORT_SYMBOL(strncpy_from_user);
-EXPORT_SYMBOL(__strncpy_from_user);
 EXPORT_SYMBOL(clear_user);
 EXPORT_SYMBOL(__clear_user);
 EXPORT_SYMBOL(strnlen_user);

arch/mn10300/lib/usercopy.c

@@ -49,14 +49,6 @@ do {								\
 		: "memory", "cc");					\
 } while (0)
 
-long
-__strncpy_from_user(char *dst, const char *src, long count)
-{
-	long res;
-	__do_strncpy_from_user(dst, src, count, res);
-	return res;
-}
-
 long
 strncpy_from_user(char *dst, const char *src, long count)
 {

arch/xtensa/include/asm/uaccess.h

@@ -278,13 +278,12 @@ clear_user(void *addr, unsigned long size)
 
 
 extern long __strncpy_user(char *, const char *, long);
-#define __strncpy_from_user __strncpy_user
 
 static inline long
 strncpy_from_user(char *dst, const char *src, long count)
 {
 	if (access_ok(VERIFY_READ, src, 1))
-		return __strncpy_from_user(dst, src, count);
+		return __strncpy_user(dst, src, count);
 	return -EFAULT;
 }