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h8300: remove stale strncpy_from_user

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This function is never called because h8300 uses the asm-generic
inline function version.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2021-05-14 23:57:16 +02:00
parent f27180dd63
commit 2f69b04a88
3 changed files with 1 additions and 38 deletions
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2
arch/h8300/kernel/h8300_ksyms.c
View File

@ -19,7 +19,6 @@ asmlinkage long __mulsi3(long, long);
asmlinkage long __udivsi3(long, long);
asmlinkage void *memcpy(void *, const void *, size_t);
asmlinkage void *memset(void *, int, size_t);
asmlinkage long strncpy_from_user(void *to, void *from, size_t n);
/* gcc lib functions */
EXPORT_SYMBOL(__ucmpdi2);
@ -34,4 +33,3 @@ EXPORT_SYMBOL(__mulsi3);
EXPORT_SYMBOL(__udivsi3);
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(strncpy_from_user);

2
arch/h8300/lib/Makefile
View File

@ -3,7 +3,7 @@
# Makefile for H8/300-specific library files..
#
lib-y = memcpy.o memset.o abs.o strncpy.o \
lib-y = memcpy.o memset.o abs.o \
mulsi3.o udivsi3.o muldi3.o moddivsi3.o \
ashldi3.o lshrdi3.o ashrdi3.o ucmpdi2.o \
delay.o

35
arch/h8300/lib/strncpy.S
View File

@ -1,35 +0,0 @@
;;; SPDX-License-Identifier: GPL-2.0
;;; strncpy.S
#include <asm/linkage.h>
.text
.global strncpy_from_user
;;; long strncpy_from_user(void *to, void *from, size_t n)
strncpy_from_user:
mov.l er2,er2
bne 1f
sub.l er0,er0
rts
1:
mov.l er4,@-sp
sub.l er3,er3
2:
mov.b @er1+,r4l
mov.b r4l,@er0
adds #1,er0
beq 3f
inc.l #1,er3
dec.l #1,er2
bne 2b
3:
dec.l #1,er2
4:
mov.b r4l,@er0
adds #1,er0
dec.l #1,er2
bne 4b
mov.l er3,er0
mov.l @sp+,er4
rts